JP6915799B2 - Wire cutting tool - Google Patents

Description

The present invention relates to an electric 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 stretchable rod arranged between the first electric wire gripping tool and the second electric wire gripping tool. When cutting an electric wire using an electric wire cutting tool, first, the first part of the electric wire is gripped by the first electric wire gripper, and the second part of the electric wire is gripped by the second electric wire gripper. Second, the stretchable rod 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 electric wire located between the first electric wire gripping tool and the second electric wire gripping tool is loosened. Thirdly, the electric wire is cut at a position between the first electric wire gripping tool and the second electric wire gripping tool (the position where the electric wire is loose).

As a related technique, Patent Document 1 describes a live-line cutting tool. In the live-line cutting tool described in Patent Document 1, the first electric wire gripping tool is swingable with respect to a stretchable rod. When the live wire cutting tool described in Patent Document 1 is used to cut the electric wire, first, the first electric wire gripping tool is lifted by using an insulating rod, and the first electric wire gripping tool is used as the electric wire. Installing. Second, the stretchable rod is swung with respect to the first wire gripper. Third, the electric wire is supported by the electric wire support 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 wire is loosened by contracting the stretchable rod so that the first wire gripper approaches the second 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 (the position where the electric wire is loose). The construction method includes a step of swinging the stretchable rod relative to the first electric wire gripper. The construction method will be referred to as the "insulated rod method" or the "first construction method".

Further, Patent Document 2 describes an inter-column retaining tool for electric wire cutting work. In the tool described in Patent Document 2, the first electric wire gripping tool, the telescopic rod, and the second electric wire gripping tool are arranged in a straight line. In the tool described in Patent Document 2, the expandable rod cannot swing relative to the first electric wire gripping tool, and swings relative to the second electric wire gripping tool. I can't. When the electric wire cutting work is performed using the tool described in Patent Document 2, first, the entire electric wire cutting tool is lifted by using a yatco or the like, and the first electric wire gripping tool and the second electric wire gripping tool are used. In the area between and, the wire is supported by the wire support. Second, the first electric wire gripper is attached to the electric wire, and the second electric wire gripper is attached to the electric wire. Third, the wire is loosened by contracting the stretchable rod so that the first wire gripper approaches the second wire gripper. Fourth, the electric wire is cut at a position between the first electric wire gripping tool and the second electric wire gripping tool (the position where the electric wire is loose). The construction method does not include a step of swinging the stretchable rod relative to the first electric wire gripper. The construction method will be referred to as the "batch method" or the "second construction method".

Japanese Unexamined Patent Publication No. 2010-88256 Japanese Unexamined Patent Publication No. 2015-70651

By the way, in many cases, three electric wires are arranged horizontally in the high-voltage line to be cut, and a low-voltage line is already installed below the high-voltage line. For this reason, when attaching the wire cutting tool to the electric wire, the bucket of the aerial work platform is moved to a position close to directly below the high-voltage line, and one worker approaches the electric wire from the bucket of the aerial work platform. is doing. At that time, the operator lifts a long and heavy electric wire cutting tool to the position of the overhead electric wire with an insulating rod or a yatko to perform the work. When a worker reaches out from inside a narrow bucket and operates a wire cutting tool located overhead, he or she loses balance and drops the wire cutting tool to the ground, or loses his or her posture and gets injured. Careful work was always required to ensure that nothing happened.

In the insulation rod method, the operator holds the insulation rod by hand, lifts the first electric wire gripper (first camler) using the insulation rod, and attaches the first electric wire gripper (first camler) directly to the electric wire. There is. 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 slightly unreasonable posture and is located at the tip of the wire cutting tool. It is possible to securely attach the camler to the electric wire. However, in the first work process of the cutting work, the mounting position of the wire cutting tool is determined by grasping the electric wire with the first camler. For this reason, it has not been an easy task for the operator to accurately attach the first camler to the target position while losing his / her posture from a slightly distant position. Further, in the later work process, it is a laborious work for the worker to adjust the mounting position of the wire cutting tool by shifting it again from the inside of the bucket, and it cannot be said that the work is efficient.

On the other hand, in the batch method, the operator lifts the wire cutting tool by hand while maintaining the balance while holding the wire cutting tool with the wire cutting tool, and attaches the wire cutting tool to the wire. In this method, the wire cutting tool is temporarily attached to the position where the operator can easily attach the wire, depending on the positional relationship between the bucket and the electric wire to be cut. Then, after the electric wire cutting tool is temporarily attached, the electric wire cutting tool can be horizontally moved on the electric wire to the electric wire cutting portion. In particular, when cutting three high-voltage lines at the same time, it is necessary to shift the cutting points between adjacent wires, so that it is effective to be able to move the wire cutting tool horizontally. However, the operator needs to lift the wire cutting tool overhead with the syncopation in the first work process. For this reason, when the bucket and the electric wire to be cut off are separated from each other, the burden on the worker's body is heavy. In addition, when the electric wire is inclined and overhead, after attaching the electric wire cutting tool to the electric wire in the first work process, the electric wire cutting tool slides down along the inclined direction of the electric wire due to gravity. , It was necessary to temporarily fix the wire cutting tool after temporary installation. Temporarily fixing the wire cutting tool after temporary attachment is not an efficient operation.

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

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

The present invention relates to an electric wire cutting tool shown below.

(1) The first electric wire gripper and
2nd wire gripper and
A stretchable rod member arranged between the first electric wire gripping tool and the second electric wire gripping tool, and
An electric wire support that is connected to the rod member and can rotate around the longitudinal axis of the rod member.
Equipped with a lock member
The first electric wire gripping tool can swing around the swing center axis perpendicular to the longitudinal axis with respect to the rod member.
The lock member prohibits the first wire gripper from swinging with respect to the rod member in the locked state, and allows the first wire gripper to swing with respect to the rod member in the unlocked state. tool.
(2) The lock member has a first position for prohibiting the swing of the first electric wire gripping tool with respect to the rod member and a second position for allowing the first electric wire gripping tool to swing with respect to the rod member. The wire cutting tool according to (1) above, which can be moved between.
(3) The electric wire cutting tool according to (2) above, further comprising an urging member that urges the lock member in a direction from the second position toward the first position.
(4) The lock member is located 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 electric wire cutting tool according to (2) or (3) above, which can be moved by.
(5) The electric wire cutting tool according to any one of (2) to (4) above, wherein the lock member can move in a direction parallel to the swing center axis.
(6) Further includes a first operation unit for operating the lock member.
The electric wire cutting tool according to any one of (1) to (5) above, wherein the first operating unit includes a receiving unit that can accept the end of the remote control rod.
(7) The electric wire cutting tool according to (6) above, wherein the first operation unit is rotatable around a rotation axis perpendicular to the swing center axis.
(8) The area of the receiving portion in a plan view changes as the first operating portion rotates around the rotation axis.
The electric wire cutting tool according to (7) above, wherein the area of the receiving portion in a plan view is the maximum or the minimum when the locking member is in the locked position.
(9) Further provided with a support member for supporting the lock member,
The lock member includes a protrusion that protrudes in the outward direction of the lock member.
The support member
A shallow groove that can engage with the protrusion of the lock member,
The electric wire cutting tool according to any one of (6) to (8) above, which includes a deep groove that can be engaged with the protruding portion of the lock member.
(10) Further including a guard member covering the side surface of the lock member,
The guard member is any one of (1) to (9) above, which 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. Wire cutting tool described in.
(11) The electric wire cutting tool according to (10) above, wherein the guard member includes a stopper that restricts the movement of the lock member.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide an electric wire cutting tool that can be executed by appropriately selecting an insulating rod method (first method) and a batch method (second method) according to the situation around the electric wire to be cut. As a result, the burden on the operator can be reduced, and the wire cutting work can be performed safely and efficiently.

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

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

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

(Embodiment)
The electric wire cutting tool 1 according to the embodiment will be described with reference to FIGS. 1 to 4. 1 and 2 are schematic front views of the wire cutting tool 1 according to the embodiment. Note that FIG. 1 shows a state in which the first electric wire gripping tool 2 cannot swing with respect to the rod member 5, and FIG. 2 shows a state in which the first electric wire gripping tool 2 can swing with respect to the rod member 5. Shown. FIG. 3 is a schematic plan view of the electric wire cutting tool 1 according to the embodiment. FIG. 4 is a schematic front view showing an example of the lock mechanism.

The electric wire cutting tool 1 is a tool used for cutting an electric wire and performing a work of separating one end of the cut electric wire from the other end. Since the electric wire cutting tool itself is not provided with a cutting blade for cutting the electric wire, the electric wire cutting tool 1 may be called an electric wire cutting auxiliary tool. The wire cutting tool itself may be provided with a cutting blade for cutting the wire.

With reference to FIG. 1, the electric wire cutting tool 1 is arranged between the first electric wire gripping tool 2, the second electric wire gripping tool 3, the first electric wire gripping tool 2, and the second electric wire gripping tool 3. It includes a stretchable rod member 5, an electric wire support 6 connected to the rod member 5, and a lock member 7.

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. be.

The telescopic 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 described in FIG. 1, one end of the rod member 5 is connected to the first electric wire gripping tool 2 so as to be swingable with respect to the first electric wire gripping tool 2. That is, the rod member 5 can swing around the swing center axis S1 with respect to the first electric wire gripper 2. Further, in the example shown in FIG. 1, the other end of the rod member 5 is connected to the second electric wire gripper 3. The connection between the rod member 5 and the second electric wire gripper 3 is preferably a non-swingable connection.

In the example described in FIG. 1, the rod member 5 includes an outer member 51 (for example, a first elongated member having a tubular shape) and an inner member 52 (for example, a second elongated member having a tubular shape or a column shape). And. A part of the inner member 52 is inserted inside the outer member 51. The distance between the first electric wire gripping tool 2 and the second electric wire gripping tool 3 by moving the inner member 52 relative to the outer member 51 in the direction along the longitudinal axis L1 of the rod member 5. Changes.

The electric wire support 6 is a member that supports the electric wire W in the region between the first electric wire grip 2 and the second electric wire grip 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 circumference of the electric wire W. In the example described in FIG. 1, the portion of the electric wire W located between the first portion P1 and the second portion P2 passes through the receiving space SP of the electric wire support 6. As a result, the position of the wire W is defined by the wire support 6. The receiving space SP will be described later.

In the example described in FIG. 1, the number of electric wire supports 6 is three (first electric wire support 6a, second electric wire support 6b, third electric wire support 6c). Alternatively, the number of 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 rod member 5. In the example described in FIG. 1, the first electric wire support 6a is rotatable around the longitudinal axis L1. The first electric wire support 6a supports one end of the electric wire W after cutting the electric wire W (note that "supporting the end" means "defining the position of the end". Included). When the first electric wire support 6a is rotated around the longitudinal axis L1, the position of one end of the electric wire W changes. For example, it is assumed that the electric wire W is cut at the position indicated by the 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 the position above the rod member 5 to the 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 lock member 7 will be described. In the example described in FIG. 1, the first electric wire gripping tool 2 can swing around the swing center axis S1 perpendicular to the longitudinal axis L1 of the bar member with respect to the bar member 5. When the lock member 7 is in the locked state, the relative swing (swing around the swing center axis S1) between the first electric wire gripper 2 and the rod member 5 is prohibited, and the lock member 7 is unlocked. When in the state, relative swing (swing around the swing center axis S1) between the first electric wire gripper 2 and the rod member 5 is allowed.

Any mechanism can be adopted as the lock mechanism that prohibits the lock member 7 from swinging relative to the first electric wire gripping tool 2 and the rod member 5. For example, by inserting a lock member (for example, a lock pin) into the hole provided in the first electric wire gripper 2 and the hole provided in the rod member 5, the above-mentioned relative swing is prohibited. May be good. At least one of the hole provided in the first electric wire gripping tool 2 and the hole provided in the rod member 5 may be replaced with a recess. Alternatively, as shown in FIG. 4, the locking mechanism may be a locking mechanism that utilizes the engagement and disengagement of the hook member, which is the locking member 7, and the pin 8. In the example shown in FIG. 4, the hook member is rotatably provided on the first electric wire gripper 2, and the pin 8 is provided on the rod member 5. Alternatively, the hook member may be rotatably provided on the rod member 5 and the pin 8 may be provided on the first wire gripper 2.

It is assumed that the wire cutting tool 1 is used when the lock member 7 is in the unlocked state. In this case, relative swing between the first electric wire gripper 2 and the rod member 5 is allowed. Therefore, it is possible to carry out a construction method including a step of swinging the rod member 5 relative to the first electric wire gripping tool 2 when performing the wire cutting work (insulated rod method or first construction method). ..

In the insulated rod method, for example, the following seven steps are executed. In the first step, the first electric wire gripping tool 2 is lifted by 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 arranged on the electric wire). In the second step, the stretchable rod member 5 swings with respect to the first electric 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 (note that, in the present specification, "supporting the electric wire". Includes "defining the position of wires"). 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 arranged on the electric wire). In the fifth step, the stretchable rod member 5 is contracted so that the first electric wire gripping tool 2 approaches the second electric wire gripping tool 3. By executing 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 (the position where the electric wire is loose). In the seventh step, the electric wire support 6 is rotated around the rod member 5. By executing the seventh step, the position of one end of the cut wire is separated from the position of the other end of the cut 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, the relative swing between the first electric wire gripper 2 and the rod member 5 is prohibited. For this reason, it is possible to carry out a construction method in which the rod member 5 is fixed to the first electric wire gripping tool 2 so as not to swing when performing the wire cutting work (collective 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 by using a yatco or the like, and the wire W is supported by the wire support 6 in the region between the first wire grip 2 and the second wire grip 3. .. In the second step, the first electric wire gripping tool 2 is attached to the electric wire W (in other words, arranged 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). do). In the third step, the stretchable rod member 5 is contracted so that the first electric wire gripping tool 2 approaches the second electric 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 (the position where the electric wire is loose). In the fifth step, the electric wire support 6 is rotated around the rod member 5. By performing in the fifth step, the position of one end of the cut wire is separated from the position of the other end of the cut wire.

The wire cutting tool in the embodiment includes a lock member. Therefore, it is possible to selectively execute the insulating rod method and the batch method by using the electric wire cutting tool in the embodiment. Therefore, it is not necessary to execute the batch method under the condition that the insulating rod method is suitable, and it is not necessary to execute the insulating rod method under the situation that the batch method is suitable. Further, it is not necessary to prepare both an electric wire cutting tool suitable for the insulating rod method and an electric wire cutting tool suitable for the batch method.

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

(First configuration example)
An optional additional first configuration example that can be adopted in the embodiment will be described with reference to FIGS. 5 and 6. FIG. 5 is a cross-sectional view taken along the line AA of FIG. FIG. 6 is a cross-sectional view taken along the line BB of FIG. Note that 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 described in FIG. 5, the lock member 7 is in the first position for prohibiting the swing of the first electric wire gripper 2 with respect to the rod member 5. On the other hand, in the example shown in FIG. 6, the lock member 7 is in the second position that allows the first electric wire gripper 2 to swing with respect to the rod member 5. Then, the lock member 7 can move 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 of the lock member 7 in the Y direction (that is, a position in the direction along the longitudinal direction of the lock member 7).

In the example shown in FIGS. 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 electric wire gripper 2 and the rod member 5. Of the cross-sectional shapes of the pin members (cross-sectional shapes perpendicular to the swing center axis S1), the cross-sectional shapes of the portions inserted into the holes (50a, 50b) are preferably circular. However, the cross-sectional shape of the pin member may be a shape 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 hole (50a, 50b) and is in contact with the lower surface (20a, 20b) of the first electric wire gripper 2. .. As a result, the first electric wire gripping tool 2 cannot swing downward with respect to the rod member 5. In addition, in the example described in FIG. 1, since the end portion of the first electric wire gripper 2 is in contact with the stopper 5a provided on the rod member 5, the first electric wire gripper 2 is attached to the rod member 5. On the other hand, it cannot swing upward. In this way, the swinging of the first electric wire gripping tool 2 with respect to the rod member 5 is prohibited.

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

In the examples shown in FIGS. 5 and 6, the first electric wire gripper 2 is arranged inside the rod member 5. Alternatively, the rod member 5 may be arranged inside the first electric wire gripper 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. Then, in the locked state, the lock member 7 may be inserted into the hole of the first electric wire gripper 2 and may come into contact with the upper surface of the rod member 5.

In the examples shown in FIGS. 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 another shape. In the examples shown in FIGS. 5 and 6, the support member 71 is fixed to the rod member 5. Alternatively, when the first electric wire gripper 2 is arranged outside the rod member 5, the support member 71 may be fixed to the first electric wire gripper 2. 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.

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

In the first configuration example, even if the electric wire cutting tool 1 has an urging member 76 (for example, a spring such as a coil spring) that urges the lock member 7 in the direction from the second position to the first position. good. In the examples shown in FIGS. 5 and 6, the urging member 76 is arranged inside the support member 71. The urging member 76 may be arranged between the receiving portion 71a of the supporting member 71 and the receiving portion 7a of the lock member 7 (see FIG. 6).

When the wire cutting tool 1 includes an urging member 76 that urges the lock member 7 in the direction from the second position to 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. Therefore, 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 urging member 76. Therefore, the lock by the lock member 7 is not unintentionally released. For example, it is assumed that the lock member 7 unintentionally releases the lock when the electric wire cutting tool is transported. In this case, the first electric wire gripping tool 2 may swing with respect to the rod member 5, and the first electric wire gripping tool 2 may collide with the rod 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 unintentionally released. Therefore, when the electric wire cutting tool is transported, the first electric wire gripping tool 2 swings with respect to the rod member 5, so that the first electric wire gripping tool 2 collides with the rod member 5 or other tools. 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 rod member 5, and the second electric wire gripping tool 3 are arranged in a straight line (that is, the state shown in FIG. 1). , It is preferable to be movable between the first position and the second position.

The state in which the first electric wire gripping tool 2, the rod member 5, and the second electric wire gripping tool 3 are arranged in a straight line is a state in which the batch method can be executed. When executing the batch method, it may be difficult to continue the batch method. For example, after executing the above-mentioned first step (the step of supporting the electric wire W by the electric wire support 6) in the batch method and attaching the first electric wire gripper 2 to the electric wire, the second electric wire gripper 3 is attached to the electric wire. It may happen that the work of attaching to the cable 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 wire gripper 2 and the rod member 5. That is, even when the batch method is being executed, that is, even when the wire cutting tool is separated from the hand and supported by an overhead electric wire (in the air), the batch method can be interrupted and switched to the insulated rod method. .. As a result, the work of attaching the second electric wire gripping tool 3 to the electric 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 electric wire gripping tool 2, the rod member 5, and the second electric wire gripping tool 3 are arranged in a straight line. If possible, it is possible to interrupt the execution of the batch method and switch to the insulated rod method during the execution of the batch method.

Further, in the first configuration example, the lock member 7 is in the first position in the state "only" in which the first electric wire gripping tool 2, the rod member 5, and the second electric wire gripping tool 3 are arranged in a straight line. It may be movable to and from the second position. In this case, the relative shaking of the first electric wire gripping tool 2 and the rod member 5 in a state where the first electric wire gripping tool 2, the rod member 5, and the second electric wire gripping tool 3 are not arranged in a straight line. Movement is not prohibited. Therefore, there is no risk that the wire cutting tool 1 is used in an erroneous state. For example, the state shown in FIG. 6 is a state in which the first electric wire gripping tool 2, the rod 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 advancing / retreating path of the lock member 7. Therefore, 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 rod member 5, and the second electric wire gripping tool 3 are arranged in a straight line. In the state shown in FIG. 5, a member that hinders the movement of the lock member 7 is not arranged in the advancing / retreating path of the lock member 7. Therefore, 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 rod member 5 is provided with a hole capable of receiving the lock member 7, the first electric wire gripping tool 2, the rod member 5, and the second electric wire gripping tool are provided. Only in the state where 3 and 3 are arranged in a straight line, the hole of the first electric wire gripping tool 2 and the hole of the rod member 5 may be aligned with each other. In this case, in a state where the first electric wire gripping tool 2, the rod 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 and the hole of the rod member 5 Are inconsistent. Therefore, the lock member 7 cannot move between the first position and the second position.

In the first configuration example, it is preferable that the lock member 7 can move in a direction parallel to the swing center axis S1. A tensile tension mainly acts on the rod member 5 of the wire cutting tool 1. When the lock member 7 can move in the direction perpendicular to the tensile tension, that is, in the direction parallel to the swing center axis S1, the lock member 7 can be moved even under the condition that the tensile tension is acting. It is easy to move between the first position and the second position.

(Second configuration example)
An optional additional second configuration example that can be adopted in the embodiment will be described with reference to FIGS. 5 to 7. FIG. 7 is a schematic perspective view schematically showing the periphery of the lock member 7. In FIG. 7, the description of the 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. The first operating unit 74 includes a receiving unit 740 that can accept the end of the remote control 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 shown in FIG. 5, the first operation unit 74 and the lock member 7 are separate bodies, but the first operation unit 74 and the lock member 7 may be one member integrally molded. Further, in the example shown 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 capable of receiving 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 having a hole inside), a hook shape, or the like.

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

In the second configuration example, the first operating unit 74 (more specifically, the receiving unit 740) may be rotatable around a rotation axis R1 parallel to the swing center axis S1. Then, when the first operation unit 74 is rotated around the rotation axis R1 (for example, rotated by 90 degrees), the lock member 7 may be configured to move from the locked position to the unlocked position. In the second configuration example, each of the locked position and the unlocked position means at least the rotational position of the lock member 7 around the rotation axis R1.

It is assumed that the electric wire cutting tool 1 is supported by an overhead electric 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 linear 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 receiving portion 740 has a substantially ring shape when viewed from the bottom. Therefore, the operator can easily grasp whether the lock member 7 of the wire cutting tool 1 supported by the overhead power line is in the locked position or the unlocked position.

Further, a specific description will be given. A plane parallel to the X direction and parallel to the Y direction is defined as a projection plane. Further, it is assumed that the receiving portion 740 is projected onto the projection plane by parallel rays parallel to the Z direction. When the first operation unit 74 (reception unit 740) is rotated around the rotation axis R1, the area (projected area) projected on the projection surface of the reception unit 740 changes.

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

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

In the second configuration example, as in 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 lock member 7 (more specifically, the shaft portion 7b of the lock member) is provided with a protruding portion 7c that protrudes in the out-of-diameter direction of the lock member. When the protruding portion 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 rod member 5 can swing with respect to the first electric wire gripping tool 2. On the other hand, when the protruding portion 7c of the lock member 7 engages with 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 gripping tool 2.

In order to move the lock member 7 from the unlocked position to the locked position, the first operation unit 74 is moved in the Y direction against the urging force of the urging member 76, and the first operation unit 74 is moved. , Rotate 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 moves to the lock position (that is, the first position) by the urging force of 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 procedure of the above 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 engage with the lock member 7 and a deep groove 714 that can engage with the lock member 7, the lock member 7 selectively switches to a locked position or a non-locked position. Positioned. Therefore, it is suppressed that the lock member 7 unintentionally moves from the locked position to the unlocked position or from the non-locked position to the locked position.

Further, in the example shown in FIG. 7, the position of the shallow groove 712 is a position rotated by 90 degrees around the rotation axis R1 with respect to the position of the deep groove 714. Therefore, when the first operating unit 74 (more specifically, the receiving unit 740) is rotated 90 degrees around the rotation axis R1, the lock member 7 moves from the locked position to the unlocked position (or the unlocked position). Will move from 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 shown in FIG. 7, the two shallow grooves 712 are arranged in 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. The two deep grooves 714 are also arranged in a straight line. Therefore, 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 locked position and the unlocked position.

Further, in the example shown in FIG. 7, the lock member 7 is provided with two projecting portions 7c. The two protrusions 7c are arranged in a straight line. Therefore, 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.

(Third configuration example)
An optional additional third configuration example that can be adopted in the embodiment will be described with reference to FIGS. 5 and 6.

In the third configuration example, the electric wire cutting tool 1 includes a guard member 9 that covers 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. Further, the guard member 9 can be moved between a third position (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 can move in the Y direction and in the direction opposite to the Y direction.

A male screw 71b may be provided on the outer surface of the support member 71, and a female screw 9b 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 7b of the lock member) is protected by the guard member 9. Therefore, when another member collides with the wire cutting tool 1, the risk of damage to the lock member 7 is small. For example, when another member collides with the electric wire cutting tool 1, the risk of the shaft portion 7b of the lock member 7 breaking 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 shown 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. Therefore, the lock member 7 cannot move from the second position to the first position (lock position).

When the insulating rod method is implemented, the guard member 9 is moved to the third position (the 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)
An optional additional fourth configuration example that can be adopted in the embodiment will be described with reference to FIGS. 8 and 9. FIG. 8 is an enlarged view of the region indicated by the arrow C in FIG. FIG. 9 is an enlarged view of the region indicated by the arrow D in FIG.

The fourth configuration example relates to an example of a connecting portion between the first electric wire gripping tool 2 and the rod member 5. In the fourth configuration example, the wire cutting tool 1 includes a pin member 40 arranged 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 40a is arranged so as to penetrate the through hole 28 provided in the first electric wire gripper 2 and the through hole 58 provided in the rod member 5. Then, the first electric wire gripping tool 2 and the rod member 5 can relatively swing around the shaft portion 40a of the pin member 40. Alternatively, the pin member 40 may be fixed to either one of the first electric wire gripper 2 and the rod member 5.

In the example described in FIG. 9, in the connecting portion between the first electric wire gripping tool 2 and the rod member 5, the first electric wire gripping tool 2 includes two plate portions (27a, 27b). Further, the rod member 5 includes two plate portions (57a, 57b). Then, in a state where the two plate portions (27a, 27b) of the first electric wire gripper are sandwiched between the two plate portions (57a, 57b) of the rod member, the first electric wire gripper 2 and the rod member 5 are held together. , Are connected via a pin member 40.

In the embodiment, the configuration of the connecting portion between the first electric wire gripping tool 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-mentioned first configuration example to fourth configuration example may be adopted. Alternatively, in the embodiment, two configuration examples of the above-mentioned first configuration example to the fourth configuration example may be adopted 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, the second Configuration examples and fourth configuration examples, or third and fourth configuration examples may be adopted. Alternatively, in the embodiment, three configuration examples of the above-mentioned first configuration example to the fourth configuration example may be adopted in combination. In other words, even if 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 is adopted in the embodiment. good. Further, in the embodiment, all of the above-mentioned first to fourth configuration examples may be adopted.

(Structure other than the connection between the first electric wire gripper and the rod member)
An example of a configuration other than the connection portion between the first electric wire gripping tool 2 and the rod member 5 will be described in more detail with reference to FIGS. 10 to 12. FIG. 10 is a schematic front view of the electric wire cutting tool 1 according to the embodiment. FIG. 11 is a schematic plan view of the electric wire cutting tool 1 according to the embodiment. FIG. 12 is a view taken along the line EE in FIG.

(1st electric wire gripper 2)
The first electric wire gripping tool 2 includes an electric wire gripping portion 23, a parallel link mechanism G1, and a gripping tool side connecting portion G2 which is a portion connected to the rod member 5.

The electric wire gripping portion 23 is a portion that grips the electric wire W. The electric wire grip portion 23 includes an upper grip piece 23a and a lower grip 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. By reducing the distance between the lower surface of the upper grip piece 23a and the upper surface of the lower grip piece 23b, the electric wire W is gripped between the lower surface of the upper grip piece 23a and the upper surface of the lower grip piece 23b. ..

The parallel link mechanism G1 includes an upper gripping 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 arranged to face each other, the first swing member 24a and the second swing member 24b are arranged to face each other, and the parallel link mechanism G1 is formed by these four members. It is 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 connected to each other so as to be relatively rotatable on the second axis AX2. It is connected to the. Further, 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 to each other on the fourth axis AX4. , Relatively rotatable.

The first swing member 24a includes a first extending portion 240a that extends toward the rod member 5 side with respect to the first shaft AX1. Then, in the fifth axis AX5 arranged in the first extension portion 240a, the first swing member 24a is rotatably connected to the lower gripping piece 23b. Further, the second swing member 24b includes a second extending portion 240b that extends toward the rod member 5 side with respect to the second shaft AX2. In the sixth axis AX6 arranged in the second extending portion 240b, the second swinging member 24b is rotatably connected to the lower gripping piece 23b.

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

An example of the mechanism by which the first electric wire gripping tool 2 grips the electric wire W will be described. The electric wire W is arranged 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 placed between the upper gripping piece 33a and the lower gripping piece 33b of the second electric wire gripping tool 3. Is placed. Subsequently, the stretchable rod member 5 is contracted. When the stretchable rod member 5 is contracted, the lower support member 25 is pulled toward the rod member 5. When the lower support member 25 is pulled toward the rod member 5, the parallel link mechanism G1 causes the fifth axis AX5 to move upward while rotating around the first axis AX1, and the sixth axis AX6 moves upward. It 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.

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

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 unit 29a (for example, an operation ring) and an advancing / retreating rod capable of being closely separated from the parallel link mechanism G1 (more specifically, the first swing member 24a). do. Then, by rotating the operation unit 29a (for example, the operation ring) using a remote control tool, the advancing / retreating rod comes into contact with the first swing 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 increased beyond a predetermined distance.

By operating the gripper lock member 29 with the electric wire W arranged between the upper gripping piece 23a and the lower gripping piece 23b, the upper gripping piece 23a and the lower gripping piece 23b grip the electric wire W. The state is maintained. Therefore, it is prevented that the first electric wire gripping tool 2 unintentionally falls off from the electric wire W. The gripper lock member 29 can be suitably used when the electric wire cutting work using the electric wire cutting tool 1 is temporarily interrupted.

(2nd electric wire gripper 3)
The configuration of the second electric wire gripping tool 3 is the same as that of the first electric wire gripping tool 2 except that the second electric wire gripping tool 3 cannot swing with respect to the rod member 5. Therefore, the description of the second electric wire gripping tool 3 will be 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 unit 53 is a portion 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 rod member 5 and can rotate around the rotation axis R2 parallel to the Z direction. The second operating portion 53 includes an engaging portion 530 to which the distal end of the remote operating member engages.

An example of a mechanism for contracting the stretchable rod member 5 by using the 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 rotation shaft R2 together with the second operation unit, and (B) the outer member 51 is provided with the first bevel gear and load transmission. A second bevel gear that is possibly connected is arranged, and (C) the second bevel gear rotates around the longitudinal axis L1 of the rod member 5 together with a screw rod having an external screw arranged on the outer circumference, and (D) It is assumed that the inner member 52 is screwed into the screw rod. In this case, when the second operation unit 53 is rotated around the rotation shaft R2 by the remote operation member, the first bevel gear rotates around the rotation shaft R2 and the second bevel gear rotates around the longitudinal axis L1. When the second bevel gear rotates around the longitudinal axis L1, the screw rod rotates around the longitudinal axis L1. When the screw rod rotates around the longitudinal axis L1, the inner member 52 screwed into the screw rod moves in the direction of being pulled into the outer member 51. In this way, the rod member 5 contracts.

In the embodiment, the mechanism for contracting the rod member is not limited to the above-mentioned 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 grip 2 and the second electric wire grip 3. In the example described 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 arranged between the first electric wire gripper 2 and the second operation unit 53, and the second electric wire support 6b is the second operation unit 53 and the second electric wire gripper 3. It is placed between. Alternatively, the second wire support 6b may be arranged between the first wire support 6a and the second operating 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 that receives the electric wire W. In the example described in FIG. 12, the first electric wire support 6a includes a frame member 61a and an opening / closing member 62a that can open / close the opening of the frame member 61a. The receiving space SP is defined by the frame member 61a and the opening / closing member 62a.

With reference to FIG. 10, the second wire support 6b is attached to the rod member 5 (more specifically, the outer member 51). The second electric wire support 6b cannot rotate around the longitudinal axis L1 of the rod 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 5 of the rod member 5. It may be attached to the rod member 5 so that it cannot rotate around L1. Further, as an alternative, both the first electric wire support 6a and the second electric wire support 6b may be attached to the rod member 5 so as to be rotatable around the longitudinal axis L1 of the rod member 5.

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

It is assumed that the first wire support 6a and the second wire support 6b are used to separate the first end of the cut wire from the second end of the cut wire. In this case, first, the rod 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. Due to the movement of the rod member 5, the electric wire W is received by 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, due to the movement of the rod 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. After that, the electric wire W is cut in the region between the first electric wire support 6a and the second electric wire support 6b. Subsequently, by rotating the first electric wire support 6a around the longitudinal axis L1 of the rod member 5 (for example, by rotating it 180 degrees), the first end portion of the electric wire after cutting is a rod member. Move below 5. In this way, the first end of the cut electric wire and the second end of the cut electric wire are separated from each other.

In the examples shown in FIGS. 10 and 12, the wire cutting tool 1 includes a third wire support 6c. The third electric wire support 6c is arranged on the opposite side of the first electric wire support 6a with respect to the rod member 5. In the example described in FIG. 12, the first electric wire support 6a is arranged above the rod member 5, and the third electric wire support 6c is arranged below the rod member 5.

In the example described in FIG. 12, in a 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 electric wire support 6a and the center C2 of the third electric 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 electric 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 electric wire support 6c is the frame member. It means the center of the receiving space SP2 defined by 61c and the opening / closing member 62c.

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

Further, in the example shown in FIG. 12, the first electric wire support 6a and the third electric wire support 6c are connected to a common base 64, and the base 64 is connected to the rod member 5 in the longitudinal direction. It is attached to the rod member 5 so that it can rotate around the shaft L1.

In the example described in FIG. 12, the wire cutting tool 1 is a first wire support 6a and a third wire support arranged on the opposite side of the first wire support 6a with respect to the rod member 5. It is equipped with 6c. Therefore, the wire support used in the wire cutting work can be selected from the first wire support 6a or the third wire support 6c based on the thickness or arrangement of the wires to be cut. ..

By using the electric wire cutting tool of the present invention, the electric wire cutting work can be carried out by selecting the most suitable method from the first method (insulated rod method) or the second method (collective method). Therefore, it is useful for manufacturers of electric wire cutting tools and those who carry out electric wire cutting work.

1 ... Electric wire cutting tool, 2 ... 1st electric wire gripper, 3 ... 2nd electric wire gripper, 5 ... Rod member, 5a ... Stopper, 6 ... Electric wire support, 6a ... 1st electric wire support, 6b ... No. 2 electric wire support, 6c ... 3rd electric wire support, 7 ... lock member, 7a ... receiving part, 7b ... shaft part, 7c ... protruding part, 8 ... pin, 9 ... guard member, 9b ... female screw, 23 ... Wire grip portion, 23a ... upper grip piece, 23b ... lower grip piece, 24a ... first swing member, 24b ... second swing member, 25 ... lower support member, 28 ... through hole, 29 ... grip tool lock Member, 29a ... Operation unit, 33a ... Upper grip piece, 33b ... Lower grip piece, 40 ... Pin member, 40a ... Shaft, 40b ... Head, 51 ... Outer member, 52 ... Inner member, 53 ... Second operation Part, 58 ... Through hole, 61a, 61c ... Frame member, 62a, 62c ... Opening and closing member, 64 ... Base, 71 ... Support member, 71a ... Receiving part, 71b ... Male screw, 72 ... Washer, 74 ... First operation part, 76 ... urging 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 ... Grip side connection, S1 ... Swing center axis, W ... Electric wire

Claims (11)

1st wire gripper and
2nd wire gripper and
A stretchable rod member arranged between the first electric wire gripping tool and the second electric wire gripping tool, and
An electric wire support that is connected to the rod member and can rotate around the longitudinal axis of the rod member.
Equipped with a lock member
The first electric wire gripping tool can swing around the swing center axis perpendicular to the longitudinal axis with respect to the rod member.
The lock member prohibits the first electric wire gripping tool from swinging with respect to the rod member in the locked state, and allows the first electric wire gripping tool to swing with respect to the rod member in the unlocked state .
The other end of the rod member is an electric wire cutting tool that is non-oscillatingly connected to the second electric wire gripper. The lock member moves between a first position that prohibits the first electric wire gripper from swinging with respect to the rod member and a second position that allows the first electric wire gripper to swing with respect to the rod member. The electric wire cutting tool according to claim 1, which is possible. The electric wire cutting tool according to claim 2, further comprising an urging member that urges the lock member in a direction from the second position toward the first position. The lock member can move 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 electric wire cutting tool according to claim 2 or 3. The electric wire cutting tool according to any one of claims 2 to 4, wherein the lock member can move in a direction parallel to the swing center axis. Further including a first operation unit for operating the lock member,
The electric wire cutting tool according to any one of claims 1 to 5, wherein the first operating portion includes a receiving portion capable of accepting an end portion of a remote control rod. The electric wire cutting tool according to claim 6, wherein the first operation unit can rotate around a rotation axis parallel to the swing center axis. The area of the receiving portion in a plan view changes as the first operating portion rotates around the rotation axis.
The electric wire cutting tool according to claim 7, wherein the area of the receiving portion in a plan view is the maximum or the minimum when the locking member is in the locked position. Further provided with a support member for supporting the lock member,
The lock member includes a protrusion that protrudes in the outward direction of the lock member.
The support member
A shallow groove that can engage with the protrusion of the lock member,
The electric wire cutting tool according to any one of claims 6 to 8, further comprising a deep groove that can engage with the protruding portion of the lock member. Further including a guard member covering the side surface of the lock member,
The method according to any one of claims 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. Wire cutting tool. The electric wire cutting tool according to claim 10, wherein the guard member includes a stopper that restricts the movement of the lock member.

Images