JPH06233428A - Automatic cable pull-in system for laying cable - Google Patents

Abstract

PURPOSE:To lay a cable in safety by temporarily fixing a rope pulling machine and a rope tension adjuster, respectively, to the front and rear ends of a cable within a laying range, temporarily laying the rope into a loop through vertical guide rollers arranged at a predetermined interval, and then pulling the cable by means of hooks fixed to the rope. CONSTITUTION:A guide rope pulling machine 1 is installed temporarily at point B, i.e., the rear end of cable laying range of a structure, and a guide rope tension regulator 2 is installed temporarily at point A, i.e., the front end of the cable laying range. A plurality of guide rope rollers 3 are arranged on the upper side of cable laying path between the points A and 13 and a guide rope is entrained thereabout thus constituting a guide rope loop 4. A cable 08 is coupled, at the leading end 12 thereof, to a hook fixed to the guide rope loop 4 which is then driven through a motor pulling machine 07 thus pulling the cable 08 upto an exit. The operation is repeated and required number of cables 08 are lain in a conduit. This constitution allows highly efficient laying of cables even in a curved conduit with no possibility of danger.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic cable drawing apparatus for cable laying.

[0002]

2. Description of the Related Art For example, as an electric wire laying work in a ship, as shown in the side view of FIG.
The electric wire 08 fed out from the electric wire drum 06 via the electric wire traction machine 07 is placed on the lower surface of the electric wire 05 on the electric path 05 composed of the suspension member 02, the side girders 03, the horizontal girders 04, and the like.
It is known to pull in manually by the step 9.

However, such means have the following drawbacks. (1) Since the electric circuit 05 is generally installed at a height of 2 to 3 m above the lower deck 010, the worker 09 must use the stepladder 011 to pull in the electric wire 08 in an unstable posture. Therefore, there is room for consideration in terms of safety. (2) As shown in the perspective view (B) of the drawing, if the worker 09 is not careful enough to pull in the electric wire 08, the electric wire tip 012 will immediately deviate from the electric line 05 as shown by the broken line. Work is not easy and takes time,
Therefore, there is room for consideration in terms of labor saving and quickness.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of such circumstances, and there is little work in an unstable posture, the electric wire can be pulled in securely, and the work is easy. It is another object of the present invention to provide an automatic cable pulling device for cable laying, which requires only a short work time and is therefore excellent in safety, stability, labor saving and quickness. Another object of the present invention is to provide an automatic cable pulling device for cable laying, which has a simple rope pulling mechanism, is inexpensive to manufacture, and is therefore economical. Another object of the present invention is to provide an automatic cable pulling device for cable laying, which has a simple rope tension adjusting mechanism, is inexpensive to manufacture, and is therefore economical.

[0005]

To this end, the invention according to claim 1 provides a cable drawing apparatus for cable laying in which an electric wire fed from an electric wire drum through an electric wire traction machine is drawn onto an electric path attached to a structure. , A rope traction machine temporarily installed at the front end of the wire laying range, a rope tension adjuster temporarily installed at the rear end of the wire laying range, and between the rope traction machine and the rope tension adjuster as appropriate. A plurality of vertical rope guide rollers, which are arranged slightly above the electric path by the structure at intervals and have a circumferential groove, and are looped between the rope towing machine and the rope tension adjuster. The one side that has become a tensioned side is a guide rope stretched in a straight line with the side surfaces alternately contacting the plurality of vertical rope guide rollers, and the branch rope is interposed between the guide ropes. Characterized in that comprises a hook that is attached Te.

According to a second aspect of the present invention, in the first aspect of the invention, a plurality of rollers are wound around a drive roller fitted to an output shaft pivotally supported by the main body and arranged in a row in the front-rear direction. A first belt wound around the rope driving rollers in a loop, and a plurality of belts arranged in a row in the front-rear direction on the roller mount and urged toward the rows of the rope driving rollers via adjustment springs. It has a second belt that is endlessly wound around a rope driven press roller,
It is characterized in that it is equipped with a rope towing machine which moves the guide rope between the both belts by sandwiching the guide rope.

Further, in the invention of claim 3, in the invention of claim 1, front and rear grooved guide rollers pivotally attached to front and rear portions of the main body by pins projecting laterally respectively, and a central portion of one side of the main body. Lower friction plate that is attached to the central part and extends in the front-rear direction and the central part is bent upward, and upper friction plate that is attached to the central part on one side of the main body and that extends in the front-back direction and the central part is bent downward And a biasing means for pressing the one friction plate toward the other friction plate, and a rope tension adjuster for adjusting the tension by sandwiching the rope between the friction plates.

[0008]

According to this structure, the following actions are performed. According to the invention of claim 1, the rope towing machine temporarily installed at the front end of the wire laying range, the rope tension adjuster temporarily installed at the rear end of the wire laying range, the rope towing machine and the rope tension. Between the rope pulling machine and the rope tension adjuster, and a plurality of vertical rope guide rollers that are arranged slightly above the electric path by a structure at appropriate intervals with the adjuster and have a circumferential groove. One side that was looped around and became a tension side was a guide rope that was stretched in a straight line with the side surfaces alternately contacting the above vertical rope guide rollers, and the above guide rope via a branch rope. Since the attached hook is provided, the tip of the electric wire is automatically introduced into the electric line according to the guide rope loop.
Further, the tension of the guide rope loop can be adjusted by the guide rope tension adjuster, and it becomes possible to introduce various wire tips having different diameters, weights, and rigidity. Furthermore, the circumferential groove of the guide rope roller enables it to be used in a bent electric path or an electric path with a height difference. Then, the guide rope loop is looped around the guide rope towing machine and the guide rope tension adjuster, so that it is possible to sequentially draw in a plurality of electric wires. In addition, the tension side of the guide rope loop is pulled around the axis of each guide rope roller by alternately wrapping the sides around multiple guide rope rollers, making it difficult for the guide rope loop to come off from each guide rope roller. Become.
Further, since the electric wire pulling hook is attached to the guide rope loop via the branch rope, the hook can easily pass through the side surface of the guide rope roller. Further, the hook only needs to hold the tip of the electric wire, and the guide rope loop and the guide rope roller are reduced in size and weight. According to the invention of claim 2, in addition to the effect of claim 1, the rope pulling mechanism is simple and the manufacturing cost is low. According to the invention of claim 3, in addition to the effect of claim 1, the rope tension adjusting mechanism is simple and the manufacturing cost is low.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment in which the present invention is applied to an electric circuit 05 of the type shown in FIG. 4 will be described. The same reference numerals as those in FIG. 4 denote the same members as those in FIG. In the perspective view, 1 and 2 are electric wires 0 of the electric circuit 05, respectively.
The guide rope towing machine and the guide rope tension adjuster, which are temporarily installed at the front and rear ends of the area where 8 is laid, are arranged at appropriate intervals in the area where the electric wire 08 is laid, and the base ends are temporarily installed in the hull structure. The rope rollers 4 are endless guide rope loops that are sequentially wound around the guide rope towing machine 1, the guide rope tension adjuster 2, and a plurality of guide rope rollers 3, and are formed from the rope tension side and the rope relaxation side. ing.

Next, in the perspective view of FIG. 2 (A) showing the details of the guide rope towing machine 1, 5 is a flat box type right half of which the electric motor part 6, the gear part 7, and the output shaft 8 are sequentially arranged from the bottom side. Mounting hardware 9 to the side girder 03 of the electric circuit 05 in order from the bottom to the left half, a pair of bases 10 in the front and rear, a plurality of vertical rope driving rollers 11
Are provided respectively, and a belt 12 is wound around the output shaft 8 and each rope driving roller 11 to form a main body of the towing machine. Reference numeral 13 denotes a pressing roller mounting base that is slidably mounted in the left and right direction via a horizontal horizontal shaft 14 that extends from the respective bases 10 to the left and a helical pressure adjusting spring 15 that is externally mounted on the horizontal horizontal shaft 14. 16 is a plurality of vertical rope driven press rollers arranged side by side in the front-rear direction,
Reference numeral 16a denotes a belt wound around a plurality of rope driven pressing rollers 16, 17 denotes an opening / closing lever radially provided at the rear end of a vertical and horizontal shaft 18 pivotally supported at the lower left end of the base 10, and 19 denotes A pair of cams that are respectively fitted to the front and rear ends of the vertical and horizontal shafts 18 and can push out the pressing roller mounting base 13 to the left, and 20 is a top and bottom horizontally projecting from the upper part of each base 10 to the left. It is a pair of rope guide rollers with a towing machine.

Further, in the perspective view (B) of the figure showing the details of the guide rope tension adjuster 2, reference numeral 21 denotes an adjuster frame plate formed by attaching a horizontal member to the upper end of one surface of the vertical member,
Reference numeral 22 denotes a rope guide roller with an adjuster, which is rotatably supported on the lower front and rear ends of one surface of the frame plate 21 via horizontal pins. Reference numeral 23 denotes a sled-shaped lower friction plate which is attached to the lower center of one surface of the frame plate 21 and is convexly curved upward, 24 denotes a vertical adjustment screw which is screwed to the front and rear ends of a horizontal member of the frame plate 21, and 25 denotes an adjustment screw. The front and rear parts are welded to the lower end of a spring 26 coaxially connected to the lower end of 24, and the upper part is a sled-shaped upper friction plate that is convexly curved downward, and it is sandwiched between the two in cooperation with the lower friction plate 23. A frictional force can be applied to the guide rope loop 4 with an arbitrary strength.

In the perspective view of FIG. 3 (A), the front view of FIG. 3 (B), the side view of FIG. 3 (C) and the plan view of FIG. Mounting brackets and mounting bolts for temporarily installing the guide rope roller 3 on the hull structural member 29, and 30 are roller bodies pivotally supported on the tip of the mounting bracket 27 via vertical pins 31.
A circumferential groove 32 for guiding the guide rope loop 4 is provided around the upper portion thereof. Numeral 33 is a hook attached to the tip of a plurality of branch ropes 34 each of which has a suitable length and extends in a branch shape from a plurality of locations on the side surface of the guide rope loop 4 at appropriate intervals, and 35 is a connection for connecting the wire tip 012 and the hook 33. It is a rope.

In such an apparatus, as shown in FIG. 1, first, if the electric wire 08 is sent from the rear to the front through the point A by an electric wire drum and an electric wire traction machine 07 (not shown), the electric wire traction machine is once moved. After stopping 07, hook the connecting rope of the electric wire tip 012 on the hook 33 of the branch rope 34 attached to the left side of the guide rope loop 4, that is, on the tension side, and then operate the guide rope towing machine 1 and the electric wire towing machine 07. To do. Then, the electric wire tip 012 is guided by the guide rope loop 4 and advances along the electric path 05. When the electric wire tip 012 reaches the point B, the guide rope traction machine 1 and the electric wire traction machine 07 are stopped, and the branch rope Remove the connecting rope 35 at the wire end 012 from the hook 33 of 34, and
The work of pulling in the electric wire 08 of the first time is completed. By repeating this operation, it is possible to sequentially lay a plurality of electric wires 08 between the points A and B. The structures of the lower friction plate 23 and the upper friction plate 25 may be reversed. Further, the present invention can be applied not only to an electric wire but also to a cable such as a wire.

According to the apparatus of this embodiment, the following effects can be obtained. (1) A rope towing machine temporarily installed at the front end of the wire laying range, a rope tension adjuster temporarily installed at the rear end of the wire laying range, and between the rope towing machine and the rope tension adjuster. A plurality of vertical rope guide rollers, which are arranged a little above the electric circuit by a structure at appropriate intervals and have a circumferential groove, and are looped between the rope towing machine and the rope tension adjuster. The guide rope is stretched in a straight line with the side that alternates left and right alternately contacting the vertical rope guide rollers, and the hook attached to the guide rope through the branch rope. Since the wire is provided, the tip of the wire is automatically introduced into the electric path according to the guide rope loop, so that the work of laying the wire is labor-saving, safe, easy and quick. In addition, the tension of the guide rope loop can be adjusted by the guide rope tension adjuster, and it becomes possible to introduce various wire tips having different diameters, weights, and rigidity, thus improving the applicability of the apparatus. Furthermore, the circumferential groove of the guide rope roller allows it to be used in a bent electric path or an electric path with a height difference as shown in FIGS. 3 (C) and 3 (D), thus improving the applicability of the apparatus. The guide rope loop is looped between the guide rope towing machine and the guide rope tension adjuster, so that a plurality of electric wires can be sequentially drawn in, and thus the practicality of the device is improved. In addition, the tension side of the guide rope loop is pulled around the axis of each guide rope roller by alternately wrapping the sides around multiple guide rope rollers, making it difficult for the guide rope loop to come off from each guide rope roller. Therefore, the stability of the device is improved. Further, since the electric wire pulling hook is attached to the guide rope loop via the branch rope, the hook can easily pass through the side surface of the guide rope roller, thus improving the stability of the device. Further, the hook only needs to hold the tip of the electric wire, and the guide rope loop and the guide rope roller are reduced in size and weight, thus improving the economical efficiency of the apparatus.

(2) In addition to the requirement of (1) above, a plurality of ropes wound around a drive roller fitted to an output shaft pivotally supported by the main body and arranged in a row in the front-rear direction A first belt wound around the driving roller in a loop, and a plurality of ropes arranged in a row in the front-rear direction on the roller mount and urged toward the row of rope driving rollers via an adjusting spring. Since the driven press roller has a second belt that is endlessly wound around and a rope towing machine that holds the guide rope between the belts and moves it forward is provided, the action of (1) above is achieved. In addition, the rope traction mechanism is simple and the manufacturing cost is low, thus improving the economical efficiency of the device.

(3) In addition to the requirement of (1) above, the front and rear grooved guide rollers pivotally attached to the front and rear parts of the main body by pins projecting laterally, and the central part on one side of the main body A lower friction plate that is attached and extends in the front-rear direction and has a central portion that is bent upward, and an upper friction plate that is attached to one central portion of the main body and that extends in the front-rear direction and that has a central portion that is bent downward. Since there is a biasing means for pressing the one friction plate toward the other friction plate, and a rope tension adjuster for adjusting the tension by sandwiching the rope with both friction plates is provided, the above (1)
In addition to the above function, the rope tension adjusting mechanism is simple and the manufacturing cost is low, and thus the economical efficiency of the apparatus is improved.

[0017]

In summary, according to the invention of claim 1, in the cable drawing apparatus for cable laying, the electric wire drawn from the electric wire drum through the electric wire pulling machine is drawn onto the electric path attached to the structure. The rope traction machine temporarily installed at the front end of the laying range, the rope tension adjuster temporarily installed at the rear end of the laying range of the electric wire, and the above-mentioned rope tension adjuster at an appropriate interval between the rope traction machine and the rope tension adjuster. A plurality of vertical rope guide rollers, which are arranged slightly above the electric path by the structure and are provided with a circumferential groove, and are wound around in a loop between the rope towing machine and the rope tension adjuster. One side, which became the tension side, was attached to the above-mentioned guide ropes via branch ropes, and a guide rope that was stretched in a straight line with the sides alternately contacting the above-mentioned vertical rope guide rollers. Since it has a hook, the work in an unstable posture is less, the electric wire can be pulled in securely, the work is easy, and the work can be completed in a short time. Therefore, safety, stability, and labor saving can be achieved. Further, the present invention is extremely useful in the industry because it provides an automatic cable drawing device for cable laying which is excellent in speed.

According to the second aspect of the present invention, a plurality of rope driving members are wound around a driving roller fitted to an output shaft rotatably supported by the main body and arranged in a row in the front-rear direction. A first belt wound around the rollers in a loop, and a plurality of rope followers that are arranged in a row in the front-rear direction on the roller mount and are urged toward the row of rope driving rollers through an adjusting spring. In addition to the effect according to claim 1, the rope has a second belt that is endlessly wound around the pressing roller, and has a rope pulling machine that moves the rope forward with the guide rope sandwiched between the two belts. INDUSTRIAL APPLICABILITY The present invention is extremely useful industrially because it provides an automatic cable pulling device for cable laying which has a simple pulling mechanism, is inexpensive to manufacture, and is therefore economical.

Further, according to the third aspect of the invention, front and rear grooved guide rollers pivotally attached to the front and rear portions of the main body by pins projecting laterally respectively, and a guide roller attached to the central portion on one side of the main body. A lower friction plate that extends in the front-rear direction and has a central portion that is convexly curved upward; an upper friction plate that is attached to one central portion of the main body and that extends in the front-rear direction and that has a central portion that is convexly curved downward; By having a biasing means for pressing the friction plate of the other toward the other friction plate, and having a rope tension adjuster for adjusting the tension by sandwiching the rope with both friction plates,
In addition to the effect of the first aspect, the present invention is extremely useful industrially because it provides an automatic cable pulling device for cable laying, which has a simple rope tension adjusting mechanism, is inexpensive to manufacture, and is therefore economical.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment in which the present invention is applied to an electric circuit of the type shown in FIG.

2 (A) and (B) are partially enlarged perspective views showing the guide rope towing machine 1 and the guide rope tension adjuster 2 of FIG. 1, respectively.

3 (A), (B), (C), and (D) are a perspective view, a partial sectional front view, a usage guide side view, and a usage guide plan view, respectively, showing the guide rope roller 3 of FIG.

FIG. 4 shows a known electric wire laying procedure of a ship, (A),
(B) is a side view and a perspective view, respectively.

[Explanation of symbols]

 1 Guide Rope Traction Machine 2 Guide Rope Tension Adjuster 3 Guide Rope Roller 4 Guide Rope Loop 5 Traction Machine Main Body 6 Electric Motor Section 7 Gear Section 8 Output Shaft 9 Mounting Hardware 10 Base 11 Rope Driving Roller 12 Belt 13 Holding Roller Mounting Base 14 Horizontal Horizontal Axis 15 Pressure Adjusting Spring 16 Rope Follower Pressing Roller 16a Belt 17 Open / Close Lever 18 Vertical Horizontal Axis 19 Cam 20 Rope Guide Roller with Traction Machine 21 Frame Plate 22 Rope Guide Roller with Adjuster 23 Lower Friction Plate 24 Adjusting Screw 25 Upper friction plate 26 Spring 27 Mounting bracket 28 Mounting bolt 29 Hull structural member 30 Roller body 31 Vertical pin 32 Circumferential groove 33 Hook 34 Branch rope 35 Connection rope 02 Suspension member 03 Side girder 04 Horizontal girder 05 Electric path 07 Electric wire traction machine 08 Electric wire 012 Electric wire tip Point A Point B

Claims (3)

[Claims] 1. A cable drawing apparatus for laying a cable for drawing an electric wire unwound from an electric wire drum through an electric wire traction machine onto an electric path attached to a structure, wherein a rope is temporarily installed at a front end of a laying range of the electric wire. A tractor, a rope tension adjuster temporarily installed at the rear end of the laying range of the electric wire, and an appropriate interval between the rope tractor and the rope tension adjuster, and the structure above the electric path. A plurality of vertical rope guide rollers provided with circumferential grooves are provided, and one side that is wound around in a loop between the rope towing machine and the rope tension adjuster and becomes a tension side is the plurality of The present invention is characterized in that a vertical rope guide roller is provided with a guide rope stretched in a substantially straight line with the sides alternately contacting each other, and a hook attached to the guide rope through a branch rope. Automatic cable pulling device for cable laying. 2. A plurality of rope driving rollers which are wound around a driving roller fitted to an output shaft axially supported by the main body and arranged in a row in the front-rear direction in the invention of claim 1. The first belt looped around in a loop,
A second belt that is endlessly wound around a plurality of rope driven pressing rollers that are arranged in a row in the front-rear direction on the roller mount and are urged toward the row of rope driving rollers through adjustment springs. An automatic cable pulling device for cable laying, comprising a rope towing machine which has a guide rope sandwiched between the both belts and moves the guide rope forward. 3. The invention according to claim 1, wherein front and rear grooved guide rollers pivotally attached to front and rear portions of the main body by laterally projecting pins, respectively, and front and rear directions attached to a central portion of one side of the main body. The lower friction plate that extends in the middle and is convex upward in the central portion, the upper friction plate that is attached to the central portion on one side of the main body and that extends in the front-rear direction and the central portion is convex downward, and the one friction An automatic cable pulling device for cable laying, comprising a rope tension adjuster for pressing the plate toward the other friction plate, and for adjusting the tension of the rope sandwiched between the friction plates. .