JPH05292618A - Cord wiring method and cord winder - Google Patents

Abstract

PURPOSE:To make it possible to wire cords in a limited space with reduced number of workers by a method wherein a guide wire and a cord connected therewith are wound around a reel and led out, and then the reel is rotated reversely in order to wire the cord, thus wound, upto a desired position. CONSTITUTION:A large reel 3 for winding a cord straight from a connecting conduit is disposed in front of the opening of the connecting conduit on the lead-out side, and a guide wire previously passed through the connecting conduit having end thereof wound around a reel 3 is connected with a cord to be wired at the end thereof. The reel 3 is then rotated to wind the guide wire and the cord connected therewith around the reel 3 and to lead out the cord temporarily. Upon finish of lead out, the reel 3 is rotated reversely in order to wire the cord, thus wound, upto a desired position spaced apart therefrom. This method realizes wiring of cord even in a limited space, e.g. manhole in an urban district, with reduced number of workers without causing any hindrance in traffic.

Description

Detailed Description of the Invention

[0001]

[Industrial application] This invention is a thick wire (diameter 20mm
The present invention relates to a construction method for arranging a cord such as an electric cord (about a certain degree or more) and a cord winding device for winding the cord by power, which is useful for implementing the method.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of aesthetics and safety, high-voltage electric wires in urban areas or factories are often installed underground by burying a pipeline in the underground. .. As described above, when a high-voltage electric cord is installed in a conduit buried underground, generally, as shown in FIG. 5, at a position separated from a manhole M which is a connecting conduit to the ground, A track T is arranged, and one end of the guide-guiding wire W is connected to this track T, and the other end is connected to the tip of an electric cord C sent out through a conduit R in which the other end is arranged. While advancing the truck T in the direction of the arrow F in conformity with the speed, an operator is arranged at each L-shaped connecting portion (each bending portion) between the manhole and the pipe to prevent the manhole from being caught by the connecting portion. It is subsidized according to the delivery speed, and it is arranged slowly. At this time, a carrier roller 20 for transporting the pulled-out electric cord is arranged on the road surface so that the electric cord does not come into contact with and damage the road surface.

Then, the electric cord C which is temporarily drawn onto the carrier roller 20 is re-arranged up to an instrument or the like at a predetermined portion.

[0004]

However, in the case of the above construction method, a very large space is required for running the truck on the ground and temporarily mounting the electric cord, and each L-shaped connecting portion is required. Needs a lot of workers to deploy. Furthermore, this construction method, as described above,
Since it is a joint work of many people, such as sending out the electric cord, subsidizing each worker, and making the pulling speed of the truck at the same speed, a lot of labor and a very long construction time are required.

Further, in the case of the above-mentioned construction method, as described above, construction is possible because a very large space in plan is required for running the truck and temporarily placing the pulled-out electric cord. The place will be limited. In addition, even if it can be constructed, smooth traffic will be hindered if the site is an urban area.

Further, in the case of an electric cord, particularly an electric cord having a large diameter as the subject of the present invention, a delicate coating layer for insulation and magnetic shielding is caused by its large mass per unit length. Is susceptible to damage, which requires a fairly delicate handling for installation work, but in the case of the above construction method, the driving force of the truck is used and the pulling speed of the cord is operated in the rack driver's seat. Therefore, it is impossible to stop the withdrawal, pull out at an extremely low speed, or delicately control the speed, which makes it difficult to delicately send out the electric cord.

The present invention has been made in view of the above-mentioned various inconveniences, and an object thereof is to provide a cord arranging construction method which does not have the above-mentioned inconveniences, and a cord winding device used in the construction method. ..

[0008]

SUMMARY OF THE INVENTION A cord arranging construction method according to the present invention is provided with a pipe line which is vertically or horizontally displaced from a reference line and a connecting pipe which is bent into an L-shape and is connected to the pipe line. In a cord arranging construction method for arranging a cord to a passage and a position separated from the connecting pipe by a desired distance, the cord is connected to the front of the opening of the pipe on the pulling side of the connecting pipe from the connecting pipe. A large-diameter reel is arranged so that it can be wound straightly, and the base end is wound around this reel, and the connecting pipe and the guide wire that passes through the pipe in advance and the tip of the cord to be placed from now on. By connecting and rotating the reel, the guide wire and the cord connected to the guide wire are temporarily wound on the reel and pulled out, and after the pulling out is completed, the reel is reversed and the wound cord is wound. Characterized by arranging to a desired spaced locations.

The cord winding device according to the present invention is a power type cord winding device that winds a cord around a reel by supporting the reel with a reel support shaft and rotating the cord with power. However, the left and right support members are separately configured, the reel support shaft mounted on the support member, the large-diameter reel rotatably supported by the reel support shaft, and the reel support shaft integrated with the reel. Also, a drive unit having a driven wheel in the form of a rotating wheel that is concentrically arranged, a drive wheel that is formed separately from the support member and is driven by a drive device, and a variable-speed drive that applies power to the drive unit. It is characterized by comprising a device and a transmission belt body for connecting and driving the driven wheel and the driving wheel.

[0010]

According to the cord arranging construction method of the present invention, however, the large-diameter reel arranged as described above in front of the opening of the L-shaped connecting conduit is used, if necessary, by using a drive unit or the like. When rotated, the cord can be easily wound up onto the reel following the guide wire from a straight direction along the connecting conduit, and the provisionally wound cord is not bulky and damaged. Instead, it can be held on the outer circumference of the reel. Then, when the pulling out is completed, that is, the arrangement of the cord in the conduit is completed, the cord temporarily wound on the reel is reversed to reverse the reel to unwind the wound cord to a desired separated position. Can be installed up to.

At this time, in terms of space, if there is a space for reels (reet and drive unit if necessary) around the opening of the connecting pipe line in the reference line where the cord is pulled out. Good.

Further, according to the cord winding device of the present invention, in the above-mentioned cord arranging construction method, at the work site of the opening portion of the connecting conduit, the reel having the left and right support members passing through the reel with the driven wheels is passed. By mounting the support shaft, disposing the driving unit and the driving device at predetermined positions, and connecting the driving wheel of the driving unit and the driven wheel by the transmission belt, the reel can be wound. At the time of this winding, by operating a driving device arranged near the reel, delicate control such as starting and stopping the rotation of the reel and adjusting the speed can be performed at the opening of the connection conduit. ..

Further, according to this cord winding device, the support member, the reel support shaft, the reel, the drive unit, the drive device, the transmission belt member, etc. can be separately disassembled and transported to the work site. ..

[0014]

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

FIG. 1 is a perspective view showing the overall construction of a winding device according to an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is an explanation of a cord arranging construction method according to an embodiment of the present invention. FIG. 3 is a schematic side sectional view of a construction site for the purpose.

In FIGS. 1 and 2, 1 is a support member having the same structure on the left and right sides, 2 is a reel support shaft supported on the upper end of the support member 1, and 3 is a large diameter supported on the reel support shaft 2. In this embodiment, a reel of about 1.2 m), 4 is a driven wheel in the form of a rotating wheel which is integrally and concentrically arranged on the reel 3, and 5 is a drive unit having a driving wheel for rotating the reel 3.

As shown in FIG. 1, the support member 1 is
Is a vertical member 1b having a semi-cylindrical support portion 1a at its upper end and its lower end fixed to a base member 1A, and an inclined member 1c arranged between these members. A stable forming member 1B made of H-shaped steel of the same size is integrally fixed to both ends of a lower end base member 1A made of H-shaped steel so that the longitudinal axes thereof are orthogonal to each other. A coupling hole 7 for screwing into a coupling member 6 described below is formed in the lower flange portion of the.

The connecting member 6 for integrally connecting the left and right support members 1 is also made of H-shaped steel having the same size as the base member 1B, and the connecting hole 7 is formed in the connecting member 6.
Is formed with a coupling hole (not shown).

The reel support shaft 2 is composed of a slightly thick round pipe, and both ends of the reel support shaft 2 are
In order to prevent the reel support shaft 2 from dropping off in the axial direction from the support portion 1a formed on the support member 1, a disc-shaped collar portion 2a having a diameter larger than that of the reel support shaft 2 is formed.

The reel 3 has a cylindrical body portion 3a.
Collar members 3b extending in the radial direction are integrally formed at both ends of the cord so as to prevent the cord from dropping toward both ends.

The driven wheel 4 is concentrically attached to the reel 3 integrally with a plurality of bolts. A U-shaped groove is formed on the outer peripheral surface of the driven wheel 4.

In the case of this embodiment, the drive unit 5 is
A frame 5a having an external trapezoidal shape made of chevron steel or grooved steel is provided, and caster wheels 8 are arranged at the four corners of the front surface (the surface on the right side in FIG. 1) of the frame 5a. A winch 9A having a speed reduction mechanism is arranged in the space inside the frame 5a, and a similar winch 9B is arranged on the upper surface of the trapezoidal frame 5a. In this embodiment, the body portions 9a and 9b of the winches 9A and 9B form the driving wheels. Further, outside the driving wheels, outer body portions 9a 'and 9b' functioning as auxiliary reels are coaxially formed.

A gate-shaped member 5b is disposed on the sloped portion of the frame 5a on the side of the connecting member 6, and the gate-shaped member 5b is provided.
A steel bar 5c is screwed on the upper part of 5b toward the winches 9A and 9B side so that the length thereof can be freely adjusted, and a pulley 10 is locked to the tip of the steel bar 5c.

Further, on the side of the connecting member 6 of the gate-shaped member 5b of the frame 5a, there is formed an engaging portion 5d for holding and engaging the flange portion of the H-shaped steel forming the connecting member 6 from above and below. Further, a roller 12 for supporting the driving wire 11 as a transmission band downward is rotatably arranged at the left end of the engaging portion 5d. This roller 12 is, as shown in FIG.
In the assembled state of the winding device, the roller 12 from the line connecting the driven wheel 4 and the body 9a of the winch 9A.
Is arranged so that the lower end of the peripheral surface is located below.

Further, the drive unit 5 requires a drive device as a drive source, but in this embodiment, as shown in FIG. 1, a two-stage structure provided on the side of the drive unit 5 is used. Install a commercially available forward / reverse rotary stepless speed type electric drill 13 on the rack 15 rack of No. 2 corresponding to the winches 9A and 9B.
Place the table, the rotary shaft of these electric drills 13 and winch 9
The universal joint 14 is connected to the input shafts of A and 9B to drive them.

Thus, the winding device thus constructed is used as follows in the cord disposing work. When the winding device is stored in a warehouse or transported by a truck or the like, the left and right support members 1, reel support shaft 2, reel 3, driven wheel 4, drive unit 5, coupling member 6, The drive unit 5, which is one of the heaviest ones in weight, can be provided with the electric drills 13 and the like separately, and the caster wheel 8 is used.
Can be easily moved by.

In use, first, if necessary, a base material 15 such as wood or H-shaped steel is placed at a predetermined position below, that is, above the opening of the manhole (connection conduit) in this embodiment. The reel 3 is arranged in such a manner that the winding end portion of the reel 3 is positioned, and the coupling members 6 are arranged in parallel on the base material 15 at a predetermined interval. Then, the left and right support members 1 are erected on the coupling member 6 so as to face each other with a predetermined gap. At this time, since the supporting member 1 includes the stability forming member 1B, it is not necessary for the supporting member 1 to stand by itself and be held by the operator.

Next, the reel support shaft 2 is passed through the reel 2 integrally provided with the driven wheels 4 at another adjacent position, and both ends of the reel support shaft 2 are gripped to support the support member 1. Place on part 1a. At this time, since the supporting portion 1a is formed in a semi-cylindrical shape, it can be easily placed from above. In addition, since the flange portions 2a are formed at both ends of the reel support shaft 2 as described above in the state where the reel support shaft 2 is mounted on the support portion 1a in this manner, the reel support shaft 2 may fall off in the axial longitudinal direction. Moreover, since the supporting portion 1a itself has a semi-cylindrical shape, it does not fall off in the direction orthogonal to the axis. Then, the drive unit 5 is moved to the side of the one coupling member 6 shown in FIG. 1 by the caster wheel 8 and is turned over in a predetermined direction (left side in FIG. 1) here. Then, the engaging member 5d of the drive unit 5
Is engaged with the flange portion of the H-shaped steel forming the coupling member 6. At this time, the U-shaped groove of the driven wheel 4 and the body portion of the drive wire 11 of the winches 9A and 9B are aligned in the front direction (the direction viewed from the right side in FIG. 1).
If necessary, the drive unit 5 may be fastened to the coupling member 6 with a bolt or the like at this time.

Then, in this state, the driven wheel 4 is
Side reel support shaft 2 is slightly lifted from the flange portion 2a, and winches 9A and 9B and pulleys are preliminarily provided as shown in FIG. 1 or 2.
A part of the driving wire 11 wound around 10 is unwound and wound around the U-shaped groove of the driven wheel 4 once or a plurality of times as necessary as shown in FIG. 1 or 2. To do. Then, the tension state of the drive wire 11 is adjusted by screwing the length of the steel bar 5c.

Finally, a rack 15 on which an electric drill 13 corresponding to the winches 9A and 9B is mounted is arranged beside the winches 9A and 9B, and a universal joint is provided between the shafts.
The assembly is completed by connecting via 14.

The winding device assembled as described above is used as follows when carrying out the cord disposing work method according to the present invention.

That is, as shown in FIG. 3, the guide wire W having the proximal end attached to the winding device is placed in the manhole M where the electric cord is to be arranged, the underground conduit R, and the manhole M. It is inserted and connected to the tip of the electric cord C wound around the reel 3'on the ground.

At this time, a pulley Q is arranged in a portion where the manhole M and the conduit R intersect at right angles, as shown in FIG.

Then, in this state, the switch of the electric drill 13 which is the driving device of the winding device is turned on to rotate the reel 3 of the winding device counterclockwise in FIGS. 1 and 2. At this time, delicate control becomes possible by starting and stopping the rotation of the electric drill 13 and appropriately adjusting and operating the rotation speed according to the working situation.

By this rotation, the guide wire W is wound around the reel 3 and the electric cord C wound around the reel 3'is inserted into the conduit R, at this time. When passing through the L-shaped connecting portion between the manhole M and the pipe R, the vehicle will be smoothly guided by the pulley Q.

When this state is continued and the tip of the electric cord C is wound on the reel 3 by a predetermined length, the electric drill 13 is turned off and the winding device is stopped.

Next, the reel 3 of the winding device is reversed by hand or by using the electric drill 13, the electric cord C wound on the reel 3 is unwound, and piped to a predetermined device or the like. In this way, when the electric cord arranging work is carried out, the worker, regardless of the length of the conduit R, operates the winding device, monitors the delivery of the reel 3 ', and the conduit. It can be performed by only at least 3 people who will monitor in R.

Also in terms of space, there is a space for arranging the winding device in the opening of the manhole on the pull-out side and a space for arranging the reel 3'on which the electric cord is wound in the opening of the manhole on the feed-out side. All that is required is that the installation work can be performed even in a narrow place.

Further, as described above, the present winding device is also very organically divided into the respective parts, and each of the parts is very convenient for assembling. Since it is divided so that it has an appropriate weight that can be held by workers, it can be easily transported and assembled without using a crane truck, and even a small number of people can easily perform construction. .. Concretely, it can be done with at least three workers, which required a dozen people in the past, and it should be done in a space that is dramatically smaller than the conventional one (about 1/10 or less). You can

By the way, this winding device can be wound at a very high speed by winding the rope around the outer body portions 9a ', 9b' functioning as the above-mentioned auxiliary reels when the rope or the like is to be wound up quickly. You can also take it.

As described above, this winding device is used to rotate the driven wheel 4 in the counterclockwise direction in FIG. 2 in the above-mentioned winding operation requiring a large driving force of the reel. Therefore, the roller 12 disposed at the engaging portion between the drive unit 5 and the coupling member 6 is disposed.
Further, as a result of the tension of the drive wire 11 acting upward, the right end side of the drive unit 5 in FIG. 2 is pushed down. As a result, the engaging portion between the coupling member 6 and the drive unit 5 need only be coupled relatively easily.

Further, in the present embodiment, since the drive wire is used as the transmission band body, an appropriate slip is generated in the drive. Therefore, even if two electric drills are used, these are strictly synchronized. There is no need to consider. Therefore, even if it is necessary to increase the driving force, it is sufficient to increase the number of winches and electric drills, which can be performed very easily.

In the above embodiment, two winches are provided,
Although two electric drills are used, one electric drill or two or more electric drills may be used as required. Further, in the present embodiment, the drive wire is used as the power transmission band, but instead of this, a chain may be used, or a flat belt or an equivalent thereof may be used. In such a case, a mechanism corresponding to the driven wheel, that is, a sprocket, a pulley or the like will be used.

Further, in the above embodiment, the reel 3
In place of the reel 3, an existing wooden or metal reel around which a new wire is wound can be used.

[0045]

According to the cord disposing work method of the present invention, cords such as large-diameter electric cords can be easily performed by a small number of people in a short time, and the necessary space is required. As long as there is a space for arranging the reel (winding device), the cord can be arranged in a much smaller space than the conventional one.

Therefore, according to the cord arranging construction method of the present invention, it can be carried out at a significantly lower cost than the conventional method, and it can be carried out even in a narrow place which could not be carried out conventionally. Moreover, even if it is carried out in the urban area, it will not cause any trouble to the traffic.

Further, according to the cord winding device of the present invention, since it is compact as a whole, it can be used even in a narrow field, and if it is disassembled, it becomes very compact and can be stored and transported. As it becomes easier
When used, it can be easily assembled on site.

The cord winding device can use a commercially available forward / reverse stepless type electric drill as a driving device. In this case, very delicate control depending on the working situation can be made inexpensive. ..

Further, in the present cord winding device, since the operation related to the rotation of the reel can be performed by the driving device arranged near the reel, even when the above-mentioned construction method is carried out, the delicate control that matches the working situation is performed. It becomes possible to carry out while watching.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a winding device according to an embodiment of the present invention.

FIG. 2 is a side view of the winding device shown in FIG.

FIG. 3 is a schematic side sectional view of a work site for explaining a construction method according to an embodiment of the present invention.

FIG. 4 is an enlarged side view of the pulley portion shown in FIG.

FIG. 5 is a schematic side sectional view showing a conventional construction method.

[Explanation of symbols]

 1 ... Support member 2 ... Reel support shaft 3 ... Reel 4 ... Driven wheel 5 ... Drive unit 9a, 9b ... Body (driving wheel) 11 ... Drive wire (Transmission belt)

Claims (2)

[Claims] 1. A pipe line formed to be displaced vertically or horizontally from a reference line, a connection pipe line bent and connected to the pipe line in an L shape, and a position separated from the connection pipe line by a desired distance. In the cord arranging construction method for arranging cords, a large-diameter reel that is rotatable so that the cord can be straightly wound from the connecting pipe is arranged in front of the opening of the pipe on the pulling side of the connecting pipes. Then, the base end is wound around this reel, the connecting wire is connected to the guide wire that has passed through the conduit in advance, and the tip of the cord to be disposed is connected, and the reel is rotated to form the guide wire. The cord connected to it is temporarily wound around the reel and pulled out, and after the pulling out is completed, the reel is reversed to arrange the wound cord up to a desired separated position. De arrangement construction method. 2. A power-type cord winding device that winds a cord around a reel by supporting the reel with a reel support shaft and rotating the power with a power, wherein the cord winding device is formed separately on the left and right sides. A support member, a reel support shaft mounted on the support member, a large-diameter reel rotatably supported by the reel support shaft, and a rotary ring shape integrally and concentrically arranged on the reel. Of the driven wheel, a drive unit having a driving wheel that is formed separately from the support member and driven by a driving device, a variable speed drive device that applies power to the driving unit, and the driven wheel and the driving wheel. A cord winding device comprising: a transmission belt body that is connected and driven.