WO2019220524A1

WO2019220524A1 - Electric cable cutting tool

Info

Publication number: WO2019220524A1
Application number: PCT/JP2018/018689
Authority: WO
Inventors: 祐敬中澤; 明久松本; 猛樺澤; 政則後藤; 伸也岩田
Original assignee: 株式会社永木精機
Priority date: 2018-05-15
Filing date: 2018-05-15
Publication date: 2019-11-21
Also published as: CN112154584A; KR20210002700A; KR102543446B1; CN112154584B

Abstract

The purpose of the present invention is to safely and effectively perform a work for cutting electric cables by saving a load of a worker, and the present invention addresses the problem of providing an electric cable cutting tool which can appropriately select and perform either an insulated stick method (first working method) or a collective method (second working method) according to the surrounding situation of the electric cable to be cut. The electric cable cutting tool comprises a first electric cable clamp, a second electric cable clamp, an extensible stick member, and a lock member. The first electric cable clamp is oscillatable relative to the stick member. The lock member prevents the first electric cable clamp from oscillation relative to the stick member in a locked state and allows the first electric cable clamp to oscillate relative to the stick member in an unlocked state.

Description

Wire cutting tool

The present invention relates to a wire cutting tool.

The wire cutting method is known. In the wire cutting method, a wire cutting tool is used. The electric wire cutting tool includes a first electric wire gripping tool, a second electric wire gripping tool, and a telescopic rod disposed between the first electric wire gripping tool and the second electric wire gripping tool. When the electric wire is cut using the electric wire cutting tool, first, the first portion of the electric wire is grasped by the first electric wire gripping tool, and the second portion of the electric wire is grasped by the second electric wire gripping tool. Secondly, the extendable rod is contracted so that the distance between the first wire gripping tool and the second wire gripping tool becomes small. As a result of the contraction, the electric wire located between the first electric wire gripping tool and the second electric wire gripping tool is loosened. Third, the electric wire is cut at a position between the first electric wire gripping tool and the second electric wire gripping tool (position where the electric wire is slack).

As a related technique, Patent Document 1 describes a hot line cutting tool. In the hot wire cutting tool described in Patent Document 1, the first electric wire gripping tool is swingable with respect to a telescopic rod. When performing the cutting operation of the electric wire using the hot wire cutting tool described in Patent Document 1, first, the first electric wire gripping tool is lifted using the insulating rod, and the first electric wire gripping tool is used as the electric wire. Mounting. Second, the extendable rod is swung with respect to the first electric wire gripper. Third, the electric wire is supported by the electric wire support tool in the region between the first electric wire gripping tool and the second electric wire gripping tool. Fourth, the second electric wire gripper is attached to the electric wire. Fifth, the electric wire is loosened by contracting the extendable rod so that the first electric wire gripper approaches the second electric wire gripper. Sixth, the electric wire is cut at a position between the first electric wire gripping tool and the second electric wire gripping tool (position where the electric wire is slack). The construction method includes a step of swinging the extendable rod relative to the first wire gripper. The construction method is referred to as “insulating rod method” or “first construction method”.

Further, Patent Document 2 describes an inter-column retaining tool for wire separation work. In the tool described in Patent Document 2, the first electric wire gripping tool, the extendable / contracting rod, and the second electric wire gripping tool are arranged on a straight line. In the tool described in Patent Document 2, the extendable rod cannot swing relative to the first wire gripper, and swings relative to the second wire gripper. I can't. When performing the cutting operation of the electric wire using the tool described in Patent Document 2, first, the entire electric wire cutting tool is lifted using a yatco or the like, and the first electric wire holding tool and the second electric wire holding tool. In the region between the wires, the electric wires are supported by the electric wire support. Second, the first electric wire gripping tool is attached to the electric wire, and the second electric wire gripping tool is attached to the electric wire. Third, the electric wire is loosened by contracting the extendable rod so that the first electric wire gripper approaches the second electric wire gripper. Fourth, the electric wire is cut at a position between the first electric wire gripper and the second electric wire gripper (position where the electric wire is slack). The construction method does not include a step of swinging the extendable rod relative to the first wire gripper. This construction method will be referred to as “batch method” or “second construction method”.

JP 2010-88256 A JP2015-70651A

By the way, the high-voltage line, which is the object of the cutting work, often has three electric wires arranged horizontally, and a low-voltage line is already installed below it. For this reason, when attaching the wire cutting tool to the electric wire, the bucket of the aerial work vehicle is brought close to the position directly below the high-voltage line, and one worker approaches the electric wire from the bucket of the aerial work vehicle. doing. At that time, the worker lifts the long and heavy wire cutting tool to the position of the overhead wire with an insulating rod or Yatco. When an operator extends his hand from within a narrow bucket and operates an overhead wire cutting tool, he loses his balance and drops the electrical wire cutting tool to the ground, or loses his own posture and gets injured. Careful work was always required to prevent this from happening.

In the insulation rod method, the operator holds the insulation rod by hand, lifts the first wire gripper (first camler) using the insulation rod, and attaches the first wire gripper (first camler) directly to the wire. Yes. In this method, even if the existing low-voltage line is congested and the bucket cannot enter directly under the high-voltage line, the operator takes a somewhat unreasonable posture, so that the first position located at the tip of the wire cutting tool is The camler can be securely attached to the electric wire. However, in the first work process of the cutting work, the attachment position of the electric wire cutting tool is determined by gripping the electric wire with the first camler. For this reason, it was not an easy task to attach the first camler with high accuracy to the position aimed by the operator while losing his posture from a slightly separated position. In addition, it is time-consuming work for the operator to shift and adjust the attachment position of the wire cutting tool from the bucket in the subsequent work process, and it cannot be said that the work is efficient.

On the other hand, in the collective method, the wire cutting tool is attached to the wire by lifting up the hand with the hand while keeping the balance while holding the wire cutting tool with the Yatsuko. In this method, the wire cutting tool is temporarily attached at a position where the operator can most easily attach the wire depending on the positional relationship between the bucket and the wire to be cut. And after temporary attachment of an electric wire cutting tool, it is possible to move the electric wire cutting tool horizontally on an electric wire to an electric wire cutting location. In particular, when three high-voltage lines are cut simultaneously, it is necessary to shift the cutting location between adjacent electric wires, so that it is effective that the wire cutting tool can be moved horizontally. However, the operator needs to lift the electric wire cutting tool with the Yatsuko overhead in the first work process. For this reason, when the electric wire which is the object of the bucket and the cutting work is separated, the burden on the worker's body has been large. Also, if the wire is inclined and wired, after the wire cutting tool is attached to the wire in the first work process, the wire cutting tool will slide down along the wire inclination direction due to gravity. It was necessary to temporarily fix the wire cutting tool after temporary mounting. And temporarily fixing an electric wire cutting tool after temporary attachment was not an efficient operation.

In the conventional wire cutting tool, if only tools suitable for the insulation rod method are prepared, the insulation rod method must be implemented under the situation where the collective method is suitable. Alternatively, if the insulation rod method is not suitable, the wire cutting tool for the collective method must be returned. On the other hand, when only tools suitable for the collective method are prepared, the collective method must be carried out in a situation where the insulating rod method is suitable. Alternatively, if the batch method is not suitable, the wire cutting tool for the insulating rod method must be returned. Of course, if the construction site has both a tool suitable for the insulating rod method and a tool suitable for the collective method, it is possible to select a more suitable method. However, in this case, it is necessary to prepare both tools and bring both tools to the construction site.

Therefore, the present invention aims to solve these problems, reduce the burden on the operator, and to safely and efficiently perform the cutting work on the wire, and insulate the wire according to the situation around the wire to be cut. An object of the present invention is to provide a wire cutting tool that can be executed by appropriately selecting the rod method (first method) and the batch method (second method).

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

(1) a first wire gripper;
A second wire gripper;
A telescopic rod member disposed between the first electric wire gripping tool and the second electric wire gripping tool;
An electric wire support connected to the bar member and rotatable about a longitudinal axis of the bar member;
A locking member,
The first wire gripper is swingable about a swing center axis perpendicular to the longitudinal axis with respect to the rod member,
The lock member prohibits swinging of the first wire gripping tool with respect to the rod member in the locked state, and allows swinging of the first wire gripping tool with respect to the rod member in the unlocked state. tool.
(2) The lock member includes a first position for prohibiting the swing of the first wire gripper relative to the bar member, and a second position allowing the swing of the first wire gripper relative to the bar member. The wire cutting tool according to (1), wherein the wire cutting tool is movable between.
(3) The wire cutting tool according to (2), further including a biasing member that biases the lock member in a direction from the second position toward the first position.
(4) The lock member may be disposed between the first position and the second position in a state where the first electric wire gripping tool, the rod member, and the second electric wire gripping tool are arranged in a straight line. The wire cutting tool according to (2) or (3).
(5) The wire cutting tool according to any one of (2) to (4), wherein the lock member is movable in a direction parallel to the swing center axis.
(6) It further includes a first operation part for operating the lock member,
The wire cutting tool according to any one of (1) to (5), wherein the first operation portion includes a receiving portion that can receive an end portion of a remote control rod.
(7) The electric wire cutting tool according to (6), wherein the first operation unit is rotatable around a rotation axis perpendicular to the oscillation central axis.
(8) The area of the receiving portion in plan view changes as the first operating portion rotates around the rotation axis,
The wire cutting tool according to (7), wherein the area of the receiving portion in plan view is maximized or minimized when the lock member is in the locked position.
(9) A support member for supporting the lock member is further provided,
The lock member includes a protruding portion that protrudes in a radially outward direction of the lock member,
The support member is
A shallow groove engageable with the protrusion of the locking member;
The wire cutting tool according to any one of (6) to (8), further including a deep groove that can be engaged with the protruding portion of the lock member.
(10) It further includes a guard member that covers a side surface of the lock member,
The guard member is movable between a third position that covers the side surface of the lock member and a fourth position that exposes the side surface of the lock member. Any one of (1) to (9) above The wire cutting tool described in 1.
(11) The wire cutting tool according to (10), wherein the guard member includes a stopper that restricts movement of the lock member.

According to the present invention, it is possible to provide an electric wire cutting tool that can be executed by appropriately selecting the insulating rod method (first method) and the batch method (second method) according to the surrounding conditions of the wire to be cut. As a result, it is possible to reduce the burden on the operator and perform the work of cutting the electric wires safely and efficiently.

FIG. 1 is a schematic front view of a wire cutting tool in the embodiment. FIG. 2 is a schematic front view of the wire cutting tool in the embodiment. FIG. 3 is a schematic plan view of the wire cutting tool in the embodiment. FIG. 4 is a schematic front view showing an example of the locking mechanism. FIG. 5 is a cross-sectional view taken along the line AA in FIG. 6 is a cross-sectional view taken along the line BB in FIG. 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. FIG. 9 is an enlarged view of a region indicated by an arrow D in FIG. FIG. 10 is a schematic front view of the wire cutting tool in the embodiment. FIG. 11 is a schematic plan view of the wire cutting tool in the embodiment. 12 is a view taken along the line EE in FIG.

Hereinafter, the wire cutting tool in the embodiment will be described in detail with reference to the drawings. In the present specification, members having the same type of function are given the same or similar reference numerals. Further, repeated description of members with the same or similar reference numerals may be omitted.

(Definition of direction)
In this specification, the direction along the longitudinal axis L1 of the bar member 5 is the “X direction”, the direction along the swing center axis S1 between the bar member 5 and the first wire gripper 2 is the “Y direction”, A direction perpendicular to both the X direction and the Y direction is defined as a Z direction.

(Embodiment)
With reference to FIG. 1 thru | or FIG. 4, the wire cutting tool 1 in embodiment is demonstrated. 1 and 2 are schematic front views of the wire cutting tool 1 according to the embodiment. 1 shows a state in which the first electric wire gripping tool 2 cannot swing with respect to the bar member 5, and FIG. 2 shows a state in which the first electric wire gripping tool 2 can swing with respect to the bar member 5. Show. FIG. 3 is a schematic plan view of the wire cutting tool 1 in the embodiment. FIG. 4 is a schematic front view showing an example of the locking mechanism.

The electric wire cutting tool 1 is a tool used when cutting an electric wire and performing an operation of separating one end and the other end of the cut electric wire. Since the wire cutting tool itself is not provided with a cutting blade for cutting the electric wire, the wire cutting tool 1 may be referred to as a wire cutting aid. In addition, the wire cutting tool itself may be provided with a cutting blade for cutting the wire.

With reference to FIG. 1, the wire cutting tool 1 is disposed between the first wire gripping tool 2, the second wire gripping tool 3, and the first wire gripping tool 2 and the second wire gripping tool 3. A telescopic rod member 5, an electric wire support 6 connected to the rod member 5, and a lock member 7 are provided.

The first electric wire gripping tool 2 is an instrument for gripping the first portion P1 of the electric wire W, and the second electric wire gripping tool 3 is an instrument for gripping the second portion P2 different from the first portion P1 of the electric wire W. is there.

The extendable rod member 5 is a member for changing the distance between the first electric wire gripping tool 2 and the second electric wire gripping tool 3. In the example illustrated in FIG. 1, one end of the bar member 5 is connected to the first wire gripping tool 2 so as to be swingable with respect to the first wire gripping tool 2. That is, the bar member 5 can swing around the swing center axis S 1 with respect to the first wire gripper 2. In the example shown in FIG. 1, the other end of the bar member 5 is connected to the second wire gripper 3. The connection between the bar member 5 and the second electric wire gripping tool 3 is preferably a non-oscillating connection.

In the example illustrated in FIG. 1, the bar member 5 includes an outer member 51 (for example, a first elongated member having a cylindrical shape) and an inner member 52 (for example, a second elongated member having a cylindrical shape or a column shape). With. A part of the inner member 52 is inserted into the outer member 51. The inner member 52 moves relative to the outer member 51 in the direction along the longitudinal axis L 1 of the bar member 5, whereby the distance between the first wire gripping tool 2 and the second wire gripping tool 3. Changes.

The electric wire support 6 is a member that supports the electric wire W in the region between the first electric wire gripping tool 2 and the second electric wire gripping tool 3. The electric wire support 6 may be a member that supports the electric wire by directly contacting the electric wire W, or may be a member that defines the position of the electric wire W by surrounding the electric wire W. In the example illustrated in FIG. 1, the portion of the electric wire W located between the first portion P 1 and the second portion P 2 passes through the receiving space SP of the electric wire support 6. As a result, the position of the electric wire W is defined by the electric wire support 6. The receiving space SP will be described later.

In the example shown in FIG. 1, the number of the wire supporters 6 is three (the first wire supporter 6a, the second wire supporter 6b, and the third wire supporter 6c). Alternatively, the number of the wire supports 6 may be one, two, or four or more.

At least one of the electric wire supports 6 is rotatable around the longitudinal axis L1 of the bar member 5. In the example described in FIG. 1, the first wire support 6 a is rotatable around the longitudinal axis L 1. The first electric wire support 6a supports one end of the electric wire W after the electric wire W is cut (in addition, “supporting the end” means “specifying the position of the end”). Included). When the first wire support 6a is rotated around the longitudinal axis L1, the position of one end of the wire W changes. For example, it is assumed that the electric wire W is cut at a position indicated by an arrow H, and the first electric wire support 6a is rotated 180 degrees around the longitudinal axis L1 from the state shown in FIG. In this case, the position of one end of the electric wire W changes from a position above the bar member 5 to a position below the bar member 5. In this way, one end of the electric wire W can be separated from the other end of the electric wire W.

Subsequently, the lock member 7 will be described. In the example shown in FIG. 1, the first wire gripper 2 can swing with respect to the bar member 5 around a swing center axis S1 perpendicular to the longitudinal axis L1 of the bar member. When the lock member 7 is in the locked state, relative swinging (swinging about the swinging center axis S1) between the first wire gripper 2 and the bar member 5 is prohibited, and the locking member 7 is not locked. When in the state, relative swinging between the first wire gripping tool 2 and the bar member 5 (swinging around the swinging center axis S1) is allowed.

Any mechanism can be adopted as the lock mechanism in which the lock member 7 prohibits relative swinging between the first wire gripper 2 and the rod member 5. For example, by inserting a lock member (for example, a lock pin) through the hole provided in the first electric wire gripping tool 2 and the hole provided in the bar member 5, the above-described relative swinging is prohibited. Also good. In addition, at least one of the hole provided in the 1st electric wire gripper 2 and the hole provided in the rod member 5 may be substituted by the recessed part. Alternatively, as shown in FIG. 4, the lock mechanism may be a lock mechanism that uses engagement / disengagement between the hook member that is the lock member 7 and the pin 8. In the example shown in FIG. 4, the hook member is rotatably provided on the first electric wire gripping tool 2, and the pin 8 is provided on the rod member 5. Alternatively, the hook member may be rotatably provided on the bar member 5, and the pin 8 may be provided on the first electric wire gripping tool 2.

Suppose that the wire cutting tool 1 is used when the lock member 7 is in an unlocked state. In this case, relative swinging between the first wire gripper 2 and the bar member 5 is allowed. For this reason, when carrying out the work of separating the electric wires, it is possible to execute a method including a step of swinging the bar member 5 relative to the first electric wire gripper 2 (insulated bar method or first method). .

In the insulating rod method, for example, the following seven steps are executed. In the first step, the first electric wire gripping tool 2 is lifted using an insulating rod, and the first electric wire gripping tool 2 is attached to the electric wire W (in other words, the first electric wire gripping tool 2 is disposed on the electric wire). In the second step, the extendable rod member 5 is swung with respect to the first wire gripper 2. In the third step, the electric wire W is supported by the electric wire support 6 in the region between the first electric wire gripping tool 2 and the second electric wire gripping tool 3 (in this specification, “support the electric wire”. Includes “defining the position of the wire”). In the fourth step, the second electric wire gripping tool 3 is attached to the electric wire W (in other words, the second electric wire gripping tool 3 is disposed on the electric wire). In the fifth step, the extendable rod member 5 is contracted so that the first electric wire gripping tool 2 approaches the second electric wire gripping tool 3. By execution of the fifth step, the electric wire W is loosened. In the sixth step, the electric wire W is cut at a position between the first electric wire gripping tool 2 and the second electric wire gripping tool 3 (position where the electric wire is slack). In the seventh step, the wire support 6 is rotated around the bar member 5. By performing 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 lock member 7 is in the locked state. In this case, relative swinging between the first wire gripper 2 and the bar member 5 is prohibited. For this reason, when carrying out the work of separating the electric wires, it is possible to execute a construction method in which the rod member 5 is fixed to the first electric wire gripper 2 so as not to swing (batch method or second construction method).

In the batch method, for example, the following five steps are executed. In the first step, the entire wire cutting tool 1 is lifted using a Yatco or the like, and the wire W is supported by the wire support 6 in the region between the first wire gripping tool 2 and the second wire gripping tool 3. . In the second step, the first electric wire gripping tool 2 is attached to the electric wire W (in other words, placed on the electric wire), and the second electric wire gripping tool 3 is attached to the electric wire W (in other words, arranged on the electric wire). To do). In the third step, the extendable rod member 5 is contracted so that the first wire gripping tool 2 approaches the second wire gripping tool 3. By executing the third step, the electric wire W is loosened. In the fourth step, the electric wire W is cut at a position between the first electric wire gripping tool 2 and the second electric wire gripping tool 3 (position where the electric wire is slack). In the fifth step, the wire support 6 is rotated around the bar 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 wire cutting tool in the embodiment includes a lock member. For this reason, it is possible to selectively execute the insulating rod method and the collective method using the wire cutting tool in the embodiment. For this reason, it is not necessary to execute the collective method under a situation where the insulation rod method is suitable, and it is not necessary to execute the insulation rod method under a situation where the collective method is suitable. Moreover, it is not necessary to prepare both a wire cutting tool suitable for the insulating rod method and a wire cutting tool suitable for the collective method.

(Optional additional configuration examples)
Subsequently, an optional additional configuration example that can be adopted in the embodiment will be described.

(First configuration example)
With reference to FIG. 5 and FIG. 6, an optional first configuration example that can be adopted in the embodiment will be described. FIG. 5 is a cross-sectional view taken along the line AA in FIG. 6 is a cross-sectional view taken along the line BB in FIG. 5 shows a state when the lock member 7 is in the locked position, and FIG. 6 shows a state where the lock member 7 is in the unlocked position.

In the example shown in FIG. 5, the lock member 7 is in the first position where the swing of the first wire gripper 2 relative to the rod member 5 is prohibited. On the other hand, in the example illustrated in FIG. 6, the lock member 7 is in the second position that allows the first wire gripper 2 to swing relative to the rod member 5. The lock member 7 is movable between the first position and the second position. In the first configuration example, each of the first position and the second position means a position in the Y direction of the lock member 7 (that is, a position in the direction along the longitudinal direction of the lock member 7).

5 and 6, the lock member 7 is a pin member that can be inserted into a hole (50a, 50b) provided in at least one of the first wire gripper 2 or the bar member 5. Of the cross-sectional shape of the pin member (the cross-sectional shape perpendicular to the oscillation center axis S1), the cross-sectional shape of the portion inserted into the hole (50a, 50b) is preferably a circular shape. However, the cross-sectional shape of the pin member may be other than a circular shape.

In the example shown in FIG. 5 (that is, in the locked state), the lock member 7 is inserted into the holes (50a, 50b) and is in contact with the lower surface (20a, 20b) of the first wire gripper 2. . As a result, the first wire gripper 2 cannot swing downward with respect to the bar member 5. In addition, in the example shown in FIG. 1, the end of the first electric wire gripping tool 2 is in contact with a stopper 5 a provided on the bar member 5, so that the first electric wire gripping tool 2 is attached to the bar member 5. On the other hand, it cannot swing upward. Thus, swinging of the first wire gripping tool 2 with respect to the bar member 5 is prohibited.

Alternatively, the first wire gripper 2 may be provided with holes, the rod member 5 may be provided with holes (50b or the like), and a lock member 7 (for example, a lock pin) may be inserted through these holes. Also in this case, in the locked state, the first wire gripper 2 cannot swing downward with respect to the bar member 5 and cannot swing upward.

5 and 6, the first electric wire gripping tool 2 is arranged inside the bar member 5. Alternatively, the bar member 5 may be disposed inside the first electric wire gripping tool 2. In this case, instead of providing holes (50a, 50b) in the rod member 5, holes may be provided in the first electric wire gripping tool 2. In the locked state, the lock member 7 may be inserted into the hole of the first electric wire gripping tool 2 and may come into contact with the upper surface of the bar member 5.

5 and 6, the wire cutting tool 1 includes a support member 71 that supports the lock member 7. As shown in FIG. 5, the shape of the support member 71 may be a bottomed cylindrical shape or other shapes. In the example described in FIGS. 5 and 6, the support member 71 is fixed to the bar member 5. Alternatively, when the first electric wire gripping tool 2 is disposed outside the bar member 5, the support member 71 may be fixed to the first electric wire gripping tool 2. Further alternatively, the support member 71 may be omitted. When the support member 71 is omitted, the lock member 7 can be separated from the wire cutting tool 1 in the unlocked state.

5 and 6, the support member 71 is screwed into the bar member 5, and a washer 72 is disposed between the support member 71 and the bar member 5. Alternatively, the support member 71 may be fixed to the bar member 5 or the like by a method other than screwing.

In the first configuration example, the wire cutting tool 1 may include a biasing member 76 (for example, a spring such as a coil spring) that biases the lock member 7 in the direction from the second position toward the first position. Good. In the example described in FIGS. 5 and 6, the urging member 76 is disposed inside the support member 71. The urging member 76 may be disposed between the receiving portion 71a of the support member 71 and the receiving portion 7a of the lock member 7 (see FIG. 6).

When the wire cutting tool 1 includes the urging member 76 that urges the lock member 7 in the direction from the second position toward the first position, when the lock member 7 is moved from the second position to the first position. In addition, it is not necessary to continuously apply an external force to the lock member 7. For this reason, the operation for moving the lock member 7 from the second position to the first position becomes easy. Further, when the lock member 7 is in the first position, the lock member 7 is effectively maintained in the first position by the biasing member 76. For this reason, the lock by the lock member 7 is not released unintentionally. For example, it is assumed that the lock by the lock member 7 is unintentionally released when the wire cutting tool is transported. In this case, the first electric wire gripping tool 2 may swing with respect to the bar member 5 and the first electric wire gripping tool 2 may collide with the bar member 5 or other tools. As a result, the rod member 5 or other tools may be damaged. On the other hand, when the urging member 76 is provided, the lock is not released unintentionally. For this reason, when the wire cutting tool is transported, the first wire gripper 2 swings with respect to the bar member 5, so that the first wire gripper 2 collides with the bar member 5 or another tool. There is no.

In the first configuration example, the lock member 7 is in a state where the first electric wire gripping tool 2, the bar member 5, and the second electric wire gripping tool 3 are arranged in a straight line (that is, the state shown in FIG. 1). Preferably, it is movable between the first position and the second position.

The state where the first electric wire gripping tool 2, the bar member 5, and the second electric wire gripping tool 3 are arranged in a straight line is a state where the collective method can be executed. When the batch method is being executed, it may be difficult to continue the batch method. For example, after executing the first step (step of supporting the electric wire W by the electric wire support 6) in the collective method and attaching the first electric wire gripping tool 2 to the electric wire, the second electric wire gripping tool 3 is changed to the electric wire. It may happen that the work to be attached to cannot be performed. In this case, the lock member 7 is moved from the first position to the second position to enable relative swinging between the first wire gripping tool 2 and the bar member 5. That is, even when the batch method is being executed, that is, when the wire cutting tool is separated from the hand and supported by the overhead wire (in the air), the batch method can be interrupted and switched to the insulating rod method. . As a result, the work of attaching the second wire gripping tool 3 to the wire W can be completed.

As described above, the lock member 7 moves between the first position and the second position in a state where the first wire gripping tool 2, the bar member 5, and the second wire gripping tool 3 are arranged in a straight line. If possible, during the batch method, the batch method can be interrupted and switched to the insulating rod method.

In the first configuration example, the lock member 7 has the first position in the state “only” in which the first electric wire gripping tool 2, the bar member 5, and the second electric wire gripping tool 3 are arranged in a straight line. It may be movable between the second position. In this case, in a state where the first electric wire gripping tool 2, the bar member 5, and the second electric wire gripping tool 3 are not arranged in a straight line, the relative swinging of the first electric wire gripping tool 2 and the bar member 5 is performed. Movement is never prohibited. Therefore, there is no risk that the wire cutting tool 1 is used in a wrong state. For example, the state shown in FIG. 6 is a state where the first electric wire gripping tool 2, the bar member 5, and the second electric wire gripping tool 3 are not arranged in a straight line. In the state shown in FIG. 6, the first electric wire gripping tool 2 is located in the advance / retreat path of the lock member 7. For this reason, the lock member 7 cannot move between the first position and the second position. On the other hand, the state shown in FIG. 5 is a state in which the first electric wire gripping tool 2, the bar member 5, and the second electric wire gripping tool 3 are arranged on a straight line. In the state shown in FIG. 5, the member that prevents the movement of the lock member 7 is not disposed in the advance / retreat path of the lock member 7. For this reason, the lock member 7 can be moved between the first position and the second position. Alternatively, when each of the first electric wire gripping tool 2 and the bar member 5 is provided with a hole capable of receiving the lock member 7, the first electric wire gripping tool 2, the bar member 5, and the second electric wire gripping tool The holes of the first electric wire gripping tool 2 and the holes of the bar member 5 may be aligned only in a state where 3 is arranged in a straight line. In this case, in a state where the first electric wire gripping tool 2, the bar member 5, and the second electric wire gripping tool 3 are not arranged in a straight line, the hole of the first electric wire gripping tool 2, the hole of the bar member 5, Is not consistent. For this reason, the lock member 7 cannot move between the first position and the second position.

In the first configuration example, the lock member 7 is preferably movable in a direction parallel to the swing center axis S1. A tensile tension mainly acts on the bar member 5 of the wire cutting tool 1. When the lock member 7 is movable in a direction perpendicular to the tension tension, that is, in a direction parallel to the swinging central axis S1, the lock member 7 is moved even under a situation where the tension tension is applied. It is easy to move between the first position and the second position.

(Second configuration example)
An optional second configuration example that can be employed in the embodiment will be described with reference to FIGS. FIG. 7 is a schematic perspective view schematically showing the periphery of the lock member 7. In FIG. 7, description of a guard member 9 described later is omitted.

In the second configuration example, the wire cutting tool 1 includes a first operation unit 74 that operates the lock member 7. And the 1st operation part 74 contains the receiving part 740 which can receive the edge part of a remote control stick | rod.

In the example shown in FIG. 5, the first operation unit 74 is provided at the end of the lock member 7. In the example illustrated in FIG. 5, the first operation unit 74 and the lock member 7 are separate, but the first operation unit 74 and the lock member 7 may be a single member that is integrally molded. In the example illustrated in FIG. 5, the first operation unit 74 and the lock member 7 are directly connected (for example, screwed), but the first operation unit 74 and the lock member 7 are linked members. It may be connected via a load transmission mechanism such as.

The receiving portion 740 has a shape that can receive an end portion (for example, a hook portion) of the remote control rod. The receiving portion 740 may have, for example, a ring shape (that is, a closed shape in which a hole is provided inside), a hook shape, or the like.

When the first operation portion 74 has the receiving portion 740 that can receive the end of the remote control rod, the operator can use the remote control rod even when the lock member 7 is in a position away from the operator. It is possible to move the lock member 7 by operating the first operating portion 74 using the. For example, the case where the wire cutting tool 1 is supported by an overhead wire is assumed. Even in this case, the operator can operate the first operation unit 74 from the work platform of the aerial work vehicle or the ground using the remote control rod.

In the second configuration example, the first operation unit 74 (more specifically, the receiving unit 740) may be rotatable around a rotation axis R1 parallel to the oscillation center axis S1. And if the 1st operation part 74 is rotated around the rotating shaft R1 (for example, rotated 90 degree | times), the lock member 7 may be comprised so that it may move to a non-lock position from a locked position. In the second configuration example, each of the lock position and the non-lock position means at least a rotation position around the rotation axis R1 of the lock member 7.

Suppose that the wire cutting tool 1 is supported by an overhead wire. In this case, in the state shown in FIG. 5, that is, in a state where the lock member 7 is in the locked position, the receiving portion 740 has a substantially linear shape in a bottom view. 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 receiving portion 740 has a generally ring shape in a bottom view. For this reason, the operator can easily grasp whether the lock member 7 of the wire cutting tool 1 supported by the overhead electric wire is in the locked position or in the unlocked position.

Furthermore, it explains 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 receiving unit 740 is projected onto the projection plane by parallel rays parallel to the Z direction. When the first operation unit 74 (receiving unit 740) is rotated about the rotation axis R1, the area (projected area) on which the receiving unit 740 is projected on the projection surface changes.

In the example shown in FIG. 5 (an example in which the lock member 7 is in the locked position), when the receiving unit 740 is projected onto the projection plane by parallel rays parallel to the Z direction, the projected area of the receiving unit 740 is minimized. On the other hand, in the example illustrated in FIG. 6 (an example in which the lock member 7 is in the unlocked position), when the receiving unit 740 is projected onto the projection plane by parallel light rays parallel to the Z direction, the projected area of the receiving unit 740 is maximum. It becomes. At this time, the ring shape of the receiving portion 740 can be easily grasped by bottom view. Alternatively, when the receiving portion 740 has a hook shape, the hook shape of the receiving portion 740 can be easily grasped in a bottom view.

From the viewpoint of visibility, it is preferable that the projection area of the receiving portion 740 is maximized or minimized when the lock member 7 is in the locked position. In other words, the area of the receiving portion 740 in the plan view changes as the first operating portion 74 rotates around the rotation axis R1, and the area of the receiving portion 740 in the plan view has the lock member 7 at the locked position. It is preferred that at some point it be maximum or minimum.

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

In the example shown in FIG. 7, a shallow groove 712 and a deep groove 714 are provided at the end 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 protruding portion 7c that protrudes in the radially outward direction of the locking member. When the protrusion 7c of the lock member 7 engages with the shallow groove 712, the lock member 7 is in the unlocked position. At this time, the bar member 5 can swing with respect to the first wire gripper 2. On the other hand, when the protrusion 7c of the lock member 7 is engaged with the deep groove 714, the lock member 7 is in the locked position. At this time, the bar member 5 cannot swing with respect to the first wire gripper 2.

In order to move the lock member 7 from the unlocked position to the locked position, the first operating portion 74 is moved in the Y direction against the urging force of the urging member 76, and the first operating portion 74 is moved. , Rotate around the rotation axis R1. When the position of the protrusion 7 c of the lock member 7 is aligned with the position of the deep groove 714, the lock member 7 is moved to the lock position (that is, the first position) by the urging force by the urging member 76. In order to move the lock member 7 from the locked position to the unlocked position, the first operation unit 74 is operated in the reverse order of the above-described operation (the operation of moving the lock member 7 from the unlocked position to the locked position). do it.

When the support member 71 includes a shallow groove 712 that can be engaged with the lock member 7 and a deep groove 714 that can be engaged with the lock member 7, the lock member 7 is selectively set to the locked position or the unlocked position. Positioned. For this reason, unintentionally moving the lock member 7 from the locked position to the unlocked position or moving from the unlocked position to the locked position is suppressed.

In the example shown in FIG. 7, the position of the shallow groove 712 is a position rotated 90 degrees around the rotation axis R1 with respect to the position of the deep groove 714. Therefore, when the first operating portion 74 (more specifically, the receiving portion 740) is rotated 90 degrees around the rotation axis R1, the lock member 7 is moved from the locked position to the unlocked position (or the unlocked position). To the lock position).

As shown in FIG. 7, the support member 71 may be provided with two shallow grooves 712 and two deep grooves 714. In the example illustrated in FIG. 7, the two shallow grooves 712 are arranged on a straight line. In other words, the two shallow grooves 712 are provided at positions facing each other with respect to the rotation axis R1. Two deep grooves 714 are also arranged in a straight line. For this reason, every time the first operation unit 74 is rotated 90 degrees around the rotation axis R1, the lock member 7 is alternately arranged at the lock position and the non-lock position.

In the example shown in FIG. 7, the lock member 7 is provided with two protrusions 7 c. The two protruding portions 7c are arranged in a straight line. Therefore, the two protrusions 7 c engage with the two shallow grooves 712 or the two deep grooves 714, so that the lock member 7 is stably supported by the support member 71.

(Third configuration example)
With reference to FIG. 5 and FIG. 6, an optional third configuration example that can be adopted in the embodiment will be described.

In the third configuration example, the wire cutting tool 1 includes a guard member 9 that covers the side surface of the lock member 7. In the example illustrated in FIG. 6, the guard member 9 covers the side surface of the shaft portion 7 b of the lock member 7. Further, the guard member 9 is movable between a third position (a position shown in FIG. 6) that covers the side surface of the lock member 7 and a fourth position that 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 71 b may be provided on the outer surface of the support member 71, and a female screw 9 b may be provided on the inner surface of the guard member 9. In this case, the guard member 9 can be moved between the third position and the fourth position by rotating the guard member 9 around a straight line parallel to the Y direction.

As shown in FIG. 6, the lock member 7 (more specifically, the shaft portion 7 b of the lock member) is protected by the guard member 9. For this reason, when another member collides with the wire cutting tool 1, the risk that the lock member 7 is damaged is small. For example, when another member collides with the wire cutting tool 1, 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 illustrated in FIG. 6, the stopper 92 (for example, the end surface of the guard member 9) is in contact with the lock member 7 or a part of the first operation portion 74. For this reason, the lock member 7 cannot move from the second position toward the first position (lock position).

When carrying out the insulating rod method, the guard member 9 is moved to the third position (position shown in FIG. 6). In this case, the lock member 7 is protected by the guard member 9. Further, when the guard member 9 includes the stopper 92, there is no risk that the lock member 7 moves from the second position to the first position during the implementation of the insulating rod method.

(Fourth configuration example)
With reference to FIG. 8 and FIG. 9, an optional fourth configuration example that can be adopted in the embodiment will be described. FIG. 8 is an enlarged view of a region indicated by an arrow C in FIG. FIG. 9 is an enlarged view of a region indicated by an arrow D in FIG.

4th structural example is related with an example of the connection part between the 1st electric wire gripper 2 and the bar member 5. FIG. In the fourth configuration example, the wire cutting tool 1 includes a pin member 40 disposed along the swing center 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 40 a is disposed so as to penetrate the through hole 28 provided in the first electric wire gripper 2 and the through hole 58 provided in the bar member 5. The first wire gripping tool 2 and the bar member 5 can swing relatively around the shaft portion 40a of the pin member 40. Alternatively, the pin member 40 may be fixed to any one of the first electric wire gripping tool 2 and the bar member 5.

In the example illustrated in FIG. 9, the first wire gripper 2 includes two plate portions (27 a and 27 b) at the connecting portion between the first wire gripper 2 and the rod member 5. The bar member 5 includes two plate portions (57a, 57b). Then, in a state where the two plate portions (27a, 27b) of the first electric wire gripping tool are sandwiched between the two plate portions (57a, 57b) of the bar member, the first electric wire gripping tool 2 and the bar member 5 are The pin members 40 are connected to each other.

In addition, in embodiment, the structure of the connection part between the 1st electric wire holding tool 2 and the bar member 5 is not limited to the example as described in FIG. 8 and FIG.

In the embodiment, any one of the first configuration example to the fourth configuration example described above may be adopted. Alternatively, in the embodiment, two configuration examples out of the first configuration example to the fourth configuration example described above may be combined and employed. 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, the second A configuration example and a fourth configuration example, or a third configuration example and a fourth configuration example may be employed. Alternatively, in the embodiment, three configuration examples out of the first configuration example to the fourth configuration example described above may be combined and employed. 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 adopted. Good. Further alternatively, in the embodiment, all of the first to fourth configuration examples described above may be employed.

(Configuration other than the connecting portion between the first wire gripper and the bar member)
With reference to FIG. 10 thru | or FIG. 12, an example of structures other than the connection part between the 1st electric wire holding tool 2 and the bar member 5 is demonstrated in detail. FIG. 10 is a schematic front view of the wire cutting tool 1 according to the embodiment. FIG. 11 is a schematic plan view of the wire cutting tool 1 according to the embodiment. 12 is a view taken along the line EE in FIG.

(First electric wire gripping tool 2)
The first wire gripping tool 2 includes a wire gripping portion 23, a parallel link mechanism G 1, and a gripping tool side connection portion G 2 that is a portion connected to the bar member 5.

The wire gripping portion 23 is a portion that grips the wire W. The electric 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 changes due to the action of the parallel link mechanism G1. Since 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. .

The parallel link mechanism G1 includes an upper grip piece 23a, a first swing member 24a, a second swing member 24b, and a lower support member 25. The upper grip piece 23a and the lower support member 25 are disposed to face each other, the first swing member 24a and the second swing member 24b are disposed to face each other, and the parallel link mechanism G1 is formed by these four members. Composed. The upper gripping piece 23a and the first swinging member 24a are connected to each other so as to be relatively rotatable on the first axis AX1, and the upper gripping piece 23a and the second swinging member 24b are relatively rotatable on the second axis AX2. It is connected to the. The lower support member 25 and the first swing member 24a are connected to each other so as to be relatively rotatable on the third axis AX3, and the lower support member 25 and the second swing member 24b are connected on the fourth axis AX4. , Are connected in a relatively rotatable manner.

The first swing member 24a includes a first extending portion 240a that extends toward the bar member 5 with respect to the first axis AX1. And in 5th axis | shaft AX5 arrange | positioned at the said 1st extension part 240a, the 1st rocking | swiveling member 24a is rotatably connected to the lower side holding piece 23b. The second swing member 24b includes a second extending portion 240b that extends toward the bar member 5 with respect to the second axis AX2. In the sixth axis AX6 disposed in the second extending portion 240b, the second swing member 24b is rotatably connected to the lower gripping piece 23b.

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

An example of a mechanism by which the first wire gripper 2 grips the wire W will be described. The electric wire W is disposed between the upper gripping piece 23a and the lower gripping piece 23b of the first electric wire gripping tool 2, and the electric wire W is interposed between the upper gripping piece 33a and the lower gripping piece 33b of the second electric wire gripping tool 3. Is placed. Subsequently, the extendable rod member 5 is contracted. When the telescopic 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 to the bar member 5 side, the fifth axis AX5 moves upward while rotating about the first axis AX1 by the parallel link mechanism G1, and the sixth axis AX6 is It moves upward while rotating about the second axis AX2. Thus, 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.

The first wire gripping tool 2 may include a gripping tool locking member 29. The gripper lock member 29 is a member for maintaining the state where 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 defines the distance between the two.

In the example shown in FIG. 10, the gripper lock member 29 is attached to the lower support member. The gripper lock member 29 includes an operation portion 29a (for example, an operation ring) and an advance / retreat rod that can approach and separate from the parallel link mechanism G1 (more specifically, the first swing member 24a). To do. Then, the advance / retreat rod comes into contact with the first swing member 24a by rotating the operation portion 29a (for example, an operation ring) using a remote operation tool. As a result, the movable range of the parallel link mechanism is limited. Thus, the distance between the upper gripping piece 23a and the lower gripping piece 23b cannot be increased beyond a predetermined distance.

When the electric wire W is disposed between the upper gripping piece 23a and the lower gripping piece 23b, the gripper lock member 29 is operated to grip the electric wire W by the upper gripping piece 23a and the lower gripping piece 23b. State is maintained. For this reason, the first wire gripping tool 2 is prevented from unintentionally falling off the wire W. The gripper lock member 29 can be suitably used when the wire cutting operation using the wire cutting tool 1 is temporarily interrupted.

(Second electric wire gripping tool 3)
The configuration of the second wire gripping tool 3 is the same as the configuration of the first wire gripping tool 2 except that the second wire gripping tool 3 cannot swing with respect to the bar member 5. Therefore, the description about the 2nd electric wire holding tool 3 is abbreviate | omitted.

(Bar member 5)
The bar 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 operating the relative movement of the inner member 52 with respect to the outer member 51. The second operation unit 53 is connected to the bar member 5 and is rotatable around a rotation axis R2 parallel to the Z direction. The 2nd operation part 53 is provided with the engaging part 530 with which the distal end of a remote control member engages.

An example of a mechanism for contracting the extendable rod member 5 using a remote operation member will be described. As an example, (A) the second operation portion 53 is provided with a first bevel gear that rotates around the rotation axis R2 together with the second operation portion, and (B) the first bevel gear and the load transmission are provided on the outer member 51. A second bevel gear that is operatively connected is disposed; (C) the second bevel gear rotates around the longitudinal axis L1 of the rod member 5 together with a screw rod having an outer screw disposed on the outer periphery; and (D) Assume that the inner member 52 is screwed to the screw rod. In this case, when the second operation unit 53 is rotated around the rotation axis R2 by the remote operation member, the first bevel gear rotates around the rotation axis R2, and the second bevel gear rotates around the longitudinal axis L1. When the second bevel gear rotates about the longitudinal axis L1, the screw rod rotates about the longitudinal axis L1. When the screw rod rotates around the longitudinal axis L 1, the inner member 52 that is screwed to the screw rod moves in a direction in which it is drawn into the outer member 51. Thus, the bar member 5 contracts.

In the embodiment, the mechanism for contracting the bar member is not limited to the above-described mechanism.

(Electric wire support 6)
The electric wire support 6 is a member that supports the electric wire W in the region between the first electric wire gripping tool 2 and the second electric wire gripping tool 3. In the example illustrated in FIG. 10, the wire cutting tool 1 includes a first wire support 6a and a second wire support 6b. The first electric wire support 6a is disposed between the first electric wire gripper 2 and the second operation part 53, and the second electric wire support 6b is provided with the second operation part 53, the second electric wire gripping tool 3, and the like. It is arranged between. Alternatively, the second electric wire support 6b may be disposed between the first electric wire support 6a and the second operation unit 53.

The first electric wire support 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 electric wire support 6a includes a receiving space SP for receiving the electric wires W. In the example shown in FIG. 12, the first electric wire support 6a includes a frame member 61a and an opening / closing member 62a that can open and close the opening of the frame member 61a. A receiving space SP is defined by the frame member 61a and the opening / closing member 62a.

Referring to FIG. 10, the second wire support 6b is attached to the bar member 5 (more specifically, the outer member 51). The second wire support 6b cannot rotate around the longitudinal axis L1 of the bar member 5. Alternatively, the second wire support 6b is attached to the rod member 5 so as to be rotatable around the longitudinal axis L1 of the rod member 5, and the first wire support 6a is attached to the longitudinal axis of the rod member 5. You may attach to the rod member 5 so that rotation around L1 is impossible. Further alternatively, both the first wire support 6a and the second wire support 6b may be attached to the bar member 5 so as to be rotatable about the longitudinal axis L1 of the bar member 5.

The structure of the second wire support 6b is the same as the structure of the first wire support 6a. Therefore, the description about the structure of the 2nd electric wire support 6b is abbreviate | omitted.

It is assumed that the first end of the cut electric wire and the second end of the cut electric wire are separated from each other by using the first electric wire support 6a and the second electric wire support 6b. In this case, first, the bar member 5 is moved in the Y direction so that the electric wire W passes through the receiving space SP of the first electric wire support 6a and the receiving space of the second electric wire support 6b. By the movement of the rod member 5, the electric wire W is received in the receiving space SP of the first electric wire support 6a through the opening of the frame member 61a of the first electric wire support 6a. Similarly, by the movement of the bar member 5, the electric wire W is received in the receiving space of the second electric wire support 6b through the opening of the frame member of the second electric wire support 6b. Then, the electric wire W is cut | disconnected in the area | region between the 1st electric wire support 6a and the 2nd electric wire support 6b. Subsequently, by rotating the first electric wire support 6a around the longitudinal axis L1 of the bar member 5 (for example, by rotating 180 degrees), the first end of the electric wire after cutting is a bar member. 5 move down. Thus, the first end portion of the cut electric wire and the second end portion of the cut electric wire are separated from each other.

10 and 12, the wire cutting tool 1 includes a third wire support 6c. The 3rd electric wire support 6c is arrange | positioned with respect to the rod member 5 on the opposite side of the 1st electric wire support 6a. In the example described in FIG. 12, the first electric wire support 6 a is disposed above the bar member 5, and the third electric wire support 6 c is disposed below the bar member 5.

In the example shown in FIG. 12, in the side view (that is, when the first wire support 6a and the third wire support 6c are viewed along the longitudinal axis L1 of the rod member 5), the first The center C1 of the third wire support 6a and the center C2 of the third wire support 6c are different in position in the Y direction (that is, the direction along the swing center axis S1). The center C1 of the first wire support 6a means the center of the receiving space SP defined by the frame member 61a and the opening / closing member 62a, and the center of the third wire support 6c means the frame member. It means the center of the receiving space SP2 defined by 61c and the opening / closing member 62c.

In the example shown in FIG. 12, the opening of the frame member 61a and the opening of the frame member 61c are arranged on the same side (on the right side of the bar member 5 in the example shown in FIG. 12) in a side view. ing.

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

In the example described in FIG. 12, the wire cutting tool 1 includes a first wire support 6 a and a third wire support disposed on the opposite side of the first wire support 6 a with respect to the rod member 5. 6c. For this reason, based on the thickness or arrangement | positioning etc. of the electric wire used as cutting object, the electric wire support tool used by an electric wire cutting operation can be selected from the 1st electric wire support tool 6a or the 3rd electric wire support tool 6c. .

Using the wire cutting tool of the present invention, the wire cutting work can be carried out by selecting an optimum method from the first method (insulating bar method) or the second method (batch method). Therefore, it is useful for the manufacturer of the wire cutting tool and the supplier who performs the wire cutting work.

DESCRIPTION OF SYMBOLS 1 ... Electric wire cutting tool, 2 ... 1st electric wire holding tool, 3 ... 2nd electric wire holding tool, 5 ... Bar member, 5a ... Stopper, 6 ... Electric wire support, 6a ... 1st electric wire support, 6b ... 1st 2 electric wire support, 6c ... 3rd electric wire support, 7 ... lock member, 7a ... receiving part, 7b ... shaft part, 7c ... projecting part, 8 ... pin, 9 ... guard member, 9b ... female screw, 23 ... Electric wire gripping portion, 23a ... upper gripping piece, 23b ... lower gripping piece, 24a ... first swing member, 24b ... second swing member, 25 ... lower support member, 28 ... through hole, 29 ... gripping tool 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 operation 58, through hole, 61a, 61c, frame member, 62a, 62c, opening / closing member, 64, base, 71, support 71a ... receiving part 71b ... male screw 72 ... washer 74 ... first operation part 76 ... biasing member 92 ... stopper 240a ... first extension part 240b ... second extension part 530 ... Engagement part, 712 ... shallow groove, 714 ... deep groove, 740 ... receiving part, G1 ... parallel link mechanism, G2 ... gripper side connection part, S1 ... swing central axis, W ... electric wire

Claims

A first wire gripper;
A second wire gripper;
A telescopic rod member disposed between the first electric wire gripping tool and the second electric wire gripping tool;
An electric wire support connected to the bar member and rotatable about a longitudinal axis of the bar member;
A locking member,
The first wire gripper is swingable about a swing center axis perpendicular to the longitudinal axis with respect to the rod member,
The lock member prohibits the first electric wire gripper from swinging with respect to the bar member in the locked state, and allows the first electric wire gripper to swing relative to the bar member in the unlocked state. tool.
The lock member moves between a first position where the first electric wire gripper is prevented from swinging with respect to the bar member and a second position where the first electric wire gripper is allowed to swing relative to the bar member. The wire cutting tool according to claim 1, which is possible.
The wire cutting tool according to claim 2, further comprising a biasing member that biases the lock member in a direction from the second position toward the first position.
The lock member is movable between the first position and the second position in a state where the first wire gripping tool, the bar member, and the second wire gripping tool are arranged in a straight line. The wire cutting tool according to claim 2.
The lock member is movable between the first position and the second position in a state where the first wire gripping tool, the bar member, and the second wire gripping tool are arranged in a straight line. The electric wire cutting tool according to claim 3.
The wire cutting tool according to claim 2, wherein the lock member is movable in a direction parallel to the swing center axis.
The wire cutting tool according to claim 3, wherein the lock member is movable in a direction parallel to the swing center axis.
The electric wire cutting tool according to claim 4, wherein the lock member is movable in a direction parallel to the swing center axis.
The electric wire cutting tool according to claim 5, wherein the lock member is movable in a direction parallel to the swing center axis.
A first operation unit for operating the lock member;
The wire cutting tool according to any one of claims 1 to 9, wherein the first operation portion includes a receiving portion capable of receiving an end portion of a remote control rod.
The electric wire cutting tool according to claim 10, wherein the first operation unit is rotatable around a rotation axis perpendicular to the oscillation center axis.
The area of the receiving portion in plan view changes as the first operating portion rotates around the rotation axis,
The wire cutting tool according to claim 11, wherein an area of the receiving portion in a plan view is maximized or minimized when the locking member is in a locked position.
A support member for supporting the lock member;
The lock member includes a protruding portion that protrudes in a radially outward direction of the lock member,
The support member is
A shallow groove engageable with the protrusion of the locking member;
The electric wire cutting tool according to claim 10, further comprising: a deep groove engageable with the protruding portion of the lock member.
A guard member that covers a side surface of the lock member;
The said guard member is movable between the 3rd position which covers the said side surface of the said locking member, and the 4th position which exposes the said side surface of the said locking member. Wire cutting tool.
The wire cutting tool according to claim 14, wherein the guard member includes a stopper that restricts movement of the lock member.