JPH0716284B2 - Pipe / cable installation method and installation 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 method and apparatus for laying pipes / cables for wiring / piping indoors and outdoors.

[0002]

2. Description of the Related Art Conventionally, for example, indoors such as factories and train stations,
When laying a large number of cables outdoors, assemble a ladder-shaped cable ladder that is composed of a parent girder and a child girder, hang this cable ladder on a hanging bolt that is hung from the ceiling wall, and place it on the cable ladder. Cables are laid.

In this case, as a method of laying the cable,
As shown in FIG. 20, a method has been adopted in which the cable C is pulled up from the end to the cable ladder L, and the operator sequentially pulls the cable C onto the cable ladder L while moving from place to place.

As another method, FIG. 21 and FIG.
As shown in FIG. 5, the worker hangs the messenger rope R from one end to the other end over the cable ladder L while sequentially moving the place, connects the cable C to the messenger rope R, and connects the other end of the cable ladder L. The method of pulling the cable C onto the cable ladder L by winding the messenger rope R arranged at the end of the with a towing machine M has been adopted.

[0005]

However, in such a cable laying operation, it is difficult to assemble and install the cable ladder, and when the cable is laid on the cable ladder, an operator suspends the cable ladder. There was a problem that it took time and labor for the worker to lay cables and messenger ropes while sequentially moving the place through the hanging bolts.

The present invention has been made in view of the above circumstances, and eliminates the need for a receiver such as a cable ladder which has conventionally been difficult to install, and is affected by a hanging bolt or the like which hinders the cable laying work. It is possible to lay cables efficiently without having to do so, and it can be applied to pipes such as conduits and fluid pipes for passing fluid such as hot water and water. It is intended to provide a laying device.

[0007]

That is, as a means for solving the above-mentioned problems, the invention according to claim 1 has "a) a holding portion for holding a suspension member for suspending a pipe / cable. A step of arranging a hollow shooter having axially continuous slits on a wall surface or suspended from a ceiling wall; b) A shuttle provided with a rope having rigidity that can be pushed by itself is started into the shooter. C) Attaching the suspension member to the pipe / cable; d) Connecting the pipe / cable to the shuttle at the end point; e) Pulling the rope to hold the suspension member on the shooter and the shuttle to the starting point The process of pulling back and pulling in the cable. A pipe / cable laying method characterized by laying pipes / cables according to

According to the second aspect of the invention, "a hollow member having a suspension member for suspending a pipe / cable, a holding portion for holding the suspension member, and a slit continuous in the axial direction is provided. A tube comprising a shooter, a shuttle for inserting a tube / cable or a spare rope into the shooter, and a erection tool having a rope having rigidity that can be pushed into the shooter by itself.・ Cable laying device ”.

[0009]

In the pipe / cable laying method according to the present invention, the suspension member is attached to the pipe / cable, and the shuttle provided with the rope in the shooter is reciprocated to thereby suspend the suspension member. It is designed to be held by a shooter and the pipes and cables laid in a suspended state. Therefore, a receiver such as a cable ladder is not required, and the pipe / cable laying work can be efficiently performed without being hindered by the hanging bolts or the like. Moreover, since the pipes and cables are laid in a suspended state, the pipes and cables to be laid can be arranged vertically, and a plurality of pipes and cables can be laid without taking up space. Also,
The laying apparatus according to claim 2 has a simple structure of a shooter, a laying tool including a shuttle and a rope that is inserted into the shooter, and a suspension member that suspends a pipe / cable, and the apparatus itself. It is possible to reduce the cost.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The pipe / cable laying method according to claims 1 to 3 and the laying device according to claim 4 will be described in detail below with reference to the embodiments shown in the drawings. The pipe / cable laying method according to claim 1 will be described with reference to a concrete example shown in the drawings using a cable as an example.

First, as shown in FIG. 1, a slit 21 which has a holding portion 22 for holding a suspension member and is continuous in the axial direction.
A hollow shooter 2 provided with is suspended from a ceiling wall by a suspension bolt B and arranged. The shooter 2 may be arranged so as to be directly fixed to the ceiling wall or the side wall.
Then, the shuttle 3 provided with the rope 4 having the rigidity that can be pushed in by itself is fed into the shooter 2 from the starting point. The start point and the end point described later are not limited to the beginning and end of the pipe / cable installation route, but also mean a point between the installation routes. This is because the pipe / cable may be once laid up to the middle of the laying route and may be continuously laid if the laying route is long or bent in the middle.

Next, as shown in FIG. 2, the suspension member 1 is attached to the cable C at the end point and the cable C or the suspension member 1 is connected to the shuttle 3. The suspension member 1
May be attached to the cable C before connecting the cable C or the suspension member 1 to the shuttle 3, at the time of connecting, or after connecting.

Then, as shown in FIG. 3, the shuttle 3 is pulled back to the starting point while the rope 4 is pulled to hold the suspension member 1 on the shooter 2. As a result, the cable C is laid in a suspended state on the shooter 2. After the installation, the shuttle 3 is separated from the cable C.

Regarding the method of laying this pipe / cable,
c) The process of attaching the suspension member to the pipe / cable is
It may be before connecting the cable to the shuttle, at the time of connecting it, or after connecting it, and therefore the procedure of the following pattern is included. (1) a → b → c → d → e (2) a → b → d → c → e (3) a → c → b → d → e (4) c → a → b → d → e

When a relatively heavy cable or pipe is laid, the pipe / cable is not directly connected to the shuttle as described below, but is connected and laid via a spare rope 5. May be

One of the methods in this case is as follows: a) A hollow shooter having a holding portion for holding a suspension member for suspending a pipe / cable and having axially continuous slits on the wall surface. Or a step of suspending and arranging from the ceiling wall; b) a step of sending a shuttle equipped with a rope having rigidity that can be pushed by itself into a shooter from a starting point; c) connecting an auxiliary rope to the shuttle at an end point, Pulling back the shuttle with the spare rope back to the starting point and stretching the spare rope between the start and end points; d) attaching suspension members to the pipe / cable; e) connecting the pipe / cable to the spare rope F) a step of pulling the auxiliary rope to the start point or the end point and pulling the cable while holding the suspension member on the shooter. There is a method of laying pipes and cables.

Specifically, first, as shown in FIG. 4, a hollow shooter 2 having a holding portion 22 for holding a suspension member and having a slit 21 continuous in the axial direction is hung from a ceiling wall. Suspend with bolt B and arrange. Then, the shuttle 3 provided with the rope 4 having the rigidity that can be pushed by itself is fed into the shooter 2 from the starting point. Up to this point, the method is the same as that shown in FIGS. Then
As shown in FIG. 5, the spare rope 5 is connected at the end point. Then, as shown in FIG. 6, the rope 4 is pulled to pull the shuttle 3 together with the spare rope 5 back to the start point, and the spare rope 5 is stretched between the start point and the end point. In this case, the spare rope 5 may be stretched along the shooter 2 or in the shooter 2. Therefore, the spare rope 5 is held at the start point and the end point. Next, as shown in FIG. 7, the suspension member 1 is attached to the cable C at the end point (or the start point), and the cable C or the suspension member 1 is connected to the spare rope 5. The cable C or the suspension member 1 and the spare rope 5 may be connected before the spare rope 5 is stretched (FIG. 5) or after the spare rope 5 is stretched (FIG. 7). Then, as shown in FIG. 8, the spare rope 5 is pulled to the start point (or end point) to hold the suspension member 1 on the shooter 2,
Install the cable C in a suspended state.

In the above method, the steps d) and e) may be performed before or after the preliminary rope is stretched, so that the steps (1) shown in FIGS. 4 to 8 are performed. a → b → c
In addition to the procedure of → d → e → f, the following pattern procedure may be used. (2) a → b → c → e → d → f (3) a →
d → e → b → c → f (4) a → e → d → b → c → f (5) a →
b → d → e → c → f (6) a → b → e → d → c → f (7) a →
b → d → c → e → f (8) a → b → e → c → d → f (9) a →
d → b → c → e → f (10) a → d → b → e → c → f (11) a
→ e → b → d → c → f (12) a → e → b → c → d → f (13) d
→ a → b → c → e → f (14) d → e → a → b → c → f (15) d
→ a → e → b → c → f (16) d → a → b → e → c → f (17) e
→ a → b → c → d → f (18) e → d → a → b → c → f (19) e
→ a → d → b → c → f (20) e → a → b → d → c → f

As another method using a spare rope, a) a hollow shooter having a holding portion for holding a suspension member for suspending a pipe / cable and having slits continuous in the axial direction. Placing on a wall or hanging from a ceiling wall; b) connecting a spare rope to a shuttle equipped with a rope having rigidity that can be pushed in by itself, sending the shuttle into the shooter from the start point to the end point, and Step of stretching the rope between the start point and the end point; c) Step of attaching the suspension member to the pipe / cable; d) Step of connecting the pipe / cable to the spare rope; e) Pulling and suspending the spare rope to the start point or the end point The process of pulling in the cable while holding the member on the shooter. There is a method of laying pipes and cables.

Specifically, first, as shown in FIG. 9, a hollow shooter 2 having a holding portion 22 for holding a suspension member and having axially continuous slits 21 is suspended from a ceiling wall. Suspend with bolt B and arrange. Then, the spare rope 5 is connected to the shuttle 3 provided with the rope 4 having the rigidity that can be pushed in by itself. And FIG.
As shown in 0, the shuttle 3 is fed into the shooter 2 from the start point to the end point, and the spare rope 5 is stretched between the start point and the end point. Then, as shown in FIG. 11, the end point (or start point)
The suspension member 1 is attached to the cable C, and the cable C or the suspension member 1 is connected to the spare rope 5. In this case, similarly to the method shown in FIGS. 4 to 8, the cable C or the suspension member 1 and the spare rope 5 may be connected before or after the spare rope 5 is stretched. . Then, as shown in FIG. 12, the spare rope 5 is pulled to the start point (or the end point), the suspension member 1 is held by the shooter 2, and the cable C is laid in a suspended state.

Also in the case of this method, the steps c) and d) may be performed before or after the preliminary rope is stretched, so that the steps (1) shown in FIGS. a → b →
In addition to the procedure of c → d → e, the procedure of the following pattern may be used. (2) a → b → d → c → e (3) a → c → b
→ d → e (4) a → c → d → b → e (5) a → d → b
→ c → e (6) a → d → c → b → e (7) c → a → b
→ d → e (8) c → a → d → b → e (9) c → d → a
→ b → e (10) d → a → b → c → e (11) d → a →
c → b → e (12) d → c → a → b → e

The method using the spare rope is to use the shuttle 3 to stretch the spare rope. In this method, a machine or the like is installed below the rope to stretch the spare rope in a factory or the like. However, there is an advantage that the work can be carried over without any obstacle. If there are no obstacles, it is possible to stretch the spare rope in advance on the floor and place it on the floor to pull it up. These laying methods can be similarly applied to a conduit such as a conduit tube or a fluid tube made of a rigid resin that allows a fluid such as hot water or water to pass therethrough.

Next, a laying apparatus used in the above-mentioned laying method will be described. FIG. 13 shows an embodiment of the shooter 2 used in the laying apparatus. The shuttle 3 and rope 5, which are the laying tools shown in FIG. 15, can be inserted therethrough, and the suspension member shown in FIG. 1 can be held in a suspended state.

In the example shown in FIG. 13, a plurality of shooters 2 are integrally provided in parallel with each other, and the shooters 2 are attached to suspension bolts B suspended from the ceiling wall and arranged in a suspended state from the ceiling wall. It has become so. Note that many cables are usually laid, and as shown in FIG. 13, it is convenient to use a plurality of shooters 2 integrally formed in a parallel state, but each shooter is a separate shooter. Alternatively, the number of shooters 2 may be changed so that the two can be assembled.

The shooter 2 may be directly attached to a wall such as a ceiling wall or a side wall as shown in FIG.
In this case, the wall may be a concrete wall or a plate wall such as a panel or a board. Further, the wall includes a case where a plate material and a bar material for fixing the shooter 2 are directly attached to the wall surface.

The shooter 2 is hollow and is shown in FIG.
The shuttle 3 and the rope 4, which are the installation tools as shown in FIG. The shooter 2 may have a circular cross section, a square cross section, or any other shape as long as the shuttle 3 and the rope 4 can be inserted therethrough.

Further, the shooter 2 is provided with a slit 21 continuous in the axial direction. This slit 21 connects the shuttle 3 to the cable C or the pipe, or the shuttle 3
And the spare rope 5 are connected to each other, or the suspension member 1 is moved while being held by the shooter 2. The slit 21 is also required when the suspension member 1 is connected to the shuttle 3.

The shooter 2 holds the suspension member 1 shown in FIG. 11 in a suspended state. That is,
A lower inner surface of the hollow shooter 2 having a square cross section is formed as a holding portion 22, and the suspension member 1 is held by being hooked with a brim-shaped hooking piece 12 formed on the upper portion thereof. It has become so.

As a form for holding the suspension member 1,
The suspension member 1 may be held on the outer surface of the shooter 3 by providing a collar-shaped locking piece on the outer surface of the shooter 3 or by using the shooter 3 having a circular cross section.

The shooter 2 as described above is manufactured to have a length of about several meters by extrusion molding or pressing of metal or synthetic resin. Therefore, it is desirable that the shooter 2 has a structure that can be connected to each other. Further, in order to prevent the slits 21 provided in the shooter 2 from being displaced in a continuous state and to facilitate the alignment of the slits 21, there is provided a fitting structure, a connecting structure for inserting pins, and the like. desirable.

FIG. 15 shows an embodiment of the shuttle 3 and the rope 4 which are the installation tools used in the installation device. The shuttle 3 is to be inserted into the shooter 2, and its shape may be a cylindrical shape or a spindle shape, but as shown in FIG. 15, in order to make the insertion into the shooter 2 smooth, A cylindrical shape with a spindle-shaped tip is desirable. In addition, it is desirable that the shooter 2 be lightweight because it reciprocates.

The shuttle 3 is used to connect the cable or pipe, or the suspension member 1, and in the example shown in FIG. 15, an extension member 31 having a connection hole 32 on the side of the shuttle 3. Is provided. In this case, the connecting rope can be inserted into the connecting hole 32 to connect the cable to the connecting rope, or the suspension member 1 can be connected. The structure for connecting the cable, the pipe, or the suspension member 1 in this way is not limited to the case of using the connecting rope. Further, as shown in FIG. 15, the structure is not limited to the structure in which the extension member 31 is provided in the shuttle 3, but a structure in which a connection hole for connecting a connection rope to the shuttle 3 itself may be provided.

The rope 4 is connected to the shuttle 3, and has a rigidity that allows the rope 4 to be pushed into the shooter 2 by itself and a breaking strength that can withstand the tension applied when the cable or the pipe is pulled in. Good. As such a rope 4, for example, a steel wire or a plurality of steel wires braided, a rod shape extruded of synthetic resin, a tightly twisted synthetic resin fiber, a rope of F, R, P There are those formed in a shape. Since the rope 4 also reciprocates in the shooter 2 like the shuttle 3, it is desirable that the rope 4 be lightweight.

The shuttle 3 and the rope 4 have a structure in which the shuttle 3 and the rope 4 are connected to each other even when the shuttle 3 is integrally formed at the tip of the rope 4 or separately. May be.

FIG. 16 shows a suspension member 1 used in a laying device.
In the suspension member 1, a brim-shaped hooking piece 12 formed on the upper part of the suspension member 1 is hooked and held by the shooter 2. In addition, the suspension member 1 has a cylindrical attachment portion 11 for attaching a cable or a tube at its center.
have. In this example, the suspension member 1 is constructed such that a half-split body is assembled by fastening with a screw 13, and a cable or a pipe is sandwiched and fixed to a tubular attachment portion 11. In addition, as the attachment unit 11,
As shown in FIG. 16, a cable or a tube may be clamped and fixed, or a band may be used for fastening.

In addition to the example shown in FIG. 16, the suspension member 1 may be provided with a roller 14 as shown in FIG. 17 in order to improve sliding in the shooter 2. Further, as the suspension member 1, as shown in FIG. 18, it is assumed to be provided with a connection structure that can be replenished with bolts and nuts, and as shown in FIG.
It may be one that can be easily dealt with when laying pipes or pipes. Note that the attachment portion 11 of one suspension member 1 may have a structure capable of attaching a plurality of cables or tubes.

The spare rope 5 is stretched along the shooter 3 prior to laying the cable or pipe, and like the rope 4, has a structure capable of withstanding the tension applied when the cable or pipe is pulled in. Equipped,
Rigidity that can be pushed in by itself like the rope 4 is not necessary. The spare rope 5 is used when laying relatively heavy cables or pipes.

By using the laying device, the cable C or the pipe can be laid by the method shown in FIGS. 1 to 3, 4 to 8 or 9 to 12.

[0039]

As described above, in the pipe / cable laying method according to the first aspect of the present invention, the pipe / cable is suspended without using the cable ladder in which the cable is placed. Since it is hung and laid by a member, the work of the cable ladder which requires time and effort for installation is unnecessary, and the laying work can be made efficient. Further, since the pipe / cable is laid by reciprocating the shuttle provided with the rope in the shooter, the pipe / cable laying work can be efficiently performed without being hindered by the hanging bolts or the like. Further, the laying device according to the invention of claim 2 is easy to install and has a simple structure.
It can be supplied at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing one step of a laying method according to claim 1.

FIG. 2 is a perspective view showing one step of the laying method according to claim 1.

FIG. 3 is a perspective view showing one step of the laying method according to claim 1.

FIG. 4 is a perspective view showing a step of another cable laying method.

FIG. 5 is a perspective view showing a step of another cable laying method.

FIG. 6 is a perspective view showing a step of another cable laying method.

FIG. 7 is a perspective view showing a step of another cable laying method.

FIG. 8 is a perspective view showing a step of another cable laying method.

FIG. 9 is a perspective view showing a step of another cable laying method.

FIG. 10 is a perspective view showing a step of another cable laying method.

FIG. 11 is a perspective view showing one step of another cable laying method.

FIG. 12 is a perspective view showing one step of another cable laying method.

FIG. 13 is a perspective view showing an example of a shooter.

FIG. 14 is a perspective view showing another example of a shooter.

FIG. 15 is a perspective view showing an example of a shuttle and a wire.

FIG. 16 is a perspective view showing an example of a suspension member.

FIG. 17 is a perspective view showing another example of the suspension member.

FIG. 18 is a perspective view showing a suspension member of still another example.

19 is a cross-sectional view showing a state in which a cable is laid using the suspension member shown in FIG.

FIG. 20 is a side view showing a conventional cable laying method.

FIG. 21 is a side view showing a step of another conventional cable laying method.

FIG. 22 is a side view showing a step of another conventional cable laying method.

[Explanation of symbols]

 1 Suspension member 2 Shooter 3 Shuttle 4 Rope 11 Cable attachment part 21 Slit 22 Holding part B Hanging bolt C Cable

Claims (2)

[Claims] 1. A method of laying pipes and cables, which comprises laying pipes and cables by the following steps a) to e). a) a step of arranging a hollow shooter having a holding portion for holding a suspension member for suspending a pipe / cable and having a slit continuous in the axial direction, suspended from a wall surface or a ceiling wall; ) A step of feeding a shuttle equipped with a rope having rigidity that can be pushed by itself into the shooter from a starting point; c) A step of attaching a suspension member to the tube / cable; d) A step of connecting the tube / cable to the shuttle at an end point E) A step of pulling the rope to hold the suspension member on the shooter and pulling the shuttle back to the starting point to pull in the cable. 2. A hollow shooter having a suspension member for suspending a pipe / cable, a holding portion for holding the suspension member, and having a slit continuous in the axial direction, and being inserted into the shooter, A pipe / cable laying device comprising: a shuttle for connecting a pipe / cable or a spare rope; and a laying tool provided with a rope having rigidity that can be pushed into the shooter by itself.