JPH0819136A - Obstacle avoiding apparatus - Google Patents

Abstract

PURPOSE:To provide a wire-form body aerially while avoiding an obstacle, by mounting on the ground the wire-form body on the fastening means prsent in the end part of the retractable boom provided on the rack present in the end part of the elevating boom of a working apparatus for a high place, and by extending the elevating boom to the high place, and further, by extending the retractable boom through the operating of a driving mechanism by its controller. CONSTITUTION:On the ground, an outside wire or rope which are to be provided aerially is mounted on a fastening means (hook) 3 provided in the end part of a retractable boom 2. Then, an elevating boom 7 is extended from a working vehicle 6 for a high place to the predetermined height necessary for the aerial providing. When an obstacle exists in the aerial provision space, the elevating boom 7 is extended to the possible height for avoiding the obstacle. In this state, through the operating of a driving mechanism 4 by its controller 5, while the obstacle is avoided, the outside wire or rope is provided aerially by the extension of the retractable boom 2. As a result, when the aerial providing of the outside wire or rope is performed while its height from the ground is secured, the number of workers can be reduced, and concurrently, by the elimination of the work performed in the high place which is accompanied by the aerial providing, the workability of the aerial providing can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an obstacle avoidance device,
In particular, the present invention relates to an obstacle avoidance device used when a wire rod such as a communication cable is installed in the air while avoiding obstacles and securing a ground clearance.

[0002]

2. Description of the Related Art A communication cable (outdoor line) laid outdoors such as a telephone line may be buried underground, but in general, a direct line or a tow rope is installed between ground structures such as a telephone pole. It is erected via and is connected to the outer walls of houses and buildings. In such a case, the communication cable and the tow rope are often installed across the road or while avoiding obstacles. Various construction examples for constructing an outdoor line while avoiding obstacles will be described below.

FIG. 7 is an explanatory view for explaining a conventional erection method in which a road is cut off and an outdoor line is erected between the outside of a house and a utility pole. When constructing an outdoor line accompanied by a road crossing, an operator first moves up and down to the utility pole 16, attaches the tip of the outdoor line 17 to a fixing hardware 28 provided on the upper part of the utility pole 16, and then connects the outdoor line 17 to the ground. Take it down. Next, attach the fixing hardware 33 to the first attachment point 18 on the house 10 side,
After that, the worker works on the road 9 between the utility pole 16 side and the house 10 side.
Shut off. Then, with the worker blocking the road 9, another worker holds the outdoor line 17 on the ground and crosses the road 9 to the fixing hardware 33 on the house 10 side.
Take 7 and attach to it. In this state, the outdoor line 17 is stretched to secure the ground clearance above the road 9. Reference numeral 29 is a protector provided in the house 10.

Incidentally, as the fixing hardware 28, 33, those having a form as shown in FIGS. 11 (a) and 11 (b) are used.

FIG. 8 is an explanatory view for explaining a conventional erection method in which a road is cut off and a tow rope is erected between utility poles. In erection of the tow rope 11 accompanied by crossing the road, the worker first moves up and down to the utility pole 16, attaches the tip of the tow rope 11 to the fixing hardware 33 provided on the upper part of the utility pole 16, and then pulls the rope. Lower the rope 11 to the ground. Next, the fixing hardware 3 is also attached to the other electric pole 16 to be installed.
Attach 3. After that, the worker takes utility pole 16 and utility pole 16
The road 9 between is blocked. Then, with the worker blocking the road 9, the other worker crosses the road 9 with the tow rope 11 on the ground, and holds the tow rope 11 up to the fixing hardware 33 of the other utility pole 16. Go and attach to this. In this state, the tow rope 11 is stretched to secure the ground clearance above the road 9.

FIG. 9 shows a conventional structure in which an obstacle is placed between the outside of a house and a telephone pole on which an outdoor line is erected, and the obstacle is avoided and an outdoor line is erected between the outside of the house and the telephone pole. It is explanatory drawing explaining the installation method. In the erection of the outdoor line 17 accompanied by avoiding the obstacle 8, the worker first moves up and down to the utility pole 16, attaches the tip of the outdoor line 17 to the fixing hardware 28 provided on the upper part of the utility pole 16, and then the outdoor Take line 17 to the ground. Next, the fixing hardware 33 is attached to the first attachment point 18 on the house 10 side. After that, the worker
The road 9 between the side and the house 10 side. Then, with the worker blocking the road 9, another worker crosses the road 9 along the outdoor line 17 while avoiding the obstacle 8 on the ground. When the obstacle 8 is a tree or the like, a worker throws a rope or raises / lowers the boom 67 of the vehicle 60 for working at height.
Avoid the obstacle 9 by using the pedestal 1 and the ladder attached to the. Further, when the obstacle 9 is a straight line, the obstacle 9 is avoided by using the dodge rod 35 that can be operated from the ground. The outdoor line 17 that avoids the obstacle 9 in this way
Is carried by the worker to the fixing hardware 33 on the house 10 side and attached thereto. In this state, the outdoor line 17 is stretched to secure the ground clearance above the road 9.

As the dodge rod 35, a stretchable type as shown in FIG. 12 is used. A hook 36 for locking a wire or a cable is provided at the tip of the dodge rod 35.

FIG. 10 is an explanatory view for explaining a conventional erection method of erection a tow rope between utility poles while avoiding obstacles. Tow rope 1 while avoiding obstacles 8
In the case where 1 is installed between utility poles 16, a cable drum 19 is installed on the ground on one end side of the plurality of utility poles 16 to be installed, and a winch 12 is installed on the ground on the other end side.
Is installed. The tow rope 11 is erected from the winch 12 side, and in a section where there is no obstacle 8, the worker attaches the gold wheel 20 to the upper part of the electric pole 16 by the method described in FIG.
A tow rope 11 is installed between the two. On the other hand, if there is an obstacle 8 between the electric poles 16, the tow rope 11 is installed while avoiding the obstacle 8. When the obstacle 8 is a tree or the like, the worker throws the rope or avoids the obstacle 9 by using the pedestal 1 or the ladder attached to the elevating boom 67 of the vehicle 60 for working at height. Further, when the obstacle 9 is a straight line, the obstacle 9 is avoided by using the dodge rod 35 that can be operated from the ground. In this way, the tow rope 1 extended to the cable drum 19 while avoiding the obstacle 9.
No. 1 is connected to the tip end portion 19a of the cable wound around the cable drum 19 and stretched by being pulled by the winch 12 on the other end side to secure a ground clearance above the road 9.

[0009] The gold wheel 2 provided above the telephone pole 16
As 0, one having a form as shown in FIG. 11 (c) is used.

[0010]

However, in the method of constructing the outdoor line and the tow rope as described above, when the operator is erected across the road, the worker blocks the traffic on the road and erects it. In order to do this, a plurality of workers are required, and since the traffic is cut off, it is a highly dangerous work for the workers. In addition, when erection while avoiding obstacles, workers must work in high places to avoid obstacles, and dodge rods that are difficult to operate from the ground are used. I had to
The avoidance work was accompanied by danger, and the workability of the avoidance work was poor.

In view of the above, the present invention can reduce the number of workers who erect an outdoor wire or a tow rope while securing a height above the ground, and also work at high places and difficult ground work involved in the erection. It is an object of the present invention to provide an obstacle avoiding device that can eliminate work and improve erection workability.

[0012]

The obstacle avoidance device of the present invention which achieves the above-mentioned object, is an erection section for erection of a filament such as a communication cable between ground structures while securing a ground clearance. An obstacle avoidance device for avoiding obstacles such as roads and trees existing inside, comprising a plurality of rods, the base of which is provided at the tip of a lifting boom of a device for working at high places. A telescopic boom that is attached to a gantry and whose end portion can extend or contract in the horizontal direction; and locking means that is provided at the front end portion of this telescopic boom and that can lock the filament. A drive mechanism that operates so as to extend or retract the telescopic boom, and a control device that is provided on the ground side of the high-altitude work apparatus and that can operate the drive mechanism. Is characterized by.

[0013]

According to the obstacle avoidance device of the present invention, the line to be erected on the locking means provided on the tip of the telescopic boom installed on the pedestal at the tip of the lifting boom of the aerial work device. Attach the strip on the ground, then extend the lifting boom of the device for working at high places to a predetermined height, and in this state, operate the drive mechanism by the control device to extend the telescopic boom, while avoiding obstacles, Moreover, the line member can be installed by one person without blocking the road. As a result, it is possible to perform a safe erection work with a small number of people even when crossing a road where it is necessary to secure a ground clearance without blocking the road and when it is necessary to avoid obstacles.

[0014]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 (a) shows the structure of an aerial work vehicle equipped with an obstacle avoidance device according to an embodiment of the present invention. The obstacle avoidance device of the present invention is applicable to houses and buildings,
Alternatively, it is for avoiding obstacles such as roads and trees existing in the erection section when erection of filaments such as communication cables while securing the ground clearance between the above-ground structures such as electric poles. Generally, it is attached to a pedestal 1 provided at the tip of a lifting boom 7 of an aerial work device 6 such as a vehicle for aerial work. The obstacle avoidance device of the embodiment shown in FIG. 1 (a) includes a telescopic boom 2 attached to the gantry 1, a locking means 3 at the tip of the telescopic boom 2, a drive mechanism 4, and a control device 5. I have it.

The pedestal 1 is provided at the tip of an elevating boom 7 of an aerial work vehicle 6, and a telescopic boom 2 having a base attached to the pedestal 1 comprises a plurality of rods.
As the rod expands and contracts, its tip can be expanded or contracted in the horizontal direction. The telescopic boom 2 is provided at its tip end with a hook 3 as a locking means capable of locking an outdoor wire, which is a linear body, a tow rope, and the like.
Is attached. The drive mechanism 4 operates so as to extend or retract the telescopic boom 2, and its structure will be described later. The control device 5 is provided on the ground side of the aerial work vehicle 6 and can operate the drive mechanism 4.

When an outdoor line or rope is erected by using the vehicle 6 for working at high places equipped with the obstacle avoidance device constructed as described above, the hook 3 at the tip of the telescopic boom 2 is grounded. Attach the outdoor wire or rope to be erected, and extend the lifting boom 7 from the aerial work vehicle 6 to the predetermined height required for erection, as shown in Fig. 1 (b). If there is an obstacle 9 in the erection space, the lifting boom 7 is extended to a height where the obstacle 9 can be avoided. Then, in this state, by operating the drive mechanism 4 by the control device 5, the telescopic boom 2 is extended while avoiding the obstacle 8 and an outdoor wire or rope is installed.

FIG. 2 shows the construction of a concrete embodiment of a drive mechanism for expanding and contracting the obstacle avoidance device.

The telescopic boom 2 is, in this embodiment, the pedestal 1
Attached to the hollow first rod 21, a second hollow rod 22 retractably housed in the first rod 21, and a second hollow rod retractably housed in the second rod 22. The third rod 23 and the fourth rod 24 housed in the third rod 23 so as to be retractable and retractable, and the tip of the fourth rod can hook an outdoor wire or a rope. The hook 3 is attached.
The drive mechanism 4 includes a stretching drum 41, a stretching motor 42,
An extension wire 43 wound around the extension drum 41 after being stretched between the first rod 21 and the fourth rod 24, a pulley 44 for changing the direction of the extension wire 43,
Shrinkage drum 45, shrinkage motor 46, fourth rod 2
4, a retracting wire 47 attached to the retracting drum 45 and wound on a retracting drum 45, a longest limit switch 48 that defines the maximum extension position of the telescopic boom 2, and the telescopic boom 2.
Of the shortest limit switch 49 for defining the shortest position of In addition, the control device 5 controls the vehicle 6 for high-altitude work.
A transmitter 5 that is provided on the ground side of the vehicle and transmits infrared rays 52
1, the receiver 53 provided on the drive mechanism 4 side, the signals from the longest and shortest limit switches 48 and 49, and the signal from the receiver 53 are input, and the expansion motor 42 and the contraction motor 46 are connected. And a controller 55 that outputs a signal for driving the. Reference numeral 54 denotes a telescopic operation button provided on the transmitter 51.

In the obstacle avoidance device constructed as shown in FIG. 2, when the operator pushes the telescopic button 54 of the transmitter 51, infrared rays 52 are transmitted from the transmitter 51, and the telescopic button 5 is transmitted.
When 4 is released, the transmission of the infrared ray 52 from the transmitter 51 is stopped. The receiver 53 is the infrared light 52 transmitted from the transmitter 51.
When this is received, it is converted into a current and sent to the controller 55,
The controller 55 determines whether the telescopic boom 2 is telescopic. When the control is extension, a drive signal is output from the controller 55 to the extension motor 42, the extension motor 42 rotates the extension drum 41, and the extension wire 43 is wound up.
The telescopic boom 2 extends. When the telescopic boom 2 extends and reaches the maximum length, the longest limit switch 48 is turned on and sends a signal to the controller 55, so that the drive signal from the controller 55 to the extension motor 42 is stopped and the extension boom 2 is extended. Stop. On the other hand, when the control is contraction, a drive signal is output from the controller 55 to the contraction motor 46, and the contraction motor 46
Rotates the contracting drum 45 and winds the contracting wire 47, whereby the telescopic boom 2 contracts. When the telescopic boom 2 contracts to the shortest length, the shortest limit switch 49 turns on and sends a signal to the controller 55, so that the drive signal from the controller 55 to the retracting motor 46 stops and the extendable boom 2 moves. Contraction stops.

In this embodiment, the transmitter 51 and the receiver 53 using infrared rays are used for the control device 5, but the operating side of the control device 5 and the controller 55 may be connected by wires. good. Further, in this embodiment, the extension boom 2 is composed of four rods 21 to 24, but the number of rod stages is not particularly limited. Further, in this embodiment, the telescopic boom 2 is composed of a plurality of retractable rods, but it may be composed of a bending arm.

Next, a description will be given of an embodiment in which the obstacle avoiding device constructed as described above is actually attached to a vehicle for work at high places to perform erection work. In order to make the description easier to understand, the same members as the members such as the ground structure described in the conventional example will be denoted by the same reference numerals.

FIG. 3 shows the use of the obstacle avoidance device of FIG. 2 mounted on a vehicle 60 for work at height, and an outdoor line 17 is installed across the road 9 between the outside of the house 10 and the utility pole 16. It is explanatory drawing which shows an Example. In the construction using the obstacle avoidance device of the present invention, first, the worker is the outdoor line 17
To the fixing hardware 33 at the first attachment point 18 on the house 10 side, and attach the outdoor line 17 to this.
After this, the lifting boom 67 is lowered, and the operator carries the outdoor line 17 to the aerial work vehicle 60 where the gantry 1 is near the ground, and the telescopic boom 2 in the contracted state attached to the gantry 1 is taken. Attach the outdoor wire 17 to the hook 3 at the tip. Then, the operator operates the elevating boom 67 of the vehicle 60 for working at height above the ground to lift the gantry 1 and secure the ground height. Next, the operator operates the control device (not shown) of the obstacle avoidance device to extend the telescopic boom 2 attached to the gantry 1 across the road 9. In this state, the worker crosses the road 9 and moves to the utility pole 16 side, receives the outdoor wire 17 attached to the hook 3 at the tip of the telescopic boom 2 with the dodge rod 35 operable from the ground, and the utility pole 16 The tip of the outdoor wire 17 is temporarily attached to the fixing hardware 28 provided on the upper part of the. After this, the worker once returns to the house 10 side, wires from the fixing hardware 33 to the protector 29, crosses the road 9 again and returns to the utility pole 16 side, climbs to the utility pole 16 and outdoor to the fixing hardware 28. Line 17 is stretched.

As described above, by using the obstacle avoidance device of the present invention, even when the outdoor line 17 is installed across the road 9 between the house 10 and the utility pole 16, one operator can perform this installation work. Can be done safely in. In addition, fixing hardware 2
As shown in FIGS. 11 (a) and 11 (b), 8 and 33 are used as described above, and as the dodge bar 35, those shown in FIG. 12 are used.

FIG. 4 shows the use of the obstacle avoidance device of FIG. 2 mounted on a vehicle 60 for work at height, and a towing rope 11 is installed between the electric pole 16 and the electric pole 16 while avoiding the obstacle 8. It is explanatory drawing which shows the Example. In the construction using the obstacle avoidance device of the present invention, the worker first moves the aerial work vehicle 60 to a position near the electric pole 16 and the obstacle 8 between the electric poles 16, and lifts the elevating boom 67. Lower it and position the gantry 1 near the ground. Next, the worker ascends and descends to the utility pole 16, attaches the tip of the tow rope 11 to the fixing hardware 33 provided on the upper part of the utility pole 16, and then lowers the tow rope 11 to the ground. The operator attaches the lowered tow rope 11 to the hook 3 at the tip of the telescopic boom 2 in the contracted state attached to the base 1. Then, the operator operates the elevating boom 67 of the vehicle 60 for working at height above the ground to lift the gantry 1 to the vicinity of the tow rope installation section to secure the ground height.

Here, the operator operates the control device (not shown) of the obstacle avoiding device to extend the telescopic boom 2 attached to the pedestal 1 to avoid the obstacle 8. Then, in this state, the worker receives the tow rope 11 attached to the hook 3 at the tip of the telescopic boom 2 by the dodge bar 35 operable from the ground. After this, the operator carries the tow rope 11 to the utility pole 16 on which it is installed, moves up and down to the utility pole 16, attaches the tip of the tow rope 11 to the fixing hardware 33 provided on the upper part of the utility pole 16, and attaches this. To stretch.

Thus, by using the obstacle avoidance device of the present invention, even when the tow rope 11 is erected between the electric poles 16 while avoiding the obstacles 8, this erection work is performed. One person can do it safely.

FIG. 5 shows a lifting device 70 capable of securing a ground clearance.
2 using the obstacle avoidance device of FIG.
It is explanatory drawing which shows another Example which constructs the outdoor wire 17 between 0 outdoor and the telephone pole 16. As shown in FIG. In the lifting device 70 capable of ensuring the ground clearance in this embodiment, its base 71 is the wheel 7.
It is configured to be movable by two, and an elevating boom 73 is provided on the base 71. The gantry 1 is located at the tip of the elevating boom 73, and the gantry 1 shown in FIG.
The obstacle avoidance device is attached. The erection work of the outdoor line 17 in this embodiment is shown in FIG. 3 except that the above-configured lifting device 70 capable of securing a ground height is used in place of the aerial work vehicle 60. Since the procedure of the erection work described is the same, the description thereof will be omitted. Also in this embodiment, the work of constructing the outdoor line 17 across the road 9 between the house 10 and the electric pole 16 can be safely performed by one worker.

In FIG. 6, an outdoor line 17 is installed between the outside of the house 10 and the utility pole 16 by using the obstacle avoidance device of FIG. 2 attached to the lifting device 90 installed on the roof of the self-propelled vehicle 80. It is explanatory drawing which shows another Example. The lifting device 90 capable of ensuring the ground clearance in this embodiment is installed on the roof of the self-propelled vehicle 80, and the lifting boom 91 is provided on the roof. Note that the vehicle 80 is provided with overhanging legs 92 so that the vehicle 80 does not move when the up-and-down boom 91 is moved up and down. The mount 1 is located at the tip of the lifting boom 91, and the obstacle avoiding device shown in FIG. 2 is attached to the mount 1. The erection work of the outdoor line 17 in this embodiment is the erection work described in FIG. 3 except that the lifting device 90 installed on the roof of the general vehicle 80 is used in place of the aerial work vehicle 60. Since the procedure is the same as above, the description thereof will be omitted. Also in this embodiment, the work of constructing the outdoor line 17 across the road 9 between the house 10 and the electric pole 16 can be safely performed by one worker.

As shown in the above-described embodiments, according to the present invention, in the case of constructing a communication cable or the like, a plurality of workers are conventionally required when constructing a cable across a road, which is dangerous. Although it was a work with high efficiency, by installing the obstacle avoidance device of the present invention on the platform of a vehicle for aerial work that can secure the required ground clearance, workability is improved, the number of workers is reduced, and safety is improved. Can be improved. Also, when installing cables etc. while avoiding obstacles,
If the obstacle is a tree or a straight line, it is a work at a high place that relies on human power, and the workability is poor and the work is dangerous. By attaching the obstacle avoidance device of the present invention to a pedestal such as a work vehicle, it is possible to improve workability, reduce the number of workers, and improve safety.

[0030]

As described above, according to the present invention,
When laying outdoor lines and tow ropes while ensuring the ground clearance, it is possible to reduce the number of workers who erect, and to eliminate the work at height and difficult ground work associated with erection. There is an effect that the property can be improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a configuration of an embodiment of an obstacle avoidance device of the present invention, (a) showing a state of the obstacle avoidance device when a cable is attached on the ground, and (b) showing It is a figure showing the state where an obstacle avoidance device is avoiding an obstacle.

FIG. 2 is a configuration diagram showing a specific configuration example of the obstacle avoidance device of FIG.

FIG. 3 is an explanatory view showing an embodiment in which a cable is installed between the outside of a house and a telephone pole by using the obstacle avoidance device of FIG. 2 attached to a vehicle for work at high places.

FIG. 4 is an explanatory view showing an embodiment in which a cable is installed between utility poles by using the obstacle avoidance device of FIG. 2 attached to a vehicle for work at high places.

5 is an explanatory diagram showing an embodiment in which a cable is installed between the outside of a house and a utility pole by using the obstacle avoiding device of FIG. 2 attached to a lifting device capable of securing a ground clearance.

6 is an explanatory view showing an embodiment in which a cable is installed between the outside of a house and a utility pole by using the obstacle avoidance device of FIG. 2 attached to a lifting device installed on the roof of a general vehicle.

FIG. 7 is an explanatory diagram illustrating a conventional erection method of erection of a cable between the outside of a house and an electric pole by blocking a road.

FIG. 8 is an explanatory diagram illustrating a conventional erection method of erectioning a tow rope between utility poles by cutting off a road.

FIG. 9 is an explanatory diagram for explaining a conventional erection method for laying a cable between the outside of a house and a telephone pole while avoiding obstacles.

FIG. 10 is an explanatory diagram illustrating a conventional erection method of erection of cables between utility poles while avoiding obstacles.

[Fig. 11] (a) is a perspective view of a fixture attached to the outside of a house, (b) is a perspective view of a fixture attached to a utility pole, and (c).
FIG. 3 is a perspective view of a gold wheel attached to a telephone pole.

FIG. 12 is a perspective view showing a configuration of a conventional dodge bar.

[Explanation of symbols]

 1 Platform 2 Telescopic Boom 3 Locking Means (Hook) 4 Drive Mechanism 5 Control Device 6 High-altitude Work Device 7, 67, 73 Lifting Boom 8 Obstacle 9 Road 10 House 11 Traction Rope 12 Winch 16 Power Pole 17 Outdoor Line 19 Cable drum 20 Gold wheel 21,22,23,24 Rod 28,33 Fixing hardware 35 Dodge rod 41 Extension drum 42 Extension motor 43 Extension wire 44 Pulley 45 Winding drum 46 Contraction motor 47 Contraction wire 48 Longest Limit switch 49 Minimum limit switch 51 Transmitter 53 Receiver 54 Telescopic operation button 55 Controller

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hachiro Kobayashi 37 Hojo, Nagano City, Nagano Shin-Etsu Tsushin Construction Co., Ltd.

Claims (1)

[Claims] 1. An obstacle for avoiding obstacles such as roads and trees existing in the erection section when erection of striations such as communication cables while securing a ground clearance between the above-ground structures. An evasion device that is configured with multiple rods, the base of which is attached to a pedestal provided at the tip of the lifting boom of a device for working at high places, and the tip of which extends or contracts in the horizontal direction. A telescopic boom capable of moving, a locking means provided at the tip of the telescopic boom and capable of locking the linear body, a drive mechanism for operating the telescopic boom to extend or contract, It is provided on the ground side of a device for working in high places, and is composed of a control device capable of operating the drive mechanism. On the ground, the linear member is attached to the locking means, and the lifting boom is mounted at a predetermined height. With stretched to By operating the driving mechanism by a control device, the obstacle while avoiding stretch the telescopic boom can be laid striatal of obstacle avoidance system.