JP3415370B2 - Wire cutting tool and wire gripper - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to the hypothetical to in the distribution line in order to power failure only work interval isolate between via wires while maintaining the tension of the overhead distribution line wire switching divided tool and its
It relates 掴 line instruments used to record.

[0002]

2. Description of the Related Art As a typical conventional wire gripper used for drawing wires, electric wires, cables, etc., there is, for example, one shown in FIG. This wire gripper grips the covered electric wire 6 between the receiving metal 3 provided on the wire gripper main body 1 and the push metal 5 attached to the swing lever 2. When the handle 4 is operated, the swing lever 2 is rotated, and the pusher 5 is moved toward the receiving metal 3.

On the other hand, as a typical conventional wire gripper used for a cutting tool, there is, for example, one shown in FIGS. In this wire gripper, the covered electric wire 6 is gripped between the push metal 5 and the receiving metal 3 by using the tightening force of the screw by the bolt 8 and the tightening force of the wedge member 9 that moves in the axial direction of the covered electric wire 6. .

However, in the above-mentioned various wire grippers, a wire cutting tool is used after gripping the wire and then using the wire tensioner.
There is a need Komu pull to the side, man-hours increases. Also, it was necessary to prepare grippers of various sizes according to the wire size.

Further, when the covered electric wire is gripped and the wire is stretched ,
A slip occurred between the coating and the conductor, and the electric wire gripping function was not sufficiently exerted. For this reason, it is necessary to strip off the wire coating at the time of wire gripping, and it is necessary to perform insulation coating processing again after removing the wire gripper, which has the drawback of increasing man-hours and materials.

Further, in the conventional wire gripper shown in FIG. 5, when it is used in a place where the wire tension is small, there is a drawback that the wire is detached during the work because the gripping force is small.

[0007]

SUMMARY OF THE INVENTION The present invention is an overhead distribution line.
The tension of the overhead distribution line in order to cut the power of only the construction section.
An electric wire cutting tool that cuts the electric wire while holding it
And to provide a grabber for use in it
There is. More particularly, the present invention is, without using the existing Zhang line unit, electric wire can be gripped Then simultaneously Zhang line, also can be used in free size regardless of the diameter of the electric wire, the electric wire construction It is an object of the present invention to provide an electric wire cutting tool that does not require the work of stripping the electric wire coating and can firmly and surely grip even a place where the electric wire tension is small, and a wire gripper used therefor.

[0008]

The present invention is directed to both ends of an insulating rod.
Attach a gripper to each of the
The electric wire between the grippers
The above problem is solved by a wire cutting tool. Well
In addition, the present invention can be mounted by inserting an electric wire at one end of an insulating rod.
It is a gripper that can be worn, and the place sandwiched by the gripper
With a wire gripper that separates the wire part on the side of the insulation rod
However, the above problem is solved. The grabber is the
The lower part where the wire receiving part and the operation bolt are screwed up and down freely
The support frame that has the bearing part of the
And a relay member that is integrally movable in the vertical direction,
1 rotatably connected to both wings of the joint member
A pair of connecting levers and a pair of connecting levers are attached to each upper part of the rotating levers.
The wire holding member commonly connected to the
Insulating rods that are rotatably connected in common to each lower part of the bar
And a connecting end member connected to one end of the.

[0009]

In the wire cutting tool of the present invention, a pair of
Paralleling by connecting lever, wire holding member and connecting end member
A quadrangular link mechanism is constructed. Rotate the operation bolt
By moving the relay member upward, it becomes parallel.
The moving link mechanism moves up without operating, and the wire receiving part
And clamp the wire between the wire holding members. Furthermore,
The rotation of the work bolt causes the link mechanism to start operating.
The support frame relative to the connecting end member in the direction of the other gripper.
Movement to loosen the tension of the electric wire between the grippers. Also,
In the wire gripper of the present invention, a pair of connecting levers and wire pushing
Parallelogram link mechanism with a base member and a connecting end member
Is configured, and by rotating the operating bolt ,
The joint member moves upward and the parallel movement link mechanism does not operate.
By moving up so far, the wire receiving part and the wire
Insert the wire between the holding members and rotate the operating bolt.
By operation, the link mechanism starts to operate and the support frame is connected.
Moves in the direction of the insulating rod side relative to the end member
Loosen the tension.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a wire gripper of the present invention will be described with reference to FIGS.

As best shown in FIGS. 1 and 3, the wire gripper 100 of the present invention mainly includes a connecting end member 21, a support frame 22, an operating bolt 23, a relay member 24, a connecting lever 25, and a wire holding member 26. Has become.

In this wire gripper 100, each connecting end is
The material 21 includes a connecting pin 213 (see FIG.
4) Ru mounted rotatably by. The operation bolt 23 is screwed into the bearing portion 221 at one end of the support frame 22.
An electric wire receiving portion 222 is formed at the other end of the support frame 22. The relay member 24 to the distal end of the operation bolt 23 extending toward the electric wire receiving part 222, the operation and via the pivot bearing 243
Relative to the operating bolt 23 on the axis of the bolt 23
Rotate freely connected to. The operation bolt 23 is the connecting end member 2
1 penetrates the long groove 212 (FIGS. 1 and 2) provided in the first groove 1, and the tip thereof reaches the relay member 24. On the other hand, a long hole 223 is vertically provided in the support frame 22, and the relay member 2 is inserted into the long hole 223.
4 and a guide part 224 which is integrated with
As a result, the relay member 24 is operated by the rotation of the operation bolt.
It moves up and down together with the bolt 23.

An intermediate portion of a pair of connecting levers 25, 25 is connected to both blade end portions 241, 242 of the relay member 24 by a connecting pin 24.
5, 245 rotatably attached. Relay member 2
Between 4 and the wire receiving portion 222, it is swingably connected to the connecting pin 265,265 and one end of each connecting lever 25 and the cable pressing member 26. Bearing portion 221 of the support frame 22
When, with the relay member 24, it is pivotally connected to the other end and <br/> connecting end member 21 and the connecting pins 215 and 215 of each connecting lever 25. The electric wire holding surface of the electric wire pressing member 26 is provided with serrated slip prevention. In this way, the wire holding member 26, the connecting end member 21, and the connecting lever 25 constitute the parallel movement link mechanism 110 with the connecting pins 245 and 245 of both blades of the relay member 24 as fulcrums.

Next, the operation of the wire gripper 100 of the present invention will be described. The case where the wire gripper 100 of the present invention is used for an electric wire cutting tool as shown in FIG. 3, for example, will be described.

Since the wire gripper 100 is formed in a bilaterally symmetrical structure with the insulating rod 30 interposed therebetween, the left wire gripper 100 will be described as an example for convenience of description.

A wire gripper 100 is attached to the left and right of the wire cutting tool with the insulating rod 30 interposed therebetween. As shown in Figure 1,
By pulling out the operation bolt 23, the space between the wire pressing member 26 and the wire receiving portion 222 of the support frame 22 is opened to the maximum extent. At this time, the upper and lower parts of the relay member 24 are not
Between the wire holding member 26 and the connecting end member 21, respectively.
It is preferable to provide a slight gap. Then, the grippers 100 at both left and right ends are hooked on the electric wire 6, and the operation bolt 23 of one (right side in this embodiment) of the gripper 100 is tightened, so that the electric wire 6 is separated by the electric wire receiving portion 222 and the electric wire pressing member 26. Hold on.

Next, when the other (left side in this embodiment) wire gripper 100 is slightly moved in the direction (left direction) away from the one (right side) wire gripper 100 ((A) in FIG. 4), The connecting end member 21 is pulled by the insulating rod 30 to move in the horizontal direction.
Not . Therefore, the connecting lever 25 uses the connecting pin 245 of the relay member 24 as a fulcrum, and the arrow 2 in FIG.
It slightly rotates counterclockwise as indicated by 51. In the position described above, the operation bolt 23 is tightened, and the electric wire 6 is sandwiched between the electric wire pressing member 26 and the electric wire receiving portion 222 of the support frame 22 ((B) of FIG. 4). At this time, the link mechanism 110 does not operate until the wire pressing member 26 contacts the wire 6. That is, the connecting end member 21 is protected from water by the insulating rod 30.
Since the horizontal movement is restricted, the link mechanism 110 is constructed.
The connecting lever 25 that is formed moves upwards as the relay member 24 moves.
It moves but does not rotate. This a tree, connecting lever 25
The connecting end member 21 is pulled up in the vertical direction.

After the electric wire pressing member 26 contacts the electric wire 6, the member 26 presses the electric wire 6 against the electric wire receiving portion 222 ((B) of FIG. 4). At this time, the upper part of the relay member 24 and
Between the lower part and the wire holding member 26 and the connecting end member 21.
The wire holding member 26 while maintaining a slight gap generated in the
Compresses the wire coating, and the connecting lever 25
It is slightly rotated clockwise about the fulcrum 5 as indicated by an arrow 252. After the pressure with which the electric wire pressing member 26 compresses the electric wire 6 reaches a predetermined value, the above-mentioned gap disappears and the connecting lever 2
5 cannot rotate in the clockwise direction 252. Connection lever 2
5 is a watch indicated by an arrow 252 with the connecting pin 245 as a fulcrum.
When the connector end member 21 is slightly rotated in the direction,
Because it cannot move in the horizontal direction, the link mechanism 11
The support frame 22 connected to 0 is indicated by an arrow 61 (see FIG. 4).
(C)) Moves slightly in the horizontal direction. As a result,
The wire device 100 is at both ends of the insulating rod 30 while holding the electric wire 6.
Loosen the wire between the grippers. At this time, the gripper 10 on the right side
Similarly, 0 is pulled by the insulating rod 30 and the link mechanism 110 similarly strongly grips the electric wire 6.

In this manner, the tightening of the operation bolt 23 and the operation of the link mechanism 110 are combined, and after the electric wire 6 is gripped at a predetermined pressure, when a pressure higher than that is applied, the tension of the electric wire 6 is relaxed. Move, i.e. grabber
The electric wire on the outer side can be stretched, and relative sliding between the electric wire 6 and the gripper 100 and between the conductor of the electric wire 6 and the coating does not occur. Then, the electric wire can be easily separated between the grippers 100 on both ends of the insulating rod 30.

[0020]

According to the onset light according to the present invention, it is possible to clad line simply by gripping the electric wire without using the existing Zhang line unit,
Regardless of the diameter of the covered electric wire, the covered electric wire can be firmly and reliably gripped without slipping. Therefore, the covering process before and after the covering of the electric wire is unnecessary, and the work efficiency of the electric wire construction can be improved.

[Brief description of drawings]

It is a front view of one of the units of 掴 line unit based on the present invention; FIG.

FIG. 2 is a side view seen from the line II-II in FIG.

3 is a front view of the entire 掴 line device of the present invention.

FIG. 4 is an operation explanatory view of one unit of the wire gripper of the present invention.

FIG. 5 is a front view of one unit of a conventional wire gripper.

FIG. 6 is a front view of one unit of another conventional wire gripper.

FIG. 7 is a side view of FIG.

[Explanation of symbols]

21 ... Connection end member 22 ... Support frame 23 ... Operation bolt 24 ... Relay member 25 ... Connection lever 26 ... Wire holding member 30 ... Insulating rod 6 ... Coated wire 100 ... Gripping device with a wire-drawing function 221 ... Bearing part 222 ... Electric wire receiving part 241, 242 ...
Both wings

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Tatsumi 4-1129 Nishi-Tenma, Kita-ku, Osaka City, Osaka Prefecture Daito Denki Co., Ltd. (56) References: Kaihei 2-10713 (JP, U) (58) ) Fields surveyed (Int.Cl. ⁷ , DB name) H02G 1/04

Claims (2)

(57) [Claims] 1. An electric wire is provided on each end of the insulating rod (30).
Do not attach the wire gripper (100) that sandwiches (6).
And the electric wire between the portions sandwiched by the grippers (100).
(6) In the wire cutting tool for cutting the part, each wire gripper (100) includes an upper wire receiving portion (222) and an operating bolt (23).
It has a lower bearing part (221) that is screwed to move up and down.
Support frame (22) and the operation bolt (23) are rotatable and vertically integrated.
A relay member (24) provided so as to be movable, and pivotally supported by both wings of the relay member (24) respectively.
A pair of connecting levers (25, 25) connected to each other, and rotatable to the upper part of each of the pair of connecting levers (25, 25)
The electric wire pressing member (26) commonly connected to each other and the lower part of each of the pair of connecting levers (25, 25) are rotatable.
Is commonly connected to one end of the insulating rod (30).
And a pair of connecting levers (25, 25), and the wire holding portion.
With the material (26) and the connecting end member (21),
A parallel movement link mechanism (1
10) is configured, and the operation bolt (23) of the wire gripper (100) is
The relay member (24) is moved upward by rotating it.
And the translation link mechanism (110) is activated.
By moving up without it, the electric wire receiving portion (2
22) and the electric wire pressing member (26) between the electric wire
Insert (6), and turn the operation bolt (23).
By the rolling operation, the link mechanism (110) starts to operate.
The support frame (22) against the connecting end member (21).
Then, it moves relative to the other gripper (100) relative to each other.
Electric wire for relaxing the tension of the electric wire (6) between the wire devices (100)
Cutting tool. 2. An electric wire (6) is sandwiched at one end of an insulating rod (30).
A掴線unit that is mounted put viewed (100), said
From the position sandwiched by the wire gripper (100), the insulating rod (3
The electric wire (6) portion on the (0) side is cut and separated.
In the device (100), the wire gripper (100) has an upper wire receiving portion (222).
And a lower part that is vertically screwed into the operation bolt (23).
And a support frame (22) having a bearing (221) of the same, and rotatable integrally with the operation bolt (23) in the vertical direction.
A relay member (24) provided so as to be movable, and pivotally supported by both wings of the relay member (24) respectively.
A pair of connecting levers (25, 25) connected to each other, and rotatable to the upper part of each of the pair of connecting levers (25, 25)
The electric wire pressing member (26) commonly connected to each other and the lower part of each of the pair of connecting levers (25, 25) are rotatable.
Is commonly connected to one end of the insulating rod (30).
And a pair of connecting levers (25, 25), and the wire holding portion.
With the material (26) and the connecting end member (21),
A parallel movement link mechanism (1
10) is configured, and by rotating the operation bolt (23),
The relay member (24) moves upward, and
The mechanism (110) moves upward without operating.
The electric wire receiving portion (222) and the electric wire pressing portion
The electric wire (6) is sandwiched between the materials (26), and
The link mechanism is operated by rotating the operation bolt (23).
(110) is activated, the support frame (22) is
Relative to the connecting end member (21) in the direction of the insulating rod side
Wire gripper that moves in an electric manner to loosen the tension of the electric wire (6).