JPH079557Y2 - Overhead wire retention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an overhead wire retaining device for efficiently and easily attaching a tension insulator to a wire pole of a utility pole.

[Problems to be solved by conventional techniques and devices]

Conventionally, the distribution line reassembling work and the switch / transformer replacement work performed in parallel with the same work are performed on the tension insulator bracket 10 (this tension insulator bracket is shown in FIGS. 4 and 5).
In practice, 10 is a structure in which a strap 10b is attached to one end of a tension insulator 10a and a clamp 10c is attached to the other end). That is, as shown in FIG. 5 (a), (b) and (e), the working procedure is
First, the live distribution line 12 attached to the discharge clamp 11 by the manipulator device is removed. The distribution line 12 removed from the discharge clamp 11 is placed in a suspended state. Then, the discharge clamp from the D-shaped arm 13
11 is removed, and the tension insulator bracket 10 is attached using the screw hole 13a after the discharge clamp 11 is removed. D-type arm of this tension insulator bracket 10
To attach to the screw hole 13a, the strap 10b (formed in a Y shape) attached to one end of the tension insulator bracket 10 is fitted into the screw hole 13a, and the screw hole 10b1 at the tip is fitted to both screw holes 13a, 1
This is done by inserting the screw 14 into 0b1. The clamp 10 attached to the other end of the tensile insulator bracket 10
The distribution line 12 removed at c was locked, and finally the branch line 15a of the switch 15 mounted on the D-shaped arm 13 was connected to the distribution line 12, and the switch 15 was turned on. After that, the clamp 10
The distribution line 12 located between c and 10c is cut to complete a predetermined column mounting work. The column mounting work is performed by the above-described work procedure when the tension insulator bracket 10 is attached to the D-shaped arm 13. The operation of inserting the screw 14 into the both screw holes 13a, 10b1 by aligning the screw hole 10b1 with the screw hole 13a at the tip of the strap 10b is not very familiar to the manipulator device, and it is very difficult to attach the screw 14 to the front and back of the strap 10b. Further, since it is mounted by so-called co-tightening, there are various problems such that the work is completely unsuitable for the work with the manipulator device.

[Means for Solving the Purpose and Problem of Invention]

The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide an overhead wire retaining device for efficiently and easily attaching a tension insulator to a wire arm of a utility pole. , For this purpose, one end of each strap is pivotally attached to the other end of a pair of tension insulators, each of which has a clamp for grasping an overhead wire, and the other end of these straps is detachably attached to a wrist metal. It is constructed by pivotally connecting both ends of the member.

[Action]

Since the present invention provides the above-described overhead wire retaining device, the complicated work required in the conventional high places is not required to be performed in the high places, and the workability is improved. Further, the pillar work in which the manipulator device is introduced, particularly the so-called work of attaching the tension insulator bracket to the D-shaped arm, which has been almost impossible in the past, can be performed extremely easily and easily by using the manipulator device. Very safe.

〔Example〕

Hereinafter, an embodiment of an overhead wire retaining device according to the present invention will be described in detail with reference to FIGS. 1 to 3.

In the figure, 1 is an aerial work vehicle equipped with a manipulator device, 2 is a turntable, 3 is a boom, 4 is a hoisting cylinder, 5 is an outrigger, 6 is a manipulator operation room equipped at the tip of the boom 3, Reference numeral 7 is a manipulator device mounted in front of the manipulator operation room 6, and 7a, 7a.
Is the left and right slave arms of the manipulator device 7,
7b and 7b are grip claws mounted on the tips of the left and right slave arms 7a and 7a, 8 is a hoisting device mounted on the upper surface of the manipulator operation chamber 6, and 9 is hoisted via a tip sheave of the hoisting device 8. Lifting wire,
Reference numeral 20 is a hook, and 21 is a fastening device according to the present invention for mounting a D-shaped arm 23 mounted on, for example, a utility pole 22 shown on the left side of FIG.

By the way, the structure of the retaining device 21 is, as shown in FIG. 2, a clamp 21c for locking a distribution line via a tension insulator 21b connected to both ends of a rectangular parallelepiped bracket 21a which is a connecting member by straps S. The structure of the retaining device 21 is constructed so that it can be assembled on the ground before starting work at a high place.

Further, a detent 21a1 is formed on the mounting surface of the bracket 21a for the D-shaped arm 23 so that the bracket 21a can be easily positioned with respect to the D-shaped arm.

Hereinafter, based on the above-mentioned structure, the work procedure of the pillar of the overhead wire retaining device according to the present invention will be described.

First, as for the working procedure, as shown in FIG. 1, the manipulator device 7 in which the retaining device 21 is mounted on the work vehicle 1 at a high place is used.
, That is, by hooking the retaining device 21 on the hook 20 attached to the lower end of the lifting wire 9 provided on the lifting device 8 equipped on the manipulator device 6 described above,
It will be moved to the 22 planned pillar positions and will be pillared.

The pillar work of the retaining device 21 is performed by tapping holes 23a which are pre-drilled in the D-shaped arm 23 (the tap holes 23a are used to mount the old discharge clamp 24 itself, which is usually already mounted).
Or located above and below it) is communicated with a through hole 21a2 that is drilled in the center of the bracket 21a of the retaining device 21.
Thereafter, the manipulator device 7 is used to screw a predetermined mounting bolt 25 into both holes 23a and 21a2, and the bracket 21a is attached to the D-shaped arm 23. At this time, the detent 21a1 of the bracket 21a allows the positioning to be accurately performed and the mounting to be facilitated, and the retaining device 21 can be mounted in a correct posture.

Then, the distribution lines 26, 26 which are in a live state are locked by the clamps 21c, 21c provided at both ends of the retaining device 21 mounted as described above, and the distribution line 2 located in front of the clamps 21c, 21c.
Branch lines 27a, 27a of a power distribution device (which will be described as a switch in this embodiment) 27 mounted above the D-shaped arm 23 with respect to 6 and 26.
After making the connection, the distribution lines 26 located behind the clamps 21c, 21c are cut, for example, X1 and X2 shown in the figure, and finally the cut distribution line 26 and the distribution line 26 are locked. The old discharge clamp 24 that has been used is removed to complete the work of connecting the holding device 21 to the branch lines 27a and 27a of the power distribution device (switch) 27.

[Effect of device]

As described in detail above, according to the present invention, one end of each strap is pivotally attached to the other end of a pair of tension insulators each having one end pivotally mounted with a clamp for holding an overhead wire, and the other end of these straps is connected to the arm. Since it is configured by pivotally connecting both ends of the connecting member that is detachably attached to the gold, it is not necessary to perform the complicated work conventionally required at high places, at high places,
The workability is improved, and the pillar work with the introduction of the manipulator device, in particular, the so-called D
The attachment work of the tension insulator bracket to the die arm can be performed extremely easily and easily by using the manipulator device, and has various excellent effects such as being very safe.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view for explaining an overhead wire retaining device according to the present invention, FIG. 2 is a side view of the retaining device according to the present invention, and FIG. 3 is the present invention. FIG. 4 is an explanatory view showing a state in which the overhead wire retaining device according to the present invention is mounted, FIG. 4 is an explanatory view showing a state of a conventional retaining pole of the overhead wire retaining tension insulator, FIG. 5 (a),
(B) And (c) is explanatory drawing which shows the attachment point of the conventional tension | tensile_strength insulator of retention of an overhead wire. 1 ... Aerial work vehicle, 2 ... Turntable, 3 ... Boom, 4
... undulation cylinder, 5 ... outrigger, 6 ... manipulator operation room, 7 ... manipulator device, 7a, 7a ... left and right slave arms, 7b, 7b ... grip claws, 8 ... lifting device,
9 ... Wire for lifting, 20 ... Hook, 21 ... Retaining device,
21a ... bracket, 21a1 ... rotation stop, 21a2 ... through hole, 21b ...
Tensile insulator, 21c ... Clamp, 22 ... Utility pole, 23 ... D type arm, 23a ... Tap hole.

Claims (1)

[Scope of utility model registration request] 1. A pair of tension-resistant insulators, each of which has a clamp for gripping an overhead wire at one end, has one end of a strap pivotally attached to the other end thereof, and the other end of these straps is detachably attached to a armband. An overhead wire retaining device, wherein the connecting member is pivotally attached to both ends of the connecting member.