JPH03239107A - Cable laying apparatus and tool used for the same - Google Patents

Abstract

PURPOSE:To facilitate cable laying by attaching hollow shooters having slits to a cable ladder and pulling a cable with a rope passed through the shooters. CONSTITUTION:Shooters 1 having fixation parts 3 are attached to the sidewalls and bottom of a cable ladder L. The hollow shooters 1 have axially-continuous slits 2. To lay a cable, a rope with a shuttle 4 at the tip is passed through the shooters 1. The shuttle 4 is equipped with a plate drawing member 41 having a connection hole. A cable C is connected with a connection rope 61 passed through the connection hole. therefore, the cable C can be laid in the cable ladder L by pulling the rope. The cable can be drawn with the shooters 1 whether or not there is the lifting bolts B of the cable ladder L.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cable laying device used for indoor and outdoor cable wiring, and an instrument used therefor.

(Prior art) Conventionally, when laying a large number of cables indoors and outdoors in factories, station premises, etc., cables with a uniform cross section as shown in FIG. 27, or cables with a uniform cross section as shown in FIG. As shown, a cable ladder (L) is used, which has a combination of a master beam (71) and a child beam (72), and on which a cable can be placed.

To lay a cable using such a cable ladder (L), use the cable (C) as shown in the figure.
from the end onto the cable ladder (L), and the worker moves the cable (C) up the cable ladder (L) while moving from place to place.
) and the method of sequentially drawing it into the
As shown in the figure, a worker moves the Metsenger rope (R) from one end to the other while passing it over the cable ladder (L).
) and connect the end of the cable (C) to the cable ladder (1
, ) placed at the other end of the metsenger rope (R)
A method was adopted in which the cable (C) was drawn into the cable ladder (L) by winding it up with traction 1R (llI).

(Problem to be solved by the invention) However, in the case of the cable laying method shown in Fig. 29, the cable ladder (L) installed at a high place
It takes multiple workers to pull the cable (C) into the interior, and the workers have to move from place to place to pull the cable (C) in, and they also have to suspend the cable ladder (L). There was a problem in that the installation work of the hanging bolts (B) or cables (C) being installed was obstructed, making the work time-consuming.

In addition, in the case of the cable installation method shown in Fig. 30 and Fig. 31, when passing the Messenger rope (11) over the cable ladder (L), it is necessary to carry out the work with the Messenger rope (R). It is very troublesome for the staff to move from one end of the cable ladder (L) to the other end one by one, and, like above, the suspension bolts that suspend the cable ladder (15) are very troublesome. There was a problem in that (B) became an obstacle when passing the Metsenger rope (R) over the cable ladder (L), making the work time-consuming.

As described above, when attempting to lay the cable (C) using the conventional cable ladder (L), the work is difficult and takes time and effort.

Moreover, the above-mentioned operational problems may also occur when attempting to install a new cable (C) in addition to an existing cable ladder (L).

The present invention has been developed in view of the above circumstances, and allows the cable laying work to be carried out more efficiently and with fewer workers than the conventionally used cable ladders, and it also makes it possible to install the cables in the existing cable ladders. It is an object of the present invention to provide a cable laying device and a tool used therefor which are convenient even when performing additional cable laying work.

(Means for Solving the Problems) In order to solve the above problems, the invention according to claim 1 provides: r a hollow shooter having an attachment portion to the cable ladder on the right side and having a slit continuous in the axial direction; A cable laying device 1 is characterized in that it consists of a cable laying tool that is inserted into the chute and includes a shuttle and a rope for connecting a cable or a spare rope for pulling the cable.

A second aspect of the invention as a device used in the cable laying device is a hollow chute J having an attachment portion to the cable ladder and having a slit continuous in the axial direction.

(Function) In the cable laying device according to the invention as claimed in claim 1, by attaching the chute to the existing or existing cable ladder, the cable laying device can be installed as shown in FIG. 1I to FIG. 15 or as shown in FIG. The cable installation work can now proceed as shown in Figures up to Figure 22.

That is, as shown in Fig. 11, the cable ladder (L)
Attach the chute (2) to the chute (2), and then feed the shuttle (4), which is a cable laying tool, and the rope (5) into the chute (1) as shown in Fig. 12. ) through a connecting loaf (61), etc., and then, as shown in Figure 14, pull the rope (5) to pull back the shuttle (4) and insert the cable into the cable ladder (L). (C), and as shown in FIG. 15, the cable (C) can be removed from the shuttle (4) and the cable (C) can be laid.

In addition, the cable (
If C) is relatively heavy, attach the chute (1) to the cable ladder (L) as shown in No. 16 (J), and install the cable laying equipment inside the chute (1) as shown in Figure 17. A certain shuttle (4) and rope (5) are sent in, and then a spare rope (62) is connected to the shuttle (4) as shown in FIG. 18, and a rope (62) is connected to the shuttle (4) as shown in FIG.
5) to pull back the shuttle (4) and attach the spare rope (62) to the cable ladder (1) as shown in Figure 20.
Then, as shown in Fig. 21, the cable (C) is connected to the spare rope (62), and the spare rope (62) is pulled by the traction machine (80) to the cable ladder (
The cable (C) can be laid by pulling the cable (C) into the cable L) and removing the cable (C) from the f-m rope (62) as shown in FIG.

At this time, the chute (1) acts as a guide when sending in and pulling back the cable installation equipment equipped with the shuttle (4) and the rope (5), and the chute (1)
The slit provided in the shuttle (4) and the cable (C) or the spare rope (6
2), connect the shuttle (0 to the shooter (1)
It is designed to be able to be moved within the

When such a cable laying device is used, the work of laying the cable (C) can be easily carried out without being affected by the hanging bolt (R) used for installing the cable ladder (L).

Further, the shooter according to the second aspect of the invention is suitable as an instrument for use in the cable installation device. This chute has an attachment part to the cable ladder (L) and can be removed from the cable ladder (1,), so it can be reused.

(Example) Hereinafter, the cable cloth y described in claim 1 or 2! Examples of the device and the shooter used therein will be described.

As shown in Fig. 6, the chute (1) used in the cable laying device is hollow in order to pass the cable laying equipment shuttle (4) and rope (5), and is made of metal or resin. It is manufactured by extrusion molding, press processing, etc.

Such a shooter (1) includes a shuttle (4) and a rope (
5) The cross section may be circular, square, or any other shape as long as it can be inserted.

As shown in Figures 1, 3, 4, 9, and 10, the chute (1) has a slit (
2) is provided. This slit (2) connects the shuttle (4) and cable (C).
4) within the chute (1), or to move the shuttle (4) within the chute (1) with the shuttle (4) and the reserve rope (62) connected. be. Specifically, as shown in FIG. 6, a plate-shaped extending member (4) extending to the side of the shuttle (4) and having a connecting hole (42), and a cable as shown in FIG. A plate-shaped extending member (41) equipped with a pedestal (44) and a first
As shown in Figure 0, hang the cable (C) from the suspension holding part (47
) with a plate-shaped extension member (41) etc.
) The slit (2) is necessary to allow the shuttle (4) to protrude outward and move the shuttle (4) within the chute (1) in this state. In addition, when connecting the connecting rope (61) and the spare rope (62) directly to the shuttle (4), the slit (2) is required to allow the connecting rope (61) and the spare rope (62) to pass through. .

In addition, the chute (1) is provided with an attachment part (3) to the cable ladder CL), which can be attached to the side wall or bottom wall of the cable ladder (L), or to the main girder (71) or child girder (72). It is now possible to

In the case of the embodiment shown in FIG.
) is provided with a mounting hole (II) through which the screw (51) is inserted, and the screw (51) is inserted into the side wall of the cable ladder (L).
+L: As shown in FIG. 2, the chute (1) is installed.

In addition, in the case of the embodiment shown in FIG. 3, the shooter (1)
A mounting portion (3) is formed by protruding a locking rib along the axial direction, and a stopper (52) having a hook portion for the locking rib and into which a bolt (53) is screwed is formed. The chute (1) is attached to the child beam (72) of the cable ladder (L) by tightening the bolt (53).

In addition, as shown in Figure 9 and Figure 1O, the attachment part (3) can be attached to the lower girder (72) of the cable ladder (I,) or the bottom wall with bolts (54) and nuts (55). The attachment can be obtained by providing four parts on the chute (1) that can be fitted into the child girder (72) of the cable ladder (shi), fitting these four parts into the child girder (72), and then fixing them with screws. Or, alternatively, the cable ladder (1,) is made by providing holes or grooves in the chute (1) for inserting binding wires such as wires.
For example, #! 4
As shown in the figure, attachment may be achieved by fitting into the recess (73) of the main girder (7).

Note that the mounting part (3) of the chute (+) is not removable so that the mounting position of the chute (1) on the cable ladder (]4) can be easily changed when installing another cable. It is desirable that the structure be easy.

Such a chute (1) is about several meters long,
Alternatively, it is manufactured according to the length of the cable ladder (L).

It is preferable that the shooter (1) has a structure that can be connected to each other. For example, in the case of the chute (1) shown in FIG. 3, as shown in FIG.
They can be interconnected with a connector (15) having a screw attachment hole (16). With this connection structure, the slit (2) provided with the chute (1) can be reliably fixed in a continuous state without shifting its position.

Next, the shuttle (4) is inserted into the chute (1).
) is used to connect a cable or a spare rope for pulling the cable, and its shape can be cylindrical or spindle-shaped. In order to ensure smooth insertion into the chute (1), it is desirable to have a cylindrical shape with a spindle-shaped tip as shown in FIG.

It is also desirable that it be lightweight. Note that shapes other than those described above may be used.

Furthermore, in the case of the embodiment shown in FIG. 6 as a structure for connecting a cable or a spare rope for pulling the cable, a plate-shaped extending member (41) having a connecting hole (42) is provided on the side. The cables (C) are connected by a connecting rope (δ1) that is extended and inserted through the connecting hole (42), or a spare rope (62) for pulling the cable (C) is connected to the connecting hole (42).
) to connect the cable (C). In addition, in the case shown in FIG. 9, a cable holder (44) for storing and fixing the cable (C) is installed on the top of a plate-shaped extension member (41) extending to the side of the shuttle (4). The shuttle (4) and cable (C) can be connected by placing the cable (C) on the cable holder (44) and fixing it with the connecting rope (61) inserted through the connecting hole (46). It is possible to connect them. Also, the 10th
In the case shown in the figure, there is a suspension holding part (47) that fixes the cable (C) in a suspended state on the upper part of a plate-shaped extension member (41) that extends to the side of the shuttle (4). The shuttle (4) and the cable can be connected by fixing the cable (C) in a suspended state with a connecting rope (6]) inserted through the connecting hole (48).

As a structure for connecting the cable or a spare rope for pulling the cable, as described above, the shuttle (4) is used.
The shuttle (
4) Connecting rope (61) or spare rope (6) to itself
2) may be directly connected to connect the cable (C).

Regarding the shuttle (4) equipped with the extending member (41), the shape of the extending member (40) provided in the shuttle (4) also differs depending on the position of the slit (2) provided in the shooter (1). , a shooter as shown in Figure 8 (
In the case of 1), the extension member (4I) is extended in an angular shape.
) is used.

Furthermore, in order to reduce the resistance when moving the shuttle (4) within the chute (1), the extending member (41) of the shuttle (4) has a slit ( 2) A roller (43) running inside the cable ladder (43) may be provided, or a roller (43) may be provided that rotates while contacting the side wall of the cable ladder (L) as shown in FIG.

The rope (5) is connected to the shuttle (4) and has enough rigidity to be pushed into the chute (1) by itself, and has enough breaking strength to withstand the tension applied when the cable (C) is pulled in. It is better to be prepared. Such a rope (5) may be, for example, a steel wire or a braided steel wire, or a rod-shaped rope made of extruded synthetic resin, or a synthetic resin m! There are also those made by tightly twisting I. Further, it is desirable that the rope (5) is lightweight.

Even when the shuttle (4) and the rope (5) are made integrally at the tip of the rope (5),
Alternatively, the shuttle (4) and the rope (5), which are each produced separately, may be connected.

The spare rope (62) is for pulling the cable (C), and is passed over the cable ladder (L), and is similar to a conventional messenger rope. When the cable (C) to be laid on the cable ladder (L) is relatively heavy, it is convenient to use such a spare rope (62).

Therefore, by using the cable installation device,
The cable (C) is drawn into the cable ladder (L) as shown in Fig. 23, and the cable (C) is pulled in as shown in Figs. 11 to 15 or as shown in Figs. 16 to 22. (C) can be installed. At this time,
As shown in Figure 23, the cable (C) is pulled into the cable ladder (L) regardless of the hanging bolt (B) attached to the wall (W) to suspend the cable ladder (L). I can do it.

In the embodiment shown in FIG. 9, rail members (I2) are provided on both sides of the chute (1) attached to the child beam (72) of the cable ladder (L), and the shuttle (I2) is mounted on this rail member (12). The cable is fixed to the cable cradle (44) by mounting the wheel (45) with the shaft passing through the extension member (41) in 4) and running the wheel (23) on the rail member (24). (C) is designed to be drawn in. In addition, in the embodiment shown in FIG. 10, the hanging holding part (47)
The cable (C) is fixed in a suspended state and pulled in.

In addition, when attaching the chute (1) as shown in Fig. 3 to an existing cable ladder (L), install rollers (73) at appropriate locations on the cable ladder (L) in advance as shown in Fig. 24. If you install the chute (1) on the cable ladder (L) and install it by sliding it on the roller (73) as shown in Figure 25 (shown in Figure 25), the chute (1) The installation work can be carried out easily.In order to further improve the sliding of the chute (1), it is preferable to use a roller (73) that is divided into a plurality of parts.

In addition, when laying the cable (C), for example, as shown in the 26th subsection, an extension member (41) having a plurality of connecting holes (42) is provided on both side walls of the cable ladder (L). The cable is fixed to the shuttle (4) that is inserted into the chute (1) to create an erected state, and the connecting rope (61) is inserted through each of the plurality of connecting holes (42) provided in the extension member (41). A large number of cables (C) can be laid at once by connecting cables (C) and pulling the rope (5) passing through the chute (1).

(Effects of the Invention) As explained above, by attaching the cable installation device according to the invention set forth in claim 1 to an existing cable ladder, the cable installation device according to the invention as claimed in claim 1 can be installed without being affected by the hanging bolts used for installing the cable ladder. The installation work can be carried out easily. That is, by being at the end of the chute and pulling the rope, the cable connected to the shuttle or the reserve rope for pulling the cable can be drawn onto the cable ladder. Therefore, compared to the conventional cable installation work in which cables are laid through hanging bolts and metsenger ropes are passed over cable ladders, the cable installation work can be made more efficient and requires less work. What the workers can do.

Further, even when a new cable is to be installed in addition to an existing cable ladder, the cable installation work can be carried out efficiently by using the above cable installation device.

Further, the chute according to the invention as claimed in claim 2 is suitable as a device to be used in the above-mentioned cable laying device, and since this chute can be removed from the cable ladder, it can be reused in another cable laying work. It is possible and economical.

[Brief explanation of drawings]

1 and 2 show an embodiment of the shooter according to claims 1 and 2, FIG. 1 is a perspective view showing the state before being attached to the cable ladder, and FIG. 2 is a perspective view showing the state before being attached to the cable ladder. FIG. 3 is a perspective view showing another embodiment of the chute, FIG. 4 is a perspective view showing still another embodiment of the chute, and FIG. FIG. 6 is an exploded perspective view showing the structure; FIG. 6 is a perspective view showing the cable laying equipment inserted into the chute; FIGS. 7 and 8 are perspective views showing other embodiments of the cable laying equipment; FIG. 9 10 is a perspective view showing a cable laying equipment provided with a cable holder, FIG. 10 is a perspective view showing a cable laying equipment provided with a hanging holding part,
Figures 11 to 15 show 41 steps to install cables!
Figures 16 to 22 are side views schematically showing the procedure for laying cables using spare ropes, Figure 23 is a front view showing four cable installation states, and Figures Figure 24 is a perspective view showing the cable ladder with rollers attached, Figure 25 is a perspective view showing the working state of laying chutes on the cable ladder shown in Figure 24, and Figure 26 is a perspective view showing how many cables are laid at once. Figures 27 and 28 are perspective views showing a conventional cable ladder, and Figures 29 to 31 are side views showing a cable laying method using a conventional cable ladder. It is a diagram. Explanation of symbols 2...Slit 4...Shuttle 62...Spare loaf C...Cable W-...Wall 1...Shooter 3...Attachment part 5...Loaf B-...Hanging Bolt L...Cable ladder

Claims (1)

[Claims] 1) A hollow chute having an attachment part to a cable ladder and having a slit continuous in the axial direction, and a cable or a spare rope inserted into the chute for pulling the cable connected. A cable installation device comprising: a cable installation device equipped with a shuttle and a rope for installing a cable; 2) A hollow shooter with an attachment part to the cable ladder and a continuous slit in the axial direction.