KR102543446B1 - electric wire cutting tool - Google Patents

Abstract

The purpose is to reduce the burden on workers and to carry out wire cutting work safely and efficiently, depending on the surrounding conditions of the wire to be cut, the insulation rod method (first method) and the batch method (second method) The task is to provide a viable wire cutting tool by appropriately selecting a method). The wire cutting tool includes a first wire gripper, a second wire gripper, an extensible rod member, and a lock member. The first electric wire gripper can swing with respect to the rod member. The locking member prohibits swinging of the first wire gripper with respect to the rod member in a locked state, and permits swinging of the first wire gripper with respect to the rod member in an unlocked state.

Description

electric wire cutting tool

The present invention relates to a wire cutting tool.

[0002] A method for cutting electric wires is known. In the electric wire cutting method, wire cutting tools are used. The wire cutting tool includes a first wire gripper, a second wire gripper, and a retractable rod disposed between the first wire gripper and the second wire gripper. When cutting and splitting a wire using a wire cutting tool, first, a first portion of the wire is gripped with a first wire gripper, and a second portion of the wire is gripped with a second wire gripper. Second, the flexible bar is contracted so that the distance between the first wire gripper and the second wire gripper is reduced. As a result of the contraction, the wire positioned between the first wire gripper and the second wire gripper becomes loose. Thirdly, the wire is cut at a position between the first wire gripper and the second wire gripper (a position where the wire is slack).

As a related technology, Patent Document 1 describes a live line cutting tool. In the live wire cutting tool described in Patent Literature 1, the first electric wire gripper can swing with respect to the extensible rod. In the case of cutting a wire using the live wire cutting tool described in Patent Document 1, first, the first wire gripper is lifted using an insulating rod and the first wire gripper is attached to the wire. Second, the flexible bar is swung relative to the first electric wire gripping tool. Thirdly, in the region between the first wire gripper and the second wire gripper, the wire is supported by the wire gripper. Fourth, the second wire gripper is mounted on the wire. Fifthly, the wire is loosened by contracting the telescopic bar so that the first wire gripper approaches the second wire gripper. Sixth, the wire is cut at a position between the first wire gripper and the second wire gripper (a position where the wire is loose). The construction method includes a step of relatively swinging the extensible rod with respect to the first electric wire gripping tool. The construction method concerned is referred to as "insulation rod method" or "first method".

In addition, Patent Document 2 describes a span fixing tool for electric wire cutting work. In the tool described in Patent Literature 2, the first wire gripper, the stretchable rod, and the second wire gripper are arranged in a straight line. In the tool described in Patent Literature 2, the extensible rod is relatively unable to swing relative to the first wire gripper and relatively unable to swing relative to the second wire gripper. In the case of performing electric wire cutting work using the tool described in Patent Document 2, first, lift the entire electric wire cutting tool using tongs or the like, and place it in the area between the first wire gripper and the second wire gripper. In the present invention, the wire is supported by the wire support. Second, the first wire gripper is attached to the wire, and the second wire gripper is attached to the wire. Thirdly, the wire is loosened by contracting the extensible rod so that the first wire gripper approaches the second wire gripper. Fourth, at a position between the first wire gripper and the second wire gripper (a position where the wire is slack), the electric wire is cut. This construction method does not include a step of relatively swinging the extensible rod with respect to the first electric wire gripper. The construction method concerned is referred to as a "batch method" or a "second construction method".

Japanese Patent Laid-Open No. 2010-88256 Japanese Patent Laid-Open No. 2015-70651

By the way, many of the high-tension wires that are subject to the cut-slice construction have three wires arranged horizontally, and low-tension wires are installed below them. For this reason, when attaching an electric wire cutting tool to an electric wire, the bucket of an aerial work platform is placed at a position close to the immediate underside of the high-tension cable, and one operator is approaching the electric wire from the bucket of the aerial work vehicle. At that time, the worker lifts the long and heavy electric wire cutting tool to the position of the electric wire overhead with an insulating rod or tongs and performs work. When an operator reaches out from within the narrow bucket and operates the electric wire cutting tool positioned overhead, always exercise caution so as not to lose the balance and drop the wire cutting tool to the ground, or lose one's position and cause injury. work was being requested.

In the insulation rod method, the worker holds the insulation rod by hand, lifts the first wire gripper (first wire grip) using the insulation rod, and directly mounts the first wire gripper (first wire grip) on the electric wire. are doing In this method, even if the existing low-tension line runs out of control and the bucket cannot enter directly under the high-tension line, the operator takes a rather unreasonable posture to securely attach the first wire grip located at the tip of the wire cutting tool to the electric wire. possible. However, in the first working process of cutting work, the mounting position of the electric wire cutting tool is determined by holding the electric wire with the first wire grip. For this reason, it was not an easy task for the operator to attach the first wire grip to a desired position with high precision while breaking the posture from a slightly distant position. Further, in a later work process, adjusting the operator to move the wire cutting tool away from the inside of the bucket again is a time consuming task and cannot be said to be an efficient task.

On the other hand, in the collective method, while holding the wire cutting tool with tongs, the operator lifts the tongs with his or her hand while maintaining balance, and attaches the wire cutting tool to the electric wire. In this method, according to the positional relationship between the bucket and the wire to be cut, the operator attaches the electric wire cutting tool to the most easy-to-attach position on the wire. Then, after attaching the wire cutting tool, it is possible to horizontally move the wire cutting tool to the electric wire cutting location. In particular, when cutting three high-tension wires simultaneously, it is necessary to shift the cutting locations of adjacent wires, so it is effective that the electric wire cutting tool can be moved horizontally. However, in the first working process, the operator needs to lift the wire cutting tool together with the tongs above the head. For this reason, in the case where the bucket and the electric wire, which is the target of the cut powder work, are separated, the burden on the operator's body becomes large. In addition, when the wire is wired at an angle, after the wire cutting tool is attached to the wire in the first working process, the wire cutting tool flows down along the inclination direction of the wire due to gravity. I needed to fix it afterwards. And, temporarily fixing the electric wire cutting tool after mounting it was not an efficient operation.

In conventional wire cutting tools, when only tools suitable for the insulating rod method are prepared, the insulating rod method must be performed under a situation where the batch method is suitable. Or, if the insulation rod method is not suitable, you have to return to get a wire cutting tool for the batch method. On the other hand, when only a tool suitable for the batch method is prepared, the batch method must be implemented under a situation where the insulating rod method is suitable. Or, if the batch method is not suitable, you have to return to get a wire cutting tool for the insulated rod method. Of course, if you bring both a tool suitable for the insulating rod method and a tool suitable for the batch method to the construction site, it is possible to select a more suitable method. However, in this case, it is necessary to prepare both tools and to bring both tools to the construction site.

Therefore, the present invention solves these problems, reduces the burden on the operator, and aims to safely and efficiently perform wire cutting work, depending on the surrounding conditions of the wire to be cut, the insulation rod method (first method) and batch method (second method) are appropriately selected to provide a viable wire cutting tool.

The present invention relates to a wire cutting tool shown below.

(1) a first wire gripper;

A second electric wire holding tool;

An extensible rod member disposed between the first wire gripper and the second wire gripper;

An electric wire support connected to the rod member and capable of rotating around an axis in the longitudinal direction of the rod member;

Equipped with a lock member,

The first wire gripper is capable of swinging around a swing central axis perpendicular to the longitudinal axis with respect to the rod member,

The lock member prohibits swinging of the first wire gripper with respect to the rod member in a locked state, and allows swinging of the first wire gripper with respect to the rod member in an unlocked state. Electric wire cutting tool.

(2) The lock member is movable between a first position that prohibits swinging of the first wire gripper with respect to the rod member and a second position that allows swinging of the first wire gripper with respect to the rod member. The electric wire cutting tool according to (1) above.

(3) The electric wire cutting tool according to (2), further comprising an urging member for urging the lock member in a direction from the second position toward the first position.

(4) The lock member is movable between the first position and the second position in a state in which the first wire gripper, the rod member, and the second wire gripper are arranged in a straight line. The electric wire cutting tool according to (2) or (3) above.

(5) The electric wire cutting tool according to any one of (2) to (4), wherein the lock member is movable in a direction parallel to the swing central axis.

(6) further comprising a first operating portion for operating the lock member;

The electric wire cutting tool according to any one of (1) to (5) above, wherein the first operating portion includes an accommodating portion capable of receiving an end portion of the remote operating rod.

(7) The electric wire cutting tool according to (6), wherein the first operation unit is rotatable around a rotational axis perpendicular to the swing central axis.

(8) The area of the accommodating portion in plan view changes as the first operating portion rotates around the rotating shaft;

The electric wire cutting tool according to (7) above, wherein the area of the accommodating portion in plan view becomes maximum or minimum when the lock member is in the locked position.

(9) further comprising a support member for supporting the lock member;

The lock member has a protruding portion protruding toward the outside of the lock member,

The support member is

a shallow groove engageable with the protrusion of the lock member;

The electric wire cutting tool according to any one of (6) to (8) above, comprising a deep groove engageable with the protrusion of the lock member.

(10) further comprising a guard member covering the side surface of the lock member;

The electric wire cutting tool according to any one of (1) to (9), wherein the guard member is movable between a third position covering the side surface of the lock member and a fourth position exposing the side surface of the lock member. .

(11) The electric wire cutting tool according to (10), wherein the guard member includes a stopper for regulating movement of the lock member.

According to the present invention, it is possible to provide a viable wire cutting tool by appropriately selecting the insulating rod method (first method) and the batch method (second method) according to the surrounding conditions of the electric wire to be cut. As a result, the operator's burden is reduced, and electric wire cutting work can be performed safely and efficiently.

1 is a schematic front view of a wire cutting tool in an embodiment.
Fig. 2 is a schematic front view of the electric wire cutting tool in the embodiment.
3 is a schematic plan view of a wire cutting tool in the embodiment.
4 is a schematic front view showing an example of a locking mechanism.
5 is a cross-sectional view in the direction of arrow AA in FIG. 1 .
6 is a cross-sectional view in the direction of arrow BB in FIG. 2 .
Fig. 7 is a schematic perspective view schematically showing the periphery of the lock member.
FIG. 8 is an enlarged view of a region indicated by an arrow C in FIG. 1 .
FIG. 9 is an enlarged view of a region indicated by an arrow D in FIG. 3 .
Fig. 10 is a schematic front view of the electric wire cutting tool in the embodiment.
11 is a schematic plan view of a wire cutting tool in the embodiment.
12 is an arrow EE direction diagram in FIG. 10 .

EMBODIMENT OF THE INVENTION Hereinafter, the electric wire cutting tool in embodiment is demonstrated in detail, referring drawings. In addition, in this specification, the same or similar code|symbol is attached|subjected to the member which has the same kind of function. In addition, there are cases where repeated descriptions of members with the same or similar reference numerals are omitted.

(definition of direction)

In this specification, the "X direction" is the direction along the longitudinal axis L1 of the rod member 5, along the central axis of swing S1 between the rod member 5 and the first wire gripper 2 The direction is defined as the "Y direction", and the direction perpendicular to both the X and Y directions is defined as the Z direction.

(Embodiment)

Referring to Figs. 1 to 4, the electric wire cutting tool 1 in the embodiment will be described. 1 and 2 are schematic front views of the electric wire cutting tool 1 in the embodiment. 1 shows a state in which the first wire gripper 2 is unable to swing relative to the rod member 5, and FIG. 2 shows a state in which the first wire gripper 2 swings relative to the rod member 5 Indicates a possible condition. 3 is a schematic plan view of the electric wire cutting tool 1 in the embodiment. 4 is a schematic front view showing an example of a locking mechanism.

The wire cutting tool 1 is a tool used when performing an operation of cutting an electric wire and arranging one end of the cut electric wire and the other end apart from each other. Since the electric wire cutting tool itself is not provided with a cutting blade for cutting electric wires, the electric wire cutting tool 1 may be called a wire cutting aid. Further, a cutting blade for cutting the electric wire may be provided in the electric wire cutting tool itself.

1, the wire cutting tool 1 includes a first wire gripper 2, a second wire gripper 3, a first wire gripper 2 and a second wire gripper 3 ), an extensible rod member 5 disposed between, an electric wire holder 6 connected to the rod member 5, and a lock member 7.

The first wire gripper 2 is a mechanism for gripping the first portion P1 of the electric wire W, and the second wire gripper 3 is configured to grip the first portion P1 of the electric wire W and Is a mechanism for gripping the different second part P2.

The extensible rod member 5 is a member for changing the distance between the first wire gripper 2 and the second wire gripper 3. In the example described in FIG. 1 , one end of the rod member 5 is connected to the first wire gripper 2 so as to be able to swing with respect to the first wire gripper 2 . That is, the rod member 5 is capable of swinging around the swing central axis S1 with respect to the first wire gripper 2 . In addition, in the example described in FIG. 1 , the other end of the rod member 5 is connected to the second wire gripping tool 3 . It is preferable that the connection between the rod member 5 and the second wire gripper 3 is a non-swaying connection.

In the example described in FIG. 1 , the rod member 5 includes an outer member 51 (eg, a first elongated member having a cylindrical shape) and an inner member 52 (eg, a cylinder). a second elongate member having a shape or a columnar shape). A part of the inner member 52 is inserted inside the outer member 51 . When the inner member 52 moves relative to the outer member 51 in a direction along the longitudinal axis L1 of the rod member 5, the first wire gripper 2 and the second wire gripper (3) The distance between them changes.

The wire holder 6 is a member that supports the wire W in the region between the first wire gripper 2 and the second wire gripper 3 . The wire holder 6 may be a member that supports the wire by directly contacting the wire W, or may be a member that surrounds the wire W and defines the position of the wire W. In the example described in FIG. 1 , the portion of the wire W positioned between the first portion P1 and the second portion P2 passes through the accommodating space SP of the wire holder 6 . As a result, the position of the wire W is defined by the wire holder 6. In addition, the accommodating space SP is described later.

In the example described in Fig. 1, the number of wire holders 6 is three (first wire holder 6a, second wire holder 6b, third wire holder 6c). . Generally, the number of wire holders 6 may be one, two, or four or more.

At least one of the wire supports 6 is rotatable around the longitudinal axis L1 of the rod member 5 . In the example described in FIG. 1 , the first wire holder 6a is rotatable around the longitudinal axis L1. The first wire holder 6a supports one end of the wire W after the wire W is cut (in addition, “supporting the end” means “regulating the position of the end”). are included). When the first wire holder 6a is rotated around the longitudinal axis L1, the position of one end of the wire W changes. For example, the wire W is cut at the position indicated by the arrow H, and from the state described in FIG. 1, the first wire holder 6a is rotated 180 degrees around the longitudinal axis L1. Assume rotation. In this case, the position of one end of the electric wire W changes from a position above the rod member 5 to a position below the rod member 5 . In this way, it is possible to separate one end of the electric wire W from the other end of the electric wire W.

Subsequently, the locking member 7 is demonstrated. In the example described in FIG. 1 , the first wire gripper 2 is swingable with respect to the rod member 5 around a swing central axis S1 perpendicular to the longitudinal axis L1 of the rod member. When the lock member 7 is in the locked state, relative swing between the first wire gripper 2 and the rod member 5 (fluctuation around the swing central axis S1) is inhibited, and the lock member 7 When is in a non-locked state, relative swing between the first electric wire gripper 2 and the rod member 5 (fluctuation around the swing central axis S1) is allowed.

Any mechanism can be employed as the locking mechanism for the locking member 7 to prevent relative rocking between the first wire gripping tool 2 and the rod member 5. For example, by inserting a locking member (for example, a lock pin) through the hole formed in the first electric wire gripper 2 and the hole formed in the rod member 5, the above-described relative swing may be prevented. In addition, at least one of the hole formed in the first electric wire gripper 2 and the hole formed in the rod member 5 may be replaced with a concave portion. Alternatively, as shown in FIG. 4 , the locking mechanism may be a locking mechanism using engagement/disconnection between the hook member, which is the lock member 7, and the pin 8. In the example described in FIG. 4 , the hook member is attached to the first electric wire gripper 2 so as to be able to rotate, and the pin 8 is attached to the rod member 5 . Alternatively, the hook member may be rotatably attached to the rod member 5, and the pin 8 may be attached to the first electric wire gripper 2.

It is assumed that the wire cutting tool 1 is used when the locking member 7 is in an unlocked state. In this case, relative swing between the first electric wire gripper 2 and the rod member 5 is allowed. For this reason, when carrying out cutting work of an electric wire, it is possible to implement a method including a step of relatively swinging the rod member 5 with respect to the first wire gripper 2 (insulation rod method or the first method). ).

In the insulating rod method, for example, the following seven steps are performed. In the first step, the first wire gripper 2 is lifted using an insulating rod, and the first wire gripper 2 is attached to the wire W (in other words, the first wire gripper 2) placed on the wire). In the second step, the extensible rod member 5 is rocked relative to the first electric wire gripper 2 . In the third step, in the region between the first wire gripper 2 and the second wire gripper 3, the wire W is supported by the wire holder 6 (also in this specification , "supporting the wire" includes "regulating the position of the wire"). In the fourth step, the second wire gripper 3 is attached to the wire W (in other words, the second wire gripper 3 is disposed on the wire). In the fifth step, the extensible rod member 5 is contracted so that the first wire gripper 2 approaches the second wire gripper 3. By executing the fifth step, the wire W is loosened. In the sixth step, the wire W is cut at a position between the first wire gripper 2 and the second wire gripper 3 (a position where the wire is slack). In the seventh step, the wire holder 6 is rotated around the rod member 5. By executing the seventh step, the position of one end of the cut electric wire is separated from the position of the other end of the cut electric wire.

Next, it is assumed that the wire cutting tool 1 is used when the locking member 7 is in a locked state. In this case, relative swing between the first wire gripper 2 and the rod member 5 is prohibited. For this reason, when carrying out cutting work of electric wire, the method performed in the state which fixes the rod member 5 immovably to the 1st electric wire gripper 2 can be implemented (batch method or the 2nd method).

In the batch method, the following five steps are executed, for example. In the first step, the entire wire cutting tool 1 is lifted using tongs or the like, and the wire W is cut in the area between the first wire gripper 2 and the second wire gripper 3. It is supported by the wire support (6). In the second step, the first wire gripper 2 is attached to the wire W (in other words, placed on the wire), and the second wire gripper 3 is attached to the wire W (in other words, placed on the wire W). If so, place it on the wire). In the third step, the extensible rod member 5 is contracted so that the first wire gripper 2 approaches the second wire gripper 3. By executing the third step, the wire W is loosened. In the fourth step, the wire W is cut at a position between the first wire gripper 2 and the second wire gripper 3 (a position where the wire is slack). In the fifth step, the wire holder 6 is rotated around the rod member 5. By executing the fifth step, the position of one end of the cut electric wire is separated from the position of the other end of the cut electric wire.

The electric wire cutting tool in the embodiment includes a lock member. For this reason, it is possible to selectively execute an insulation rod method and a batch method using the electric wire cutting tool in embodiment. For this reason, there is no need to implement the batch method under the circumstances where the insulating rod method is suitable, and there is no need to implement the insulating rod method under the situation where the collective method is suitable. In addition, there is no need to prepare both a wire cutting tool suitable for the insulating rod method and a wire cutting tool suitable for the batch method.

(arbitrary additional configuration example)

Subsequently, an arbitrary additional structural example employable in the embodiment will be described.

(First configuration example)

Referring to Figs. 5 and 6, an arbitrary additional first configuration example employable in the embodiment will be described. 5 is a cross-sectional view in the direction of arrow A-A in FIG. 1 . 6 is a cross-sectional view in the direction of arrow B-B in FIG. 2 . 5 shows the state when the lock member 7 is in the locked position, and FIG. 6 shows the state when the lock member 7 is in the unlocked position.

In the example described in FIG. 5 , the lock member 7 is in the first position where swinging of the first wire gripper 2 relative to the rod member 5 is prohibited. On the other hand, in the example described in FIG. 6 , the lock member 7 is in the second position allowing swinging of the first electric wire gripper 2 relative to the rod member 5 . And the lock member 7 is movable between a 1st position and a 2nd position. Further, in the first configuration example, each of the first position and the second position is a position in the Y direction of the lock member 7 (ie, a position in the direction along the longitudinal direction of the lock member 7) ) means

In the example described in FIGS. 5 and 6 , the lock member 7 is a pin member that can be inserted into the holes 50a and 50b formed in at least one of the first wire gripper 2 and the rod member 5 . Among the cross-sectional shapes of the pin member (cross-sectional shape perpendicular to the swing central axis S1), the cross-sectional shape of the portion inserted into the holes 50a and 50b is preferably circular. However, the cross-sectional shape of the pin member may be a shape other than circular.

In the example described in FIG. 5 (namely, in the locked state), the lock member 7 is inserted into the holes 50a and 50b and abuts against the lower surfaces 20a and 20b of the first electric wire gripper 2. there is. As a result, the first wire gripper 2 cannot swing downward with respect to the rod member 5 . In addition, in the example described in FIG. 1 , since the end of the first wire gripper 2 abuts against the stopper 5a provided on the rod member 5, the first wire gripper 2 is Regarding (5), it cannot swing upward. In this way, swinging of the first wire gripper 2 relative to the rod member 5 is inhibited.

In general, in addition to forming a hole in the first wire gripper 2, a hole 50b or the like is formed in the rod member 5, and a lock member 7 (for example, a lock pin) is formed in these holes may be passed through. Also in this case, in the locked state, the first wire gripper 2 cannot swing downward with respect to the rod member 5, nor can it swing upward.

In the example described in FIGS. 5 and 6 , the first wire gripper 2 is disposed inside the rod member 5 . Alternatively, the rod member 5 may be disposed inside the first wire gripper 2 . In this case, instead of forming the holes 50a and 50b in the rod member 5, you may form holes in the first wire gripper 2. In the locked state, the lock member 7 may come into contact with the upper surface of the rod member 5 while being inserted into the hole of the first electric wire gripper 2 .

In the example described in FIGS. 5 and 6 , the electric wire cutting tool 1 includes a support member 71 supporting the lock member 7 . As shown in FIG. 5 , the shape of the support member 71 may be a cylindrical shape with a bottom or other shapes. In the example described in FIGS. 5 and 6 , the support member 71 is fixed to the rod member 5 . Alternatively, when the first wire gripper 2 is arranged outside the rod member 5, the support member 71 may be fixed to the first wire gripper 2. Alternatively, the support member 71 may be omitted. When the supporting member 71 is omitted, the locking member 7 becomes detachable from the wire cutting tool 1 in the unlocked state.

In the example described in FIGS. 5 and 6, the support member 71 is screwed to the rod member 5, and between the support member 71 and the rod member 5, a washer 72 is disposed. . Alternatively, the fixing of the support member 71 to the rod member 5 or the like may be performed by a method other than screwing.

In the first configuration example, the electric wire cutting tool 1 includes an urging member 76 (for example, a coil spring or the like) that urges the lock member 7 in a direction from the second position toward the first position. spring) may be present. In the example described in FIGS. 5 and 6 , an urging member 76 is disposed inside the supporting member 71 . The urging member 76 may be disposed between the receiving portion 71a of the supporting member 71 and the receiving portion 7a of the locking member 7 (see FIG. 6 ).

When the electric wire cutting tool 1 includes an urging member 76 that urges the lock member 7 in a direction from the second position toward the first position, the lock member 7 is moved from the second position. When moving to the 1st position, it is not necessary to apply an external force to the locking member 7 continuously. For this reason, the operation for moving the lock member 7 from the 2nd position to the 1st position becomes easy. Further, when the lock member 7 is in the first position, the lock member 7 is effectively held in the first position by the urging member 76 . For this reason, the lock by the lock member 7 is not unintentionally released. For example, it is assumed that the lock by the lock member 7 is unintentionally released during transport of the electric wire cutting tool. In this case, the first wire gripper 2 may swing with respect to the bar member 5 and the first wire gripper 2 may collide with the bar member 5 or another tool. As a result, there is a possibility that the rod member 5 or other tools or the like may be damaged. In contrast, when the urging member 76 is provided, the lock is not unintentionally released. For this reason, when the wire cutting tool is transported, when the first wire gripper 2 swings with respect to the bar member 5, the first wire gripper 2 collides with the bar member 5 or another tool. There is nothing to do.

In the first configuration example, the lock member 7 is in a state in which the first wire gripper 2, the rod member 5, and the second wire gripper 3 are arranged in a straight line (ie, FIG. In the state shown in 1), it is preferable to be movable between the first position and the second position.

A state in which the first wire gripper 2, the rod member 5, and the second wire gripper 3 are disposed on a straight line is a state in which the collective method can be implemented. When the batch method is running, there may occur cases where the continuation of the batch method becomes difficult. For example, the above-described first step (step of supporting the wire W by the wire holder 6) in the batch method is executed, and the first wire gripper 2 is attached to the wire. After that, there may be a case in which the operation of mounting the second wire gripper 3 to the wire cannot be performed. In this case, the lock member 7 is moved from the first position to the second position to enable relative swing between the first electric wire gripper 2 and the rod member 5 . That is, even when the batch method is being executed, that is, when the wire cutting tool is separated from the water and supported by the overhead wire (in the air), the batch method can be stopped and switched to the insulating rod method. As a result, the work of attaching the second wire gripper 3 to the electric wire W can be completed.

As described above, in a state in which the first wire gripper 2, the rod member 5, and the second wire gripper 3 are arranged in a straight line, the lock member 7 is in the first position and the second position. When it is movable between two positions, it is possible to stop the execution of the batch method and switch to the insulating rod method during execution of the batch method.

In addition, in the first configuration example, the lock member 7 is in a state where the first wire gripper 2, the rod member 5, and the second wire gripper 3 are arranged on a straight line. Only", it may be movable between the first position and the second position. In this case, in a state where the first wire gripper 2, the rod member 5, and the second wire gripper 3 are not disposed on a straight line, the first wire gripper 2 and the bar member The relative fluctuation of (5) is not prohibited. Therefore, there is no risk that the wire cutting tool 1 is used in an incorrect state. For example, the state shown in FIG. 6 is a state in which the first wire gripper 2, the rod member 5, and the second wire gripper 3 are not arranged on a straight line. In the state shown in FIG. 6 , the first electric wire gripping tool 2 is positioned on the forward and backward path of the lock member 7 . For this reason, the lock member 7 cannot move between the 1st position and the 2nd position. On the other hand, the state shown in Fig. 5 is a state in which the first wire gripper 2, the rod member 5, and the second wire gripper 3 are disposed on a straight line. In the state shown in FIG. 5 , no member obstructing the movement of the lock member 7 is disposed on the forward and backward path of the lock member 7 . For this reason, it is possible to move the lock member 7 between a 1st position and a 2nd position. Generally, when a hole capable of accepting the lock member 7 is formed in each of the first wire gripper 2 and the rod member 5, the first wire gripper 2 and the rod member Only when (5) and the second wire gripper 3 are arranged on a straight line, the hole of the first wire gripper 2 and the hole of the rod member 5 may be matched. In this case, in a state where the first wire gripper 2, the rod member 5, and the second wire gripper 3 are not disposed on a straight line, the hole of the first wire gripper 2 and , the holes of the rod member 5 do not match. For this reason, the lock member 7 cannot move between the 1st position and the 2nd position.

In the first structural example, the lock member 7 is preferably movable in a direction parallel to the swing central axis S1. Tensile force mainly acts on the rod member 5 of the wire cutting tool 1 . When the lock member 7 is movable in a direction perpendicular to the tensile force, that is, in a direction parallel to the central axis of swing S1, the lock member 7 is locked even under a situation where the tensile force is acting. It is easy to move between the first position and the second position.

(Second configuration example)

Referring to FIGS. 5 to 7 , an arbitrary additional second configuration example employable in the embodiment will be described. 7 is a schematic perspective view schematically showing the periphery of the lock member 7 . In addition, in FIG. 7, description of the guard member 9 mentioned later is abbreviate|omitted.

In the second structural example, the electric wire cutting tool 1 includes a first operation portion 74 for operating the lock member 7 . And, the 1st operation part 74 includes the accommodating part 740 which can accept the end part of the remote control rod.

In the example described in FIG. 5 , the first operation unit 74 is provided at an end portion of the lock member 7 . In the example described in FIG. 5, although the 1st operation part 74 and the lock member 7 are separate bodies, the 1st operation part 74 and the lock member 7 may be integrally molded one member. In addition, in the example described in FIG. 5, although the 1st operation part 74 and the lock member 7 are directly connected (for example, screw coupling), the 1st operation part 74 and the lock member 7 are , You may be connected via a load transmission mechanism, such as a link member.

The accommodating portion 740 has a shape capable of accommodating an end (for example, a hook portion) of the remote control rod. The accommodating portion 740 may have, for example, a ring shape (ie, a closed shape with a hole formed therein) or a hook shape.

When the first operation unit 74 has an accommodating portion 740 capable of receiving the end of the remote operation rod, even when the lock member 7 is located at a distance from the operator, the operator uses the remote operation rod Thus, it becomes possible to move the locking member 7 by operating the first operation unit 74 . For example, a case where the electric wire cutting tool 1 is supported by an overhead electric wire is assumed. Even in this case, the operator can operate the first operation unit 74 from the platform of the aerial work platform or from the ground using a remote control rod.

In the second configuration example, the first operating unit 74 (more specifically, the accommodating unit 740) may be rotatable around a rotating shaft R1 parallel to the swing central axis S1. And when the 1st operation part 74 is rotated around rotating shaft R1 (for example, it is rotated 90 degrees), lock member 7 may be comprised so that it may move from a locked position to a non-locking position. In addition, in the second configuration example, each of the locked position and the non-locked position means at least a rotational position of the locking member 7 around the rotating shaft R1.

Assume a case where the wire cutting tool 1 is supported by an overhead wire. In this case, in the state shown in FIG. 5 , that is, in the state where the lock member 7 is in the locked position, the receiving portion 740 has a substantially straight shape when viewed from the bottom. On the other hand, in the state shown in Fig. 6, that is, in the state where the lock member 7 is in the unlocked position, the housing portion 740 has a generally ring shape when viewed from the bottom. For this reason, the operator can easily grasp whether the locking member 7 of the wire cutting tool 1 supported by the overhead wire is in a locked position or unlocked position.

In addition, it demonstrates concretely. A plane parallel to the X direction and parallel to the Y direction is defined as a projection plane. In addition, it is assumed that the accommodating portion 740 is projected onto the projection plane by parallel light rays parallel to the Z direction. When the 1st operation part 74 (accommodating part 740) is rotated around rotation axis R1, the area (projection area) where the accommodating part 740 is projected on the projection surface changes.

In the example described in FIG. 5 (the example in which the lock member 7 is in the locked position), when the accommodating portion 740 is projected onto the projection plane by parallel light rays parallel to the Z direction, projection of the accommodating portion 740 area is minimal. On the other hand, in the example described in FIG. 6 (example in which the locking member 7 is in the unlocked position), when the accommodating portion 740 is projected onto the projection surface by parallel light rays parallel to the Z direction, the accommodating portion 740 ) has a maximum projected area. At this time, the ring shape of the accommodating portion 740 can be easily grasped when viewed from the bottom. In general, when the accommodating portion 740 has a hook shape, the hook shape of the accommodating portion 740 can be easily grasped when viewed from the bottom.

From the viewpoint of visibility, it is preferable that the projected area of the accommodating portion 740 is maximized or minimized when the lock member 7 is in the locked position. In other words, the area of the accommodating portion 740 in plan view changes as the first operation unit 74 rotates around the rotating shaft R1, and the area of the accommodating portion 740 in plan view also changes. It is preferable that is maximum or minimum when the lock member 7 is in the locked position.

In the second structural example, similarly to the first structural example, the electric wire cutting tool 1 may include a support member 71 that supports the lock member 7 .

In the example described in FIG. 7 , shallow grooves 712 and deep grooves 714 are formed at the ends of the support member 71 . On the other hand, the locking member 7 (more specifically, the shaft portion 7b of the locking member) is provided with a projecting portion 7c protruding toward the outer diameter of the locking member. When the protrusion 7c of the lock member 7 engages the shallow groove 712, the lock member 7 is in the unlocked position. At this time, the rod member 5 can swing with respect to the first electric wire gripper 2 . On the other hand, when the protrusion 7c of the lock member 7 engages the deep groove 714, the lock member 7 is in the locked position. At this time, the rod member 5 cannot swing with respect to the first electric wire gripper 2 .

In order to move the locking member 7 from the unlocked position to the locked position, the first operating unit 74 is moved in the Y direction against the urging force by the urging member 76, and furthermore, the 1st operating unit (74) is rotated around the rotation axis (R1). Then, when the position of the protruding portion 7c of the lock member 7 matches the position of the deep groove 714, the lock member 7 is locked by the urging force of the urging member 76 ( That is, it moves to the first position). In order to move the locking member 7 from the locked position to the non-locking position, in the order opposite to the above-described operation (moving the locking member 7 from the unlocked position to the locked position), the first operation unit 74 ) to be manipulated.

When the support member 71 includes a shallow groove 712 engageable to the lock member 7 and a deep groove 714 engageable to the lock member 7, the lock member 7 is locked in the locked position. or selectively positioned in a non-locked position. For this reason, unintentional movement of the lock member 7 from the locked position to the non-locked position or the movement from the non-locked position to the locked position is suppressed.

In addition, in the example described in FIG. 7 , the position of the shallow groove 712 is a position rotated 90 degrees around the rotating shaft R1 with respect to the position of the deep groove 714 . For this reason, when the 1st operating part 74 (more specifically, the accommodating part 740) is rotated 90 degree around the rotating shaft R1, the locking member 7 will move from a locked position to a non-locked position (or , from the non-locked position to the locked position).

Further, as shown in FIG. 7 , two shallow grooves 712 may be formed and two deep grooves 714 may be formed in the supporting member 71 . In the example described in FIG. 7 , the two shallow grooves 712 are arranged on a straight line. In other words, the two shallow grooves 712 are formed at positions facing each other with respect to the rotating shaft R1. In addition, the two deep grooves 714 are also arranged on a straight line. For this reason, every time the 1st operation part 74 is rotated 90 degree|times around rotation axis R1, the lock member 7 is arrange|positioned alternately in a locked position and a non-locking position.

Moreover, in the example described in FIG. 7 , two protrusions 7c are provided on the lock member 7 . And, the two protrusions 7c are arranged in a straight line. For this reason, the lock member 7 is stably supported by the support member 71 by engaging the two protrusions 7c with the two shallow grooves 712 or the two deep grooves 714 .

(Example 3)

Referring to Figs. 5 and 6, an arbitrary additional third configuration example employable in the embodiment will be described.

In the third structural example, the wire cutting tool 1 includes a guard member 9 covering the side surface of the lock member 7 . In the example described in FIG. 6 , the guard member 9 covers the side surface of the shaft portion 7b of the lock member 7 . Moreover, the guard member 9 is movable between the 3rd position (position shown in FIG. 6) which covers the side surface of the lock member 7, and the 4th position which exposes the side surface of the lock member 7. More specifically, the guard member 9 is movable in the Y direction and the direction opposite to the Y direction.

A male screw 71b may be installed on the outer surface of the supporting member 71, and a female screw 9b may be installed on the inner surface of the guard member 9. In this case, by rotating the guard member 9 around a straight line parallel to the Y direction, the guard member 9 can be moved between the third position and the fourth position.

As shown in FIG. 6 , the lock member 7 (more specifically, the shaft portion 7b of the lock member) is protected by the guard member 9 . For this reason, when another member collides with the electric wire cutting tool 1, etc., the risk of damage to the lock member 7 is small. For example, when another member collides with the electric wire cutting tool 1, etc., the risk that the shaft portion 7b of the lock member 7 is broken is small.

In the third configuration example, the guard member 9 may include a stopper 92 that restricts the movement of the lock member 7 . In the example described in FIG. 6 , the stopper 92 (for example, the end face of the guard member 9 ) is in contact with the lock member 7 or a part of the first operation unit 74 . For this reason, the lock member 7 cannot move from the second position toward the first position (lock position).

When implementing the insulating rod method, the guard member 9 is moved to the 3rd position (position shown in FIG. 6). In this case, the lock member 7 is protected by the guard member 9 . Moreover, when the guard member 9 is equipped with the stopper 92, there is no risk that the lock member 7 will move from the 2nd position to the 1st position during implementation of the insulating rod method.

(4th configuration example)

Referring to Figs. 8 and 9, an arbitrary additional fourth configuration example employable in the embodiment will be described. FIG. 8 is an enlarged view of a region indicated by an arrow C in FIG. 1 . FIG. 9 is an enlarged view of a region indicated by an arrow D in FIG. 3 .

The fourth configuration example relates to an example of the connection portion between the first wire gripper 2 and the rod member 5. In the fourth structural example, the electric wire cutting tool 1 includes the pin member 40 arranged along the swing central axis S1. The pin member 40 may have a shaft portion 40a and a head portion 40b. As shown in FIG. 9 , the shaft portion 40a is arranged so as to pass through the through hole 28 formed in the first electric wire gripper 2 and the through hole 58 formed in the rod member 5 . Then, the first wire gripper 2 and the rod member 5 can relatively swing around the axial portion 40a of the pin member 40 . Alternatively, the pin member 40 may be fixed to either the first wire gripper 2 or the rod member 5 .

In the example described in FIG. 9 , in the connecting portion between the first wire gripper 2 and the rod member 5, the first wire gripper 2 includes two plate portions 27a and 27b. In addition, the rod member 5 includes two plate portions 57a and 57b. Then, the first wire gripper 2 and the rod member 5 in a state where the two plate portions 27a and 27b of the first wire gripper are sandwiched by the two plate portions 57a and 57b of the bar member. are connected via the pin member 40.

In the embodiment, the configuration of the connection portion between the first wire gripper 2 and the rod member 5 is not limited to the examples shown in FIGS. 8 and 9 .

In the embodiment, any one of the above-described first to fourth structural examples may be employed. Alternatively, in the embodiment, two constitutional examples of the first to fourth constitutional examples described above may be employed in combination. In other words, in the embodiment, the first configuration example and the second configuration example, the first configuration example and the third configuration example, the first configuration example and the fourth configuration example, the second configuration example and the third configuration example, and the second configuration example The configuration example and the fourth configuration example, or the third configuration example and the fourth configuration example may be employed. Alternatively, in the embodiment, three structural examples from among the first to fourth structural examples described above may be employed in combination. In other words, in the embodiment, a configuration example other than the first configuration example, a configuration example other than the second configuration example, a configuration example other than the third configuration example, or a configuration example other than the fourth configuration example may be employed. Alternatively, in the embodiment, all of the first to fourth structural examples described above may be employed.

(Configuration other than the connection between the first wire gripper and the bar member)

With reference to FIGS. 10 to 12 , an example of a configuration other than the connecting portion between the first wire gripper 2 and the rod member 5 will be described in more detail. 10 is a schematic front view of the electric wire cutting tool 1 in the embodiment. 11 is a schematic plan view of the electric wire cutting tool 1 in the embodiment. Fig. 12 is an arrow E-E direction diagram in Fig. 10 .

(First wire gripper (2))

The first wire gripper 2 includes a wire gripper 23, a parallel link mechanism G1, and a gripper side connecting portion G2 that is a portion connected to the rod member 5.

The wire gripping portion 23 is a portion that grips the wire W. The wire gripping portion 23 includes an upper gripping piece 23a and a lower gripping piece 23b. The distance between the lower surface of the upper gripping piece 23a and the upper surface of the lower gripping piece 23b is changed by the action of the parallel link mechanism G1. As the distance between the lower surface of the upper gripping piece 23a and the upper surface of the lower gripping piece 23b is reduced, the electric wire W is gripped between the lower surface of the upper gripping piece 23a and the upper surface of the lower gripping piece 23b. do.

The parallel link mechanism G1 includes an upper holding piece 23a, a first swinging member 24a, a second swinging member 24b, and a lower supporting member 25. The upper gripping piece 23a and the lower support member 25 are disposed to face each other, and the first swing member 24a and the second swing member 24b are disposed to face each other, and these four members provide a parallel link. A mechanism G1 is constituted. The upper gripping piece 23a and the first swinging member 24a are connected so as to be relatively rotatable on the first shaft AX1, and the upper gripping piece 23a and the second swinging member 24b are connected to the second swinging member 24b. In axis AX2, it is connected so that relative rotation is possible. Further, the lower supporting member 25 and the first rocking member 24a are connected so as to be relatively rotatable about the third axis AX3, and the lower supporting member 25 and the second rocking member 24b are In the 4th axis|shaft AX4, it is connected so that relative rotation is possible.

The first swing member 24a includes a first extension portion 240a that extends toward the rod member 5 from the first axis AX1. In the fifth shaft AX5 disposed on the first extension portion 240a, the first rocking member 24a is rotatably connected to the lower gripping piece 23b. In addition, the second rocking member 24b includes a second extension portion 240b that extends toward the rod member 5 side from the second axis AX2. In the sixth shaft AX6 disposed on the second extension portion 240b, the second rocking member 24b is rotatably connected to the lower gripping piece 23b.

In the example described in FIG. 10 , the gripper side connection portion G2 connected to the rod member 5 includes the lower support member 25 . Alternatively, the gripper side connection portion G2 and the lower supporting member 25 may be separate bodies. The gripper side connection part G2 and the rod member 5 are rotatably connected by the pin member 40 mentioned above.

An example of a mechanism by which the first wire gripper 2 grips the wire W is described. An electric wire W is disposed between the upper gripping piece 23a and the lower gripping piece 23b of the first electric wire gripper 2, and the upper gripping piece 33a and the lower gripping piece 33a of the second electric wire gripper 3 An electric wire W is disposed between the pieces 33b. Subsequently, the elastic rod member 5 is contracted. When the elastic rod member 5 is contracted, the lower support member 25 is pulled toward the rod member 5 side. When the lower support member 25 is pulled toward the rod member 5 side, the fifth axis AX5 moves upward while rotating around the first axis AX1 by the parallel link mechanism G1 The sixth axis AX6 moves upward while rotating around the second axis AX2. In this way, the distance between the lower surface of the upper gripping piece 23a and the upper surface of the lower gripping piece 23b is reduced, and the electric wire W is gripped between the upper gripping piece 23a and the lower gripping piece 23b. .

Also, the first wire gripper 2 may include a gripper locking member 29 . The gripper lock member 29 is a member for maintaining the state in which the electric wire W is gripped between the upper gripping piece 23a and the lower gripping piece 23b, in other words, the upper gripping piece 23a and the lower gripping piece 23b. It is a member that regulates the distance between the pieces 23b.

In the example described in FIG. 10 , the gripper lock member 29 is attached to the lower support member. Further, the gripper lock member 29 can be closely spaced from the operation portion 29a (eg, the operation ring) and the parallel link mechanism G1 (more specifically, the first swing member 24a). Equip a stepping stone. Then, by rotating the operation unit 29a (eg, operation ring) using a remote operation tool, the advancing rod comes into contact with the first swinging member 24a. As a result, the movable range of the parallel link mechanism is limited. In this way, the distance between the upper gripping piece 23a and the lower gripping piece 23b cannot be widened beyond a predetermined distance.

With the electric wire W disposed between the upper gripping piece 23a and the lower gripping piece 23b, by operating the gripper lock member 29, the upper gripping piece 23a and the lower gripping piece 23b are separated. The gripping state of the electric wire W by the is maintained. For this reason, the first wire gripper 2 is prevented from being unintentionally detached from the wire W. The gripper lock member 29 can be suitably utilized when the wire cutting work using the wire cutting tool 1 is temporarily suspended.

(Second wire gripper (3))

The configuration of the second wire gripper 3 is the same as that of the first wire gripper 2 except that the second wire gripper 3 cannot swing relative to the rod member 5. Therefore, the description of the second wire gripper 3 is omitted.

(Bar member (5))

The rod member 5 includes an outer member 51, an inner member 52, and a second operation unit 53. The second operation part 53 is a part for manipulating the relative movement of the inner member 52 with respect to the outer member 51 . The second operation unit 53 is connected to the rod member 5 and is rotatable around a rotation axis R2 parallel to the Z direction. The second operation unit 53 includes a coupling unit 530 to which the distal end of the remote operation member is coupled.

An example of a mechanism for contracting the telescopic rod member 5 using a remote control member will be described. As an example, (A) the second operation unit 53 is provided with a first bevel gear that rotates around the rotating shaft R2 together with the second operation unit, and (B) the outer member 51 includes the first bevel gear and A second bevel gear connected to be able to transmit a load is disposed, (C) the second bevel gear rotates around the longitudinal axis L1 of the rod member 5 together with a threaded rod having an external thread disposed on the outer circumference, , (D) It is assumed that the inner member 52 is screwed to the threaded rod. In this case, when the second manipulation unit 53 is rotated around the rotating shaft R2 by the remote control member, the first bevel gear rotates around the rotating shaft R2, and the second bevel gear moves along the longitudinal axis L1. rotate around When the second bevel gear rotates around the longitudinal axis L1, the threaded rod rotates around the longitudinal axis L1. When the threaded rod rotates around the longitudinal axis L1, the inner member 52 threadedly engaged with the threaded rod moves in a direction drawn toward the outer member 51. In this way, the rod member 5 contracts.

Further, in the embodiments, the mechanism for contracting the rod member is not limited to the above mechanism.

(Wire support (6))

The wire holder 6 is a member that supports the wire W in the region between the first wire gripper 2 and the second wire gripper 3 . In the example described in FIG. 10 , the electric wire cutting tool 1 includes a first electric wire holder 6a and a second electric wire holder 6b. The first wire holder 6a is disposed between the first wire gripper 2 and the second operation unit 53, and the second wire holder 6b is provided between the second operation unit 53 and the second operation unit 53. It is disposed between the two wire grippers 3. Alternatively, the second electric wire holder 6b may be disposed between the first electric wire holder 6a and the second operation unit 53 .

The first wire holder 6a is attached to the rod member 5 (more specifically, the inner member 52) so as to be rotatable around the longitudinal axis L1 of the rod member 5. .

As shown in FIG. 12 , the first wire holder 6a has an accommodating space SP for accommodating the electric wire W. As shown in FIG. In the example described in FIG. 12 , the first wire holder 6a includes a frame member 61a and an opening/closing member 62a capable of opening and closing the opening of the frame member 61a. The accommodation space SP is defined by the frame member 61a and the opening and closing member 62a.

Referring to Fig. 10, the second wire holder 6b is attached to the rod member 5 (more specifically, the outer member 51). The second wire holder 6b is non-rotatable around the longitudinal axis L1 of the rod member 5. Alternatively, the second wire holder 6b is mounted to the rod member 5 so as to be rotatable around the longitudinal axis L1 of the rod member 5, and the first wire holder 6a is , You may attach to the rod member 5 non-rotatably around the longitudinal axis L1 of the rod member 5. Also generally, the rod member 5 is rotatable around the longitudinal axis L1 of the rod member 5, both of the first wire supporter 6a and the second wire supporter 6b. may be installed on

The structure of the second wire holder 6b is the same as that of the first wire holder 6a. Therefore, description of the structure of the second electric wire holder 6b is omitted.

It is assumed that the first end of the electric wire after being cut is spaced apart from the second end of the electric wire after being cut using the first wire holder 6a and the second wire holder 6b. In this case, first, the rod member 5 is set so that the wire W passes through the accommodating space SP of the first wire holder 6a and the accommodating space of the second wire holder 6b. move in the Y direction. By the movement of the rod member 5, the electric wire W passes through the opening of the frame member 61a of the first wire holder 6a, and the accommodating space of the first wire holder 6a. (SP) is accepted. Similarly, by the movement of the rod member 5, the electric wire W is received in the accommodating space of the second wire holder 6b via the opening of the frame member of the second wire holder 6b. is brought in After that, in the region between the first wire holder 6a and the second wire holder 6b, the wire W is cut. Subsequently, by rotating the first wire holder 6a around the longitudinal axis L1 of the rod member 5 (for example, by rotating it 180 degrees), the first end of the wire after cutting, It moves downward of the rod member 5. In this way, the first end of the electric wire after being cut is separated from the second end of the electric wire after being cut.

In the example described in FIGS. 10 and 12 , the electric wire cutting tool 1 is provided with the third electric wire holder 6c. The third wire holder 6c is disposed on the opposite side of the rod member 5 to the first wire holder 6a. In the example described in FIG. 12 , the first wire holder 6a is disposed above the bar member 5, and the third wire holder 6c is disposed below the bar member 5.

In the example described in FIG. 12, when viewed from the side (ie, when the first wire holder 6a and the third wire holder 6c are viewed along the longitudinal axis L1 of the rod member 5) In this case), the center C1 of the first wire holder 6a and the center C2 of the third wire holder 6c are along the Y direction (that is, along the swing central axis S1). direction) is different. In addition, the center C1 of the first wire supporter 6a means the center of the accommodation space SP defined by the frame member 61a and the opening and closing member 62a, and the third wire supporter The center of (6c) means the center of the accommodating space SP2 defined by the frame member 61c and the opening/closing member 62c.

Further, in the example described in FIG. 12 , when viewed from the side, the opening of the frame member 61a and the opening of the frame member 61c are on the same side (in the example described in FIG. 12 , the right side of the rod member 5) are placed

In addition, in the example described in FIG. 12 , the first wire holder 6a and the third wire holder 6c are connected to a common base 64, and the base 64 is a rod. It is attached to the rod member 5 so as to be rotatable around the longitudinal axis L1 of the member 5 .

In the example shown in FIG. 12 , the electric wire cutting tool 1 is arranged on the opposite side of the first wire holder 6a and the rod member 5 to the first wire holder 6a. A wire support 6c is provided. For this reason, based on the thickness or arrangement of the wire to be cut, the wire holder used in the wire cutting operation can be selected from the first wire holder 6a or the third wire holder 6c.

Using the electric wire cutting tool of the present invention, it is possible to perform wire cutting work by selecting an optimal method among the first method (insulation rod method) or the second method (batch method). Therefore, it is useful for manufacturers of electric wire cutting tools and those who perform electric wire cutting work.

1: wire cutting tool 2: first wire gripping tool
3: second wire gripper 5: bar member
5a: stopper 6: wire support
6a: first wire support 6b: second wire support
6c: Third electric wire support 7: Lock member
7a: receiving part 7b: shaft part
7c: protrusion 8: pin
9: guard member 9b: female thread
23: wire gripping part 23a: upper gripping piece
23b: lower gripping piece 24a: first rocking member
24b: second rocking member 25: lower supporting member
28: through hole 29: gripper lock member
29a: operation part 33a: upper gripping piece
33b: lower gripping piece 40: pin member
40a: shaft part 40b: head part
51: outer member 52: inner member
53: second control unit 58: through hole
61a, 61c: frame member 62a, 62c: opening and closing member
64 base 71 support member
71a: receiving portion 71b: male thread
72: washer 74: first control unit
76: elastic pressing member 92: stopper
240a: first extension 240b: second extension
530: coupling part 712: shallow groove
714: deep groove 740: receiving portion
G1: Parallel Link Mechanism G2: Gripper Side Connection
S1: pivot axis W: wire

Claims (15)

A first wire gripper;
A second electric wire holding tool;
An extensible rod member disposed between the first wire gripper and the second wire gripper;
An electric wire support connected to the rod member and capable of rotating around an axis in the longitudinal direction of the rod member;
Equipped with a lock member,
The first wire gripper is capable of swinging around a swinging central axis perpendicular to the longitudinal axis with respect to the rod member,
The locking member prohibits swinging of the first wire gripper with respect to the rod member in a locked state, and allows swinging of the first wire gripper with respect to the rod member in an unlocked state, ,
The wire cutting tool, wherein the other end of the rod member is connected to the second wire gripper without swing. The method of claim 1,
The lock member is movable between a first position that prohibits swinging of the first wire gripper with respect to the rod member and a second position that allows swinging of the first wire gripper with respect to the rod member, wire cutting segment tool. The method of claim 2,
and an urging member for urging the lock member in a direction from the second position toward the first position. The method of claim 2,
The lock member is movable between the first position and the second position in a state in which the first wire gripper, the rod member, and the second wire gripper are arranged in a straight line, wire cutting segment tool. The method of claim 3,
The lock member is movable between the first position and the second position in a state in which the first wire gripper, the rod member, and the second wire gripper are arranged in a straight line, wire cutting segment tool. The method of claim 2,
The wire cutting tool, wherein the lock member is movable in a direction parallel to the swing central axis. The method of claim 3,
The wire cutting tool, wherein the lock member is movable in a direction parallel to the swing central axis. The method of claim 4,
The wire cutting tool, wherein the lock member is movable in a direction parallel to the swing central axis. The method of claim 5,
The wire cutting tool, wherein the lock member is movable in a direction parallel to the swing central axis. The method according to any one of claims 1 to 9,
Further comprising a guard member covering the side surface of the lock member,
The wire cutting tool, wherein the guard member is movable between a third position covering the side surface of the lock member and a fourth position exposing the side surface of the lock member. The method of claim 10,
The wire cutting tool, wherein the guard member includes a stopper for regulating movement of the lock member. delete delete delete delete

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