JPH0274110A - Movable drum type stringing vehicle - Google Patents

Abstract

PURPOSE:To string a cable fed out from a cable drum while pulling through a mobile vehicle and applying tension thereon by mounting a manipulator and a cable drum onto the mobile vehicle. CONSTITUTION:A mobile cable stringing vehicle comprises a manipulator 2, a cable feeder/winder 3 and a mobile vehicle 1. The manipulator 2 comprises a cable gripping mechanism and a bolt tightening mechanism, where the manipulator 2 is telescopable to fit a cable to a cable fixing metal previously fixed to a post and secure the cable thereto. The cable feeder/winder 3 comprises a cable drum 4 and a cable guide means 5. The arm 7 of the cable guide means 5 has a rotary shaft 8 in the vicinity of the upper end of a support 6 and secured with an arbitrary angle, while furthermore a guide pulley 13 is provided as required.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a cable spanning device, and in particular, a cable spanning device that runs a cable while avoiding obstacles such as signs around utility poles, a lead-in line 1 pedestrian bridge, etc. This invention relates to a cable spanning device that spans cables.

[Prior Art] There are two types of cable wiring: round cable wiring and SS type cable wiring in which a hanging wire and a cable are integrated.

FIG. 8 is a diagram illustrating a conventional method of spanning round cables.

When spanning round cables, first connect the suspension wires 31 as shown in Figure 8 (a).
), then the guide lobe 33 is let out from the guide lobe drum 32 as shown in FIG. 8(b), and then the guide lobe 33 is placed on the metal wheel 39 as shown in FIG. 8(c). Attach the metal wheel 39 to the hanging wire 31 while passing it through, and twist the metal fittings 35. Anti-twist device 36°shackle 37. Cable 12 is coupled to guide lobe 33 via cable grip 38 . Next, while winding the guide lobe 33 around the guide lobe drum 32, the cable 12 is passed through the metal wheel 39 and pulled up below the hanging wire. Finally, as shown in FIG. 6(d), the worker rides on the air carrier 39 and connects the cable and the suspension wire with a cable ring to complete the round cable installation work.

FIG. 9 is a diagram illustrating a conventional method of spanning an SS type cable.

First, as shown in Figure 9(a), attach the gold wheel (No. 2 gold wheel) 39 to the utility pole, and then guide it from the opposite side of the installation location of the cable drum 34, as shown in Figure 9(b). Pass the lobe 33 through the metal wheel 39, and connect the cable I2 and anti-twist device 36.
．． fi return hardware 35. Finally, as shown in FIG. 9(C), the SS cable 12 is let out while winding up the guide lobe, which is connected by the cable grip 38.
As shown in FIG. 9(d), one end of the SS winding is fixed with a grip (not shown), tension is applied to the other end by the wire gap 40, and the SS winding is fixed with the grip. Then, insert the twist and fix it to the SS bow frame hardware.

[Problem to be solved by the invention 1 Among the conventional cable laying methods mentioned above, the round cable laying method requires many workers and a lot of time, as shown in Figure 8. Moreover, there is a drawback that the final cable ring hanging requires the operator to ride on the spacecraft, which is very dangerous.

For this reason, the cables used have recently changed from round cables to SS cables. This SS
In the case of a type cable, the hanging wire and cable are integrated, so there is no need for the operator to ride on a carrier during the final process, unlike when spanning a round cable. However, even in the above-mentioned SS type cable spanning method, there is
Not only does a worker have to climb the pole to pass the guide lobe, but it also requires a worker to feed out the SS type cable from the drum at the starting end, and a worker to pull the cable at various points within the span. However, it has the disadvantage that there are many points that need to be improved in terms of safety and efficiency.

SUMMARY OF THE INVENTION An object of the present invention is to provide a drum movable construction vehicle that can reduce the number of times a worker must go up and down a utility pole during construction work, and reduce the number of people and time spent on construction work.

[Means to solve the problem]

A first drum movable spanning vehicle of the present invention includes a manipulator that fixes a cable to a cable fixing fitting attached to a utility pole, and a cable feeding/winding device that feeds out the cable to the outside or winds it up from the outside. , consisting of a mobile vehicle that transports the manipulator and the cable pay-out/wind-up device, and the cable pay-out/wind-up device includes a cable drum device that pays out or winds up the cable, and a cable guide that supports and guides the cable. We have the means.

The second drum movable span type of the present invention is as follows.

a manipulator that fixes a cable to a cable fixing fitting attached to a utility pole; first and second cable feeding/winding devices that feed the cable to the outside or wind it from the outside; the manipulator; Second cable feeding/
It consists of a mobile vehicle that transports the winding device, and a first vehicle. The second cable pay-out/wind-up device includes a hollow-type first and second cable drum device for paying out or winding the cable, and a first and second cable drum device for supporting and guiding the cable. Second
cable guiding means of the first. The first cable guide means respectively carry and carry the second cable guiding means. comprising a second moving mechanism;
Said 1st. The second cable guide means respectively guide the hollowed out cables from the first cable drum device into the first cable guide means.
The hollowed-out cable from the second cable drum arrangement is transferred to the second cable tram arrangement via the upper end of the second cable guiding means. It includes first and second avoidance guide means for guiding to the first cable tram arrangement via the upper end of the first cable guide means.

The third movable drum span type of the present invention is characterized in that the first and second cable guiding means of the second movable drum span type of the present invention have an inverted U-shape consisting of legs and a connecting part. It is made of a pipe member having a shape in which a pipe is cut at a connecting portion thereof, and the first. The second avoidance guide means each include a first one defined by an inner wall of the pipe member. The cable cut out from the second guide chamber and the first and second cable drum devices is transferred to the first guide chamber. to the second information room, or from the first to the second information room to the first one.
．． the first to feed the cable to the second cable drum device. The first one is located in the second information room. a second lower opening, and a first opening corresponding to the cut portion of the pipe member. a second upper opening; It includes an opposing mechanism that allows the second upper openings to face each other.

[Function] In this way, by installing the manipulator and the cable drum device on the moving vehicle, the cable fed out from the cable drum device can be pulled by the moving vehicle and fixed to the fixing bracket of the utility pole using the manipulator. Furthermore, the moving vehicle is provided with two hollow-type cable drum devices outside the manipulator, and a cable fed out from one cable drum device with a hollow hole is passed through the upper end of the cable guide means to the other cable drum. By equipping the device with an avoidance guide means for winding up, it is possible to avoid obstacles upwards and perform striding, which not only improves work efficiency but also improves the winding work. It is possible to reduce such manpower and ensure worker safety.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a side view of a first embodiment of the drum movable span type of the present invention.

The cable movable crossing vehicle of this embodiment has a manipulator 2
．． It consists of a cable feeding/winding device 3 and a moving vehicle 1 that transports the cable.

The mobile vehicle 1 can travel on flat ground or even on somewhat undulating ground. Manipulator 2 is a multi-degree-of-freedom hydraulic manipulator that has a mechanism for gripping the cable and a mechanism for tightening bolts, and is expandable and retractable.The manipulator 2 is a multi-degree-of-freedom hydraulic manipulator that has a mechanism for gripping the cable and a mechanism for tightening bolts. do. The cable payout/winding device 3 includes a cable drum device 4 and a cable guiding means 5 for supporting and guiding the cable fed out from the cable drum device 4 to the outside or wound onto the cable drum arrangement 4 from the outside. There is. The cable guide means 5 consists of a column 6 and an arm 7, and the lower part of the column 6 is fixed to the mobile vehicle 1.

The arm 7 has a rotating shaft 8 near the upper end of the support column 6, and can be freely rotated by an electric motor, hydraulic motor, or cylinder, and can be fixed at any angle.

The support column 6 and the arm 7 are provided with guide pulleys as necessary. In FIG. 1, only the reference number Guide Boo January 3 is shown for simplicity. The cable 12 is guided from the cable drum device 4 through the support 6 and the arm 7 to the guide boo 1713 and let out. The height of the let-out cable 12 is adjusted by rotating the arm 7 about the arm rotation axis 8. Next, the operation of this embodiment will be explained.

A cable fixing fitting is attached in advance by the manipulator 2 to the utility pole on which the cable 12 is to be spanned. The cable 12 fed out from the cable feeding/winding device 3 is pulled by the moving vehicle 1 and given tension while being gripped by the manipulator 2 and hung on the cable fixing fitting, and the bolt of the fitting is tightened to secure the cable. Fixed work is completed. Repeat this operation for each telephone pole.

2(al) and (b) are respectively a side view and a top view of the second embodiment of the drum movable spanning vehicle of the present invention, and FIG.
Figures (a) and (b) are a side view and a front view of the hollow type cable drum device in Figure 2, respectively, and Figure 4 is a side view and a front view of the cable drum device in Figure 3.
Figures 5(a) and 5(b) are diagrams illustrating the hollowing mechanism of the cable drum device in Figure 3, and Figures 5(a) and 5(b) are diagrams showing a cable wound around the cable drum device shown in Figure 3, and a link for hollowing out the cable. FIG. 3 is a diagram showing a cable drum device tilted in the circumferential direction and having a reduced radius.

In this embodiment, when there is an obstacle 40 around the utility pole 19 over which the cable is to be spanned, the cable is guided above the obstacle 40 to avoid it. - Instead of the winding device 3, two cable feeding/winding devices 31 and 32 are provided.

The cable feeding/winding devices 31, 3□ each include a cable drum device 41, 42 and a cable guide means 5, .
52, and a moving mechanism 101.10□.

The cable drum devices 41 and 42 are used for both feeding and winding, and are capable of hollowing out the cable. The moving mechanism lo1.102 has the cable guide means 54.5□ struts 6+, 6z, respectively.
The support column 61.6□ can be carried almost vertically and conveyed in a predetermined direction (left-right direction in FIG. 2), and the position of the support column 61.6□ can be arbitrarily fixed within a movable range. Cable guiding means 5152
are pillars 63, 6□ and arm 7I, respectively.

7□, and guides the cable 12 via a guide pulley 13 (in FIG. 2, a reference numeral is given to one representative guide pulley).

The arm 71.72 rotates around an arm rotation axis 81.82 provided almost horizontally at the upper end of the support column Fz, 6x.
The rotating shaft8. ．． 82, it can be rotated in a conical shape at a constant angle α.

Arm 717. The conical surface defined by the longitudinal axis of
By positioning the arm 71.7□ so that the longitudinal axis of the arm 71.7□ coincides with the line of intersection with the vertical plane containing the longitudinal axis of □, the two arms 71
．． 72 are fixed in opposite positions and can guide the cable 12 to the cable drum device 4□ via the upper end of the arm 7 and the upper end of the arm 7□. The arms 71.72 can be freely rotated or fixed by electric motors, hydraulic motors, or cylinders (not shown), so the columns 63.6□ can be used as moving mechanisms IL, I
No matter which position is fixed by Q□, arms 7, 7
2 can be fixed opposite each other.

In this way, a device that guides the cable from one cable drum device to the other cable drum device via the uppermost ends of the cable guide devices 54, 5□ is defined as an avoidance guide device. In this embodiment, the arm rotation axes 80, 8□ are arranged at opposing positions as shown in FIG. ,, 7.
is an avoidance guidance means.

The cable delivery device 91.9° is attached to the struts 6I and 6□, and sends out the hollowed out cable by sandwiching it between caterpillars.

Next, the mechanism of the hollow type cable drum device will be explained.

Rear disk 2 of hollow type cable drum device of this embodiment
There are teeth cut on the outer periphery of 0 (two cable drum devices are shown symmetrically in Fig. 3(a)).
, these teeth and the gear 21 are engaged, and the gear 21 is connected to the motor 2.
Rotated by 2. At the center of the drum where the cable 12 is wound, the shaft 17 is rotated by a motor 23 with a speed reducer fixed to the back disk 20. Both the front disc 25 and the rear disc 26 are fixed to the shaft 17,
It rotates together with the shaft 17. Front link 27+, 272.
273 (denoted as 27 in Fig. 3(a), hereinafter Fig. 3(
In a), the subscripts are omitted) are the front disk 25 and the support rods 301.30□, 30. At the front end of the rear link 2L,
282.283 is the rear disc 26 and the support rod 30. ．．
30. , 30. It is rotatably attached to the rear end of the One end of the fixed rod 291.292.29s is the back disk 20
and the other ends are respectively fixed to the rear links 28. , 28□
, 283 through the vertical holes provided in the front links 271.27□, 27. It terminates through a vertical hole. Therefore, the radius of the drum is the largest in the state of FIG.
When the drum is rotated in the direction of the arrow in FIG. 4(a), the front and rear links tilt in the circumferential direction as shown in FIG. 4(b), and the radius of the drum becomes smaller.

This hollow type cable drum device is used as follows. That is, first, from the state shown in FIG. 4 (al), the disk 25.
FIG. 5(a) shows a state in which the cable is wound regularly from the center with the cable 26 slightly rotated to the right. This winding is performed by the motor 22 gear 21. At this time, let the beginning of the roll hang toward the front as shown in the diagram. Even if an attempt is made to cut out the cable in this state, it is impossible because there is no gap between the center of the cable drum and the cable. Therefore, if the disks 25 and 26 are further rotated to the right using the above-mentioned mechanism, the result will be as shown in FIG. 5(b),
A gap is created between the support rods 30+, 30□, 303 and the cable. Only in this state can the cable be removed. Also, as the hollowing progresses, the cables and support rods 30□, 30□, 30. To prevent the cable from collapsing due to the gap between the disc 25 and
．． In the apparatus of this embodiment, it is also possible to adjust the gap appropriately by rotating the drum 26 to the left and increasing the radius of the center of the drum.

Next, the operation of this embodiment will be explained.

FIG. 6 is a diagram showing the stages of striding by the drum movable striding vehicle of this embodiment.

First, as shown in FIG. 6(a), the cable is let out from the cable drum device 41 and spanned. At this time, the cable is wound around the cable drum device 4, and the cable is wrapped around the cable drum device 4□. It is in an unrolled state. Then, when passing the utility pole, extend the manipulator 2 shown in FIG. As shown in Fig. 6(b), if there is an obstacle 40 such as a sign or a lead line on the utility pole 19 at the shaded position in the figure, it will not be possible to cross the bridge as it is. Stop at position b), arm 7,,7. Next, the radius of the center of the cable drum device 41 is shortened by the above-mentioned operation, the cable is hollowed out, and the cable feeding device Ml 9 attached to the support column 6I is made to face each other as shown in the figure.
1, send out the cable, and send out the cable tip to the right side of the obstacle 40 as shown in Fig. 6(b).The operator hooks the cable onto the arm 72 and the guide boot of the support column 6□, and then sends out the cable to the cable drum. Set it on device 4□. At this time, the tip of the cable is left hanging forward so that it can be hollowed out later, as shown in FIG. 6(c). Thereafter, the cable is wound onto the cable drum device 4□. The state in which 0 winding is completed is shown in FIG. 6 (dl). In this state, all the cables have passed over the obstacles.

Next, the arm 7I is rotated to the position indicated by the dotted line, and then the crossing vehicle is moved forward. This state is shown in FIG. 6(e). If the support column 6□ is moved rearward, the support column 61 is moved forward, and the arm 71 is rotated 180 degrees, the state will return to the state shown in FIG. 6(a). At this time, the cable is wound around the cable drum device 42. If an obstacle is encountered again, perform the same operation to avoid the obstacle and cross the bridge.

FIG. 7 is a side view of a third embodiment of the drum movable spanning vehicle of the present invention.

When the cable is hollowed out from the cable drum device, the cable is hollowed out with the twist remaining in the cable, as shown in FIG. In the second embodiment, since the diameter of the cable drum device is large, there is almost no twisting between the sending and winding, so there is almost no effect of twisting, but when the diameter of the cable drum device is small, If you try to forcefully stretch a twisted cable, internal stress will be generated in the cable, causing a kink phenomenon. When this kink phenomenon occurs, the cable undergoes plastic deformation, and the cable remains twisted and cannot return to its original position. In order to avoid this kink phenomenon, in this embodiment, as shown in FIG. 7, the cable guide means is a member in the form of an inverted U-shaped pipe having legs and a connecting part, which is cut at the connecting part. Cable guiding means consisting of 15. .

+52 is used. Cable guiding means 15I.

15□ is provided with a facing mechanism that adjusts the respective directions so that their upper openings 161, 162 face each other. 6 In this embodiment, each cable guiding means 151, 152 is vertically aligned as a facing mechanism. A rotation mechanism (not shown) for rotation about an axis is provided at the lower end of their legs, and the cable guiding means 151, 152 are vertically attached to the displacement mechanism 10, +02 via this rotation mechanism. There is. Further, the legs are configured to be expandable and retractable up and down.

Each cable guide means +5. ．． +5□ has a lower opening I11.112 in its leg, said lower opening II+, 1
The cable fed out from the cable drum arrangement 41.42 via the cable guide means 151.152 is sent to the guide chambers 181, 182 inside the cable guide means 151.152, or to the guide chambers IL, 1
The cable guided to the cable drum device 41.
Sent to 42. Figure 7 shows the cable drum device 4. The cable 12 is shown being fed out from the cable drum device 4° to the cable guide means 15. It is guided to the outside by a guide pulley 13 supported by. If there is an obstacle 40 such as a sign or a service line around the utility pole 19 to be spanned, the cut-out cable should be inserted into the lower opening IL.
, enters the upper opening 16 □ of the cable guide means 15 □ opposite thereto through the upper opening 16 through the guide chamber 18 + , passes through the guide chamber 1824 and the lower opening 112 and enters the cable drum device 4 . (Backward of the page in Figure 7). Therefore, the guide chamber IL182, upper opening +6. , ! 6□, lower opening II, +12. The rotation mechanism constitutes an avoidance guide means.

Other configurations and operations are similar to those of the second embodiment.

[Effects of the Invention] As explained above, the present invention includes a manipulator and a cable drum device mounted on a moving vehicle, and the cable fed out from the cable drum device is pulled by the moving vehicle to provide tension while being operated on a manibu rake. It can be fixed to the fixing metal fittings of utility poles, and it can also be installed on the mobile vehicle by installing two hollow cable drum devices outside the manipulator and a cable fed out from one of the cable drum devices. By installing an avoidance guide means for passing above the obstacles around the utility pole and winding it onto the other cable drum device, it is possible to avoid the obstacles upward and perform the crossing. This has the effect of ensuring worker safety, reducing manpower required for construction work, and improving efficiency.

[Brief explanation of the drawing]

FIG. 1 is a side view of the first embodiment of the drum movable span type of the present invention, and FIGS. Side view and top view, Figure 3 (al and (bl) are the side view and front view of the cable drum device 4+ and 4t in Figure 2, respectively, and Figure 4 is the hollow cable drum unit in Figure 3. Figure 5 (al, fb) is a diagram explaining the mechanism, and is a diagram showing the cable wound around the cable drum device in Figure 3, and a diagram in which the link is tilted in the circumferential direction to cut out the cable and the radius is reduced. FIG. 6 is a diagram showing the cable drum device, and FIG. 6 is a diagram showing the stage of striding by the drum movable striding type of this embodiment.
FIG. 7 is a side view of the third embodiment of the drum movable spanning type of the present invention, and FIGS. 8 and 9 are diagrams illustrating the conventional spanning method for round cables and SS type cables, respectively. be. 1...Moving vehicle, 2...Manipulator, 33+
3z...Cable feeding/winding device, 4.4
．． ．． 42... Cable drum device, 5.5. ．．
5□...Cable guide means, 6.6. ．． 6□・
・・・・・・Strut, 7.7. ．． 7□・・・・・・Arm, 88,. 8□・・・Arm rotation axis, 9192...
・・・・・・Cable sending device, 10+, IQ□
・・・・・・Movement mechanism, Ill, ha・・・・・・
・Bottom opening, 12・・・・・・・・・Cable,
13 +31 132...Guide pulley, 15+,
15g...Cable guide means, +6. ,
+62・・・・・・Top opening, +7・・・・・・・・・
... Axis, 181, 182 ... Information room, 19 ...
......Electric pole, 20......Back disc, 21...
......Gear, 22...Motor, 23.
・・・・・・・・・・・・・Motor with reducer, 25
26・・・・・・・・・Disc, 27, 271.
272.273...Front link, 28...
・・・・・・・・・Rear link, 29.291.29
2,2L... Fixed rod, 3030,. 30□, 30.
・・・・Support rod, 40・・・・・・・・・・・・・・・
・Obstacle, 48・・・・・・・・・・・・Cable fixing fittings. Patent applicant Nippon Telegraph and Telephone Corporation

Claims (1)

[Claims] 1. A manipulator that fixes a cable to a cable fixing fitting attached to a utility pole; a cable feeding/winding device that feeds out the cable to the outside or winds it from the outside; the manipulator and the cable; It consists of a mobile vehicle that transports a pay-out/wind-up device, and the cable pay-out/wind-up device is equipped with a cable drum device that pays out or winds up the cable, and a cable guide means that supports and guides the cable. Drum mobile construction vehicle. 2. A manipulator that fixes a cable to a cable fixing fitting attached to a utility pole; first and second cable feeding/winding devices that feed the cable to the outside or wind it from the outside; the manipulator; 1. Second cable feeding/
The first and second cable pay-out and take-up devices each include first and second hollow-type cable drum devices for paying out or winding the cable, and the The first and second supports and guides the cable.
comprising first and second moving mechanisms that respectively carry and convey the cable guiding means and the first and second cable guiding means;
The first and second cable guide means respectively guide the hollowed out cable from the first cable drum device into the first and second cable guide means.
The hollowed out cable from the second cable drum device is passed through the upper end of the second cable guide means to the second cable drum device, and the cable is passed through the upper end of the second and first cable guide means. A drum movable crossing vehicle including first and second avoidance guide means for guiding a first cable drum device. 3. The first and second cable guiding means are each a pipe member having a shape in which an inverted U-shaped pipe consisting of a leg portion and a connecting portion is cut at the connecting portion; The avoidance guide means includes first and second guide chambers defined by the inner wall of the pipe member, respectively, and a cable cut out from the first and second cable drum devices into the first and second guide chambers. first and second lower openings provided in the first and second guide chambers for feeding or sending cables from the first and second guide chambers to the first and second cable drum devices; first and second upper openings corresponding to the cut portion of the pipe member;
3. The movable drum spanning vehicle according to claim 2, further comprising an opposing mechanism that makes the first and second upper openings face each other.