TWI766996B - wire cutting tool - Google Patents

Abstract

An object of the present invention is to provide a wire cutting tool which can reduce the burden on the operator, perform wire cutting work safely and efficiently, and can appropriately select an insulating rod method according to the surrounding conditions of the wire to be cut. (1st construction method) and one-shot method (2nd construction method). The wire cutting tool includes a first wire gripper, a second wire gripper, a retractable rod member, and a locking member. The first electric wire gripper is swingable with respect to the rod member. In the locked state, the lock member prohibits the swing of the first wire gripper with respect to the rod member, and the lock member in the unlocked state allows the first wire gripper to swing with respect to the rod member.

Description

wire cutting tool

The present invention relates to wire cutting tools.

There are known methods for cutting electric wires. In the wire cutting method, wire cutting tools are used. The electric wire cutting tool includes a first electric wire gripper, a second electric wire gripper, and a rod which is arranged between the first electric wire gripper and the second electric wire gripper so as to be retractable. When cutting the electric wire with the electric wire cutting tool, the first step is to hold the first part of the electric wire with the first electric wire gripper, and hold the second part of the electric wire with the second electric wire gripper. In the second step, the retractable rod is contracted so that the distance between the first electric wire gripper and the second electric wire gripper is reduced. As a result of this shrinkage, the electric wire between the first electric wire gripper and the second electric wire gripper becomes slack. The third step is to cut the electric wire at the position between the first electric wire gripper and the second electric wire gripper (the position where the electric wire is slack).

In Patent Document 1, a live wire cutting tool is described as a related technique. In the live wire cutting tool described in Patent Document 1, the first electric wire gripper is swingable with respect to the stretchable rod. When the wire cutting tool described in Patent Document 1 is used to cut the electric wire, the first step is to lift the first electric wire gripper with an insulating rod to attach the first electric wire gripper to the electric wire. The second step is to swing the retractable rod with respect to the first wire gripper. In the third step, the electric wire is supported by the electric wire supporter in the region between the first electric wire holder and the second electric wire holder. The fourth step is to attach the second wire gripper to the wire. In the fifth step, the retractable rod is contracted so that the first wire gripper and the second wire gripper are brought close to each other, thereby loosening the wires. The sixth step is to cut the electric wire at the position between the first electric wire gripper and the second electric wire gripper (the position where the electric wire is loosened). This method includes the step of relatively swinging the stretchable rod with respect to the first wire gripper. This method is referred to here as the "insulation rod method" or the "first method".

Moreover, in patent document 2, the anchor tool between posts for wire cutting construction is described. In the tool described in Patent Document 2, the first wire gripper, the stretchable rod, and the second wire gripper are arranged in a straight line. In the tool described in Patent Document 2, the retractable rod cannot be relatively swung with respect to the first wire gripper, nor can it be relatively swung with respect to the second wire gripper. When the wire cutting operation is performed with the tool described in Patent Document 2, the first step is to lift the entire wire cutting tool with pliers or the like, and place the wire cutting tool in the area between the first wire gripper and the second wire gripper. , support the wires by means of wire supports. The second step is to attach the first electric wire gripper to the electric wire, and attach the second electric wire gripper to the electric wire. In the third step, the retractable rod is contracted so that the first electric wire gripper and the second electric wire gripper are brought close to each other, thereby loosening the electric wire. The fourth step is to cut the electric wire at the position between the first electric wire gripper and the second electric wire gripper (the position where the electric wire is loosened). This method does not include the step of relatively swinging the retractable rod with respect to the first wire gripper. This method is referred to as the "one-shot method" or the "second method" here.

The prior art documents are: Patent Document 1: Japanese Patent Laid-Open No. 2010-88256; Patent Document 2: Japanese Patent Laid-Open No. 2015-70651.

However, the object to be cut, that is, the high-voltage electric wire, often has three electric wires arranged horizontally, and a low-voltage electric wire is already installed below it. Therefore, when installing the electric wire cutting tool on the electric wire, the protective cage of the high-altitude work vehicle must be close to the position near the high-voltage electric wire, and one operator must approach the electric wire from the protective cage of the high-altitude work vehicle. At this time, the operator can lift the long and heavy wire cutting tool to the wire position on the head by using an insulating rod or a pliers. When the operator reaches out to operate the wire cutting tool on the head in the narrow cage, he will be required to perform careful work to avoid losing balance and causing the wire cutting tool to fall to the ground, or be injured due to the loss of balance in his posture.

In the insulating rod method, the operator holds the insulating rod, lifts the first wire gripper (first tensioner) with the insulating rod, and directly attaches the first wire gripper (first tensioner) to the wire. In this method, even if the existing low-voltage wires are converged together and the cage cannot enter directly under the high-voltage wires, the operator can still take a slightly reluctant posture to cut the first wire at the front end of the wire cutting tool. The wire tensioner is securely attached to the wire. However, in the first work step of cutting construction, the installation position of the electric wire cutting tool is determined after the electric wire is tightened with the first wire tensioner. Therefore, it is not an easy operation for the operator to attach the first thread tensioner to the aimed position with high accuracy in a slanted posture from a slightly distant position. In addition, in the subsequent work steps, the operator will shift again from the cage to adjust the installation position of the wire cutting tool, which is a labor-intensive and time-consuming work, and cannot be said to be an efficient work.

On the other hand, in the one-shot method, in a state where the wire cutting tool is held by the tongs, the operator can hold the balance and lift the tongs by hand to attach the wire cutting tool to the wire. In this method, according to the positional relationship between the protective cage and the electric wire which is the object to be cut, the operator can temporarily attach the electric wire cutting tool to the position where it is easiest to attach the electric wire. Also, after the temporary installation of the electric wire cutting tool, the electric wire cutting tool can be moved horizontally on the electric wire to the electric wire cutting position. It is effective that the electric wire cutting tool can be moved horizontally because the adjacent electric wires must be shifted from each other in cutting positions, especially in the work of cutting three high-voltage electric wires at the same time. However, in the first work step, the operator must lift the wire cutting tool and the pliers to the head. Therefore, when the protective cage and the electric wire, which is the object to be cut, are far from each other, a large burden is placed on the body of the operator. In addition, when the electric wire is slanted, after attaching the electric wire cutting tool to the electric wire in the first work step, the electric wire cutting tool will slide down along the inclination direction of the electric wire due to gravity, so the electric wire cutting tool is temporarily Temporary fixing is necessary after installation. However, it is difficult to say that it is an efficient operation to temporarily fix the wire cutting tool after it is temporarily attached.

In the conventional wire cutting tool, when only a tool suitable for the insulating rod method is prepared, the insulating rod method must be implemented even when the one-shot method is applied. Or, in the case where the insulating rod method is not applicable, it is necessary to obtain a wire cutting tool for the one-shot method. On the other hand, when only a tool suitable for the disposable method is prepared, in the case where the insulating rod method is applied, the disposable method must be implemented. Or, if the one-shot method is not applicable, you must obtain a wire cutting tool for the insulating rod method. Of course, if a tool suitable for the insulating rod method and a tool suitable for the one-shot method are brought to the construction site at the same time, a more suitable construction method can be selected. However, in this case, both tools must be prepared and brought to the construction site.

Therefore, an object of the present invention is to provide a wire cutting tool which can solve the aforementioned problems, reduce the burden on the operator, perform wire cutting work safely and efficiently, and can respond to the surrounding conditions of the wire to be cut. , and appropriately select the insulating rod method (the first method) and the one-shot method (the second method) to execute.

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

(1) The electric wire cutting tool includes: a first electric wire holder; a second electric wire holder; a rod member arranged between the first electric wire holder and the second electric wire holder, and extending and contracting; an electric wire supporter , which is connected to the rod member and is rotatable around a longitudinal axis of the rod member; and a locking member; wherein the first wire gripper is oscillated about a swing center axis with respect to the rod member, and the swinging The central axis is perpendicular to the longitudinal axis, the locking member inhibits the swinging of the first wire gripper relative to the rod member in a locked state, and allows the first wire in an unlocked state The gripper swings with respect to the aforementioned rod member.

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

(3) The wire cutting tool according to the above (2), further comprising a potential energy imparting member that imparts the potential energy imparting member to the locking member in a direction from the second position toward the first position potential energy.

(4) The wire cutting tool according to (2) or (3) above, wherein the locking member is in a state where the first wire gripper, the rod member, and the second wire gripper are arranged in a straight line. It can move between the said 1st position and the said 2nd position.

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

(6) The wire cutting tool according to any one of the above (1) to (5), further comprising a first operation portion for operating the locking member, the first operation portion including a accommodating portion, and the accommodating portion can accommodate The end of the remote control stick.

(7) The electric wire cutting tool according to the above (6), wherein the first operation portion is rotatable around a rotation axis that is perpendicular to the swing center axis.

(8) The wire cutting tool according to the above (7), wherein the area of the accommodating portion in a plan view changes as the first operating portion rotates around the rotation axis, and the area of the accommodating portion in a plan view changes The area of the accommodating portion is maximized or minimized when the locking member is located at the locking position.

(9) The electric wire cutting tool according to any one of (6) to (8) above, further comprising a support member for supporting the locking member, wherein the locking member includes a protruding portion facing the locking member The support member is provided with: a shallow groove, which can be engaged with the protruding part of the locking member; and a deep groove, which can be engaged with the protruding part of the locking member.

(10) The wire cutting tool according to any one of the above (1) to (9), further comprising a guard member, the guard member covers the side surface of the locking member, and the guard member can be connected to the third position at the third position. The 3rd position is a position which covers the said side surface of the said locking member, and this 4th position is a position which exposes the said side surface of the said lock member.

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

According to the present invention, it is possible to provide a wire cutting tool which can be performed by appropriately selecting the insulating rod method (first method) and the one-shot method (second method) according to the surrounding conditions of the wire to be cut. As a result, the burden on the operator can be reduced, and the electric wire cutting construction can be performed safely and efficiently.

Hereinafter, the wire cutting tool in the embodiment will be described in detail with reference to the drawings. In addition, in this specification, the same or similar code|symbol is attached|subjected to the member which has the same function. In addition, the repeated description may be abbreviate|omitted about the member which attached the same or similar code|symbol.

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

(Embodiment) A wire cutting tool 1 in an embodiment will be described with reference to FIGS. 1 to 4 . 1 and 2 are schematic front views of the wire cutting tool 1 in the embodiment. 1 shows a state in which the first electric wire gripper 2 cannot swing with respect to the rod member 5 , and FIG. 2 shows a state in which the first electric wire gripper 2 can swing with respect to the rod member 5 . 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 a locking mechanism.

The electric wire cutting tool 1 is a tool used in the operation of cutting electric wires and disposing 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 also be referred to as an electric wire cutting aid. Furthermore, the wire cutting tool itself may be provided with a cutting blade for cutting the electric wire.

1 , the wire cutting tool 1 includes a first wire gripper 2, a second wire gripper 3, a retractable rod member 5 disposed between the first wire gripper 2 and the second wire gripper 3, The wire supporter 6 and the locking member 7 are connected to the rod member 5 .

The first wire gripper 2 is a tool that grips the first portion P1 of the wire W, and the second wire gripper 3 is a tool that grips the second portion P2, which is different from the first portion P1 of the wire W. part.

The retractable rod member 5 is a member that changes the distance between the first wire gripper 2 and the second wire gripper 3 . In the example described in FIG. 1 , one end of the rod member 5 is connected to the first wire gripper 2 and is swingable with respect to the first wire gripper 2 . That is, the rod member 5 can swing about the swing center axis S1 with respect to the first wire gripper 2 . Moreover, in the example shown in FIG. 1, the other end of the rod member 5 is connected to the 2nd wire gripper 3. As shown in FIG. The connection between the rod member 5 and the second wire gripper 3 is desirably connected so as not to swing.

In the example shown in FIG. 1 , the rod member 5 includes an outer member 51 (eg, a cylindrical first elongated member) and an inner member 52 (eg, a cylindrical or columnar second elongated member). A part of the inner member 52 is inserted inside the outer member 51 . The inner member 52 is movable relative to the outer member 51 in the direction of the longitudinal axis L1 of the rod member 5 , thereby changing the distance between the first wire gripper 2 and the second wire gripper 3 .

The wire supporter 6 is a member that supports the wire W in the region between the first wire gripper 2 and the second wire gripper 3 . The wire supporter 6 may be a member that supports the wire by directly contacting the wire W, or may be a member that defines the position of the wire W by surrounding the 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 accommodation space SP of the electric wire support 6 . As a result, the position of the electric wire W is regulated by the electric wire supporter 6 . Furthermore, the storage space SP will be described later.

In the example described in FIG. 1 , the number of the wire supports 6 is three (a first wire support 6a, a second wire support 6b, and a third wire support 6c). Alternatively, the number of the wire supports 6 may be 1, 2, or 4 or more.

At least one of the wire supports 6 is rotatable around the longitudinal axis L1 of the rod member 5 . In the example shown in FIG. 1, the 1st wire support 6a is rotatable about the longitudinal direction axis L1. The first electric wire supporter 6a supports one end of the electric wire W after the electric wire W is cut (the "supporting end" includes "the position of the predetermined end"). When the 1st wire supporter 6a is rotated about the longitudinal direction axis L1, the position of the one end part of the 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 supporter 6a is rotated 180 degrees around the longitudinal axis L1 from the state described in FIG. 1 . In this case, the position of one end of the electric wire W changes from the upper position of the rod member 5 to the lower position of the rod member 5 . Also, one end of the electric wire W can be separated from the other end of the electric wire W. As shown in FIG.

Next, the lock member 7 will be described. In the example shown in FIG. 1 , the first wire gripper 2 is swingable with respect to the rod member 5 around a swing center axis S1 that is perpendicular to the longitudinal axis L1 of the rod member. When the locking member 7 is in the locked state, relative swinging (swinging around the swing center axis S1 ) between the first wire holder 2 and the rod member 5 is prohibited, and when the locking member 7 is in the unlocked state, the first wire Relative swing (swing around the swing center axis S1 ) between the gripper 2 and the rod member 5 is allowed.

The lock member 7 may employ any mechanism as a lock mechanism for prohibiting relative swinging between the first wire gripper 2 and the rod member 5 . For example, a lock member (eg, a lock pin) may be inserted through the hole provided in the first wire gripper 2 and the hole provided in the rod member 5 to prohibit the above-described relative swinging. Furthermore, at least one of the hole provided in the first wire gripper 2 and the hole provided in the rod member 5 may be replaced with a recessed portion. As an alternative, as shown in FIG. 4 , the locking mechanism may also be a locking mechanism utilizing the engagement of the locking member 7 , that is, the hook member and the latch 8 . In the example shown in FIG. 4 , the hook member is rotatably provided on the first wire gripper 2 , and the latch 8 is provided on the rod member 5 . Alternatively, the hook member may be rotatably provided on the rod member 5 and the latch 8 may be provided on the first wire gripper 2 .

Assume that the wire cutting tool 1 is used when the locking member 7 is in the unlocked state. In this case, the relative swing between the first wire gripper 2 and the rod member 5 can be tolerated. Thereby, the insulating rod method or the first construction method in which the rod member 5 is relatively rocked with respect to the first wire gripper 2 can be performed when the electric wire is cut.

In the insulating rod method, for example, the following seven steps are performed. In the first step, the first electric wire gripper 2 is lifted with an insulating rod to attach the first electric wire gripper 2 to the electric wire W (in other words, the first electric wire gripper 2 is arranged on the electric wire) . In the second step, the retractable 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 supporter 6 in the region between the first electric wire holder 2 and the second electric wire holder 3 (in addition, in this specification, "supporting the electric wire" Including "Specify the location of the wire"). In the fourth step, the second electric wire gripper 3 is attached to the electric wire W (in other words, the second electric wire gripper 3 is arranged on the electric wire). In the fifth step, the retractable rod member 5 is contracted so that the first wire gripper 2 and the second wire gripper 3 are brought close to each other. By performing step 5, the wire W is loosened. In the sixth step, the electric wire W is cut at a position between the first electric wire gripper 2 and the second electric wire gripper 3 (a position where the electric wire is loosened). In the seventh step, the wire supporter 6 is rotated around the rod member 5 . By performing 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 locking member 7 is in the locked state. In this case, relative swinging between the first wire gripper 2 and the rod member 5 is prohibited. Thereby, when the electric wire cutting construction is performed, the one-shot method or the second construction method in which the rod member 5 is fixed relative to the first electric wire gripper 2 so as not to swing can be performed.

In the one-shot method, for example, the following five steps are performed. In the first step, the entire wire cutting tool 1 is lifted with a pliers or the like, and the wire is supported by the wire supporter 6 in the region between the first wire holder 2 and the second wire holder 3 W. In the second step, the first electric wire gripper 2 is attached to the electric wire W (in other words, it is arranged on the electric wire), and the second electric wire gripper 3 is attached to the electric wire W (in other words, it is arranged on the electric wire W). on the wire). In the third step, the retractable rod member 5 is contracted so that the first wire gripper 2 and the second wire gripper 3 are brought close to each other. By performing the third step, the wire W is loosened. In the fourth step, the electric wire W is cut at a position between the first electric wire gripper 2 and the second electric wire gripper 3 (a position where the electric wire is loosened). In the fifth step, the wire supporter 6 is rotated around the rod member 5 . By performing 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 locking member. Therefore, with the wire cutting tool in the embodiment, the insulating rod method or the one-shot method can be selectively performed. Therefore, in the case where the insulating rod method is applied, the one-shot method does not have to be performed, and in the case where the one-shot method is applied, the insulating bar method does not have to be performed. Moreover, it is not necessary to prepare a wire cutting tool suitable for the insulating rod system and a wire cutting tool suitable for the disposable system at the same time.

(Arbitrary additional configuration example) Next, an optional additional configuration example that can be employed in the embodiment will be described.

(First Configuration Example) With reference to FIGS. 5 and 6 , an optional additional first configuration example that can be employed in the embodiment will be described. FIG. 5 is a cross-sectional view taken along the line A-A of FIG. 1 . FIG. 6 is a cross-sectional view taken along line B-B of FIG. 2 . In addition, FIG. 5 shows the state when the lock member 7 is located in the lock position, and FIG. 6 shows the state when the lock member 7 is located in the unlock position.

In the example shown in FIG. 5 , the lock member 7 is located at the first position, which is a position for prohibiting the swing of the first wire gripper 2 with respect to the rod member 5 . On the other hand, in the example described in FIG. 6 , the lock member 7 is located at the second position, which is a position that allows the first wire gripper 2 to swing with respect to the rod member 5 . In addition, the lock member 7 is movable between the first position and the second position. Furthermore, in the first configuration example, the first position and the second position respectively indicate the position of the lock member 7 in the Y direction (that is, the position of the lock member 7 in the direction along the longitudinal axis).

In the example described in FIGS. 5 and 6 , the locking member 7 is a latch member and can be inserted into holes (50a, 50b) provided in the first wire gripper 2 or the rod member 5 at least one. Furthermore, among the cross-sectional shapes of the latch members (cross-sectional shapes perpendicular to the swing center axis S1 ), the cross-sectional shapes of the portions inserted into the holes ( 50 a , 50 b ) are preferably circular. However, the cross-sectional shape of the latch member may be a shape other than a circle.

In the example shown in FIG. 5 (that is, in the locked state), the locking member 7 is inserted into the holes ( 50 a , 50 b ) and abuts against the bottom surfaces ( 20 a , 20 b ) of the first wire gripper 2 . As a result, the first wire gripper 2 cannot swing downward with respect to the rod member 5 . In addition, in the example described in FIG. 1 , since the end of the first wire gripper 2 abuts against the stopper 5 a on the rod member 5 , the first wire gripper 2 cannot be relative to the rod. The member 5 swings upward. In this way, the swinging of the first wire gripper 2 with respect to the rod member 5 can be inhibited.

Alternatively, holes (50b, etc.) may be provided in the first wire gripper 2 and holes (50b, etc.) may be provided in the rod member 5, and the locking members 7 (eg, locking pins) may be inserted into these holes. In this case, in the locked state, the first wire gripper 2 cannot be swung downward with respect to the rod member 5 and cannot be swung upward.

In the example described in FIGS. 5 and 6 , the first wire gripper 2 is arranged inside the rod member 5 . Alternatively, the rod member 5 may be arranged inside the first wire gripper 2 . In this case, the holes ( 50 a , 50 b ) are not provided in the rod member 5 , but the holes are provided in the first wire gripper 2 . In addition, in the locked state, the locking member 7 can be inserted into the hole of the first wire gripper 2 and abutted against the top surface of the rod member 5 .

In the example described 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 may be other shapes. In the example described in FIGS. 5 and 6 , the support member 71 is fixed to the rod member 5 . Alternatively, when the first wire gripper 2 is disposed outside the rod member 5 , the support member 71 may be fixed to the first wire gripper 2 . As another alternative, the support member 71 may also be omitted. In the case where the support member 71 is omitted, the locking 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 to the rod member 5 , and a washer 72 is arranged between the support member 71 and the rod member 5 . Alternatively, the fixing of the rod member 5 or the like by the support member 71 may be performed by a method other than screwing.

In the first configuration example, the electric wire cutting tool 1 may have a potential energy imparting member 76 (eg, a spring such as a coil spring) that is opposed to the locking member in the direction from the second position to the first position. 7 Endows potential energy. In the example described in FIGS. 5 and 6 , the potential energy imparting member 76 is arranged inside the support member 71 . The potential energy imparting member 76 may be arranged between the receiving portion 71 a of the support member 71 and the receiving portion 7 a (see FIG. 6 ) of the locking member 7 .

When the wire cutting tool 1 is provided with the potential energy imparting member 76 to impart potential energy to the locking member 7 in the direction from the second position to the first position, the locking member 7 is moved from the second position to the first position , it is not necessary to continuously apply external force to the locking member 7 . Therefore, the operation of moving the lock member 7 from the second position to the first position becomes easy. In addition, when the locking member 7 is located at the first position, the locking member 7 can be effectively maintained at the first position by applying the potential energy member 76 . Therefore, the locking of the locking member 7 is not released unintentionally. For example, it is assumed that the locking member 7 is unintentionally released during transportation of the wire cutting tool. In this case, the first wire gripper 2 swings with respect to the rod member 5, so that the first wire gripper 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 potential energy imparting member 76 is provided, the lock will not be released unintentionally. This prevents the first wire gripper 2 from swinging relative to the rod member 5 when the wire cutting tool is transported, and prevents the first wire gripper 2 from colliding with the rod member 5 or other tools.

In the first configuration example, when the first wire gripper 2 , the rod member 5 , and the second wire gripper 3 are arranged in a straight line (that is, the state shown in FIG. 1 ), the lock member 7 is preferably It is possible to move between the 1st position and the 2nd position.

The state in which the 1st wire gripper 2, the rod member 5, and the 2nd wire gripper 3 are arrange|positioned in a straight line is the state which can perform a one-shot method. When performing the one-shot method, it may happen that it is difficult to continue the one-shot method. For example, if the first step (the step of supporting the electric wire W by the electric wire supporter 6 ) in the one-shot method is performed, and the first electric wire holder 2 is attached to the electric wire, it may happen that the second electric wire cannot be supported. With 3 installed to the wire. In this case, the locking member 7 is moved from the first position to the second position to allow relative swinging between the first wire gripper 2 and the rod member 5 . That is, in a one-shot mode execution, that is, when the wire cutting tool is not at hand but supported by an overhead wire (in the air), the one-shot mode execution can still be interrupted and switched to the insulating rod Way. As a result, the work of attaching the second electric wire gripper 3 to the electric wire W can be completed.

As described above, when the lock member 7 is movable between the first position and the second position in a state where the first wire gripper 2, the rod member 5, and the second wire gripper 3 are arranged in a straight line , in the execution of the one-shot mode, the execution of the one-shot mode can be interrupted and switched to the insulating rod mode.

Moreover, in the first configuration example, only when the first wire gripper 2 , the rod member 5 , and the second wire gripper 3 are arranged in a straight line, the locking member 7 may be able to communicate with the second wire at the first position. Move between 2 positions. In this case, when the first wire gripper 2, the rod member 5, and the second wire gripper 3 are not arranged in a straight line, the relative swinging of the first wire gripper 2 and the rod member 5 is not prohibited . Thereby, 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 in which the first wire gripper 2 , the rod member 5 , and the second wire gripper 3 are not arranged in a straight line. In the state shown in FIG. 6 , the first wire gripper 2 is positioned on the advancing and retreating path of the locking 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 the state in which the 1st wire gripper 2, the rod member 5, and the 2nd wire gripper 3 are arrange|positioned in a straight line. In the state shown in FIG. 5 , no member that hinders the movement of the lock member 7 is disposed on the advancing and retreating path of the lock member 7 . Therefore, the lock member 7 can move between the first position and the second position. Alternatively, in the case where the first wire gripper 2 and the rod member 5 are respectively provided with holes to accommodate the locking member 7, only the first wire gripper 2, the rod member 5, and the second wire gripper 3 The hole of the first electric wire gripper 2 and the hole of the rod member 5 are not aligned until they are arranged in a straight line. In this case, when the first wire gripper 2 , the rod member 5 , and the second wire gripper 3 are not arranged in a straight line, the hole of the first wire gripper 2 and the hole of the rod member 5 will not be aligned. Align. Therefore, 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. Tensile tension mainly acts on the rod member 5 of the wire cutting tool 1 . When the locking member 7 is movable in the direction perpendicular to the tensile tension, that is, in the direction parallel to the swing center axis S1, even in the state where the tensile tension acts, it is possible to easily make The lock member 7 moves between the first position and the second position.

(Second configuration example) With reference to Figs. 5 to 7, an optional additional second configuration example that can be employed in the embodiment will be described. FIG. 7 is a schematic perspective view schematically showing the periphery of the locking member 7 . In addition, in FIG. 7, description of the protection member 9 mentioned later is abbreviate|omitted.

In the second configuration example, the wire cutting tool 1 includes the first operation portion 74 that operates the lock member 7 . Moreover, the 1st operation part 74 contains the accommodating part 740 which can accommodate the end part of a remote control stick.

In the example shown in FIG. 5 , the first operation portion 74 is provided at the end portion of the lock member 7 . In the example shown in FIG. 5 , the first operation portion 74 and the lock member 7 are independent members, but the first operation portion 74 and the lock member 7 may be formed as a single member. Furthermore, in the example shown in FIG. 5 , the first operating portion 74 and the locking member 7 are directly connected (eg, screwed together), but the first operating portion 74 and the locking member 7 may be transmitted through a connecting member or the like. agency to connect.

The accommodating portion 740 has a shape capable of accommodating an end portion (eg, a hook portion) of the remote operation stick. The accommodating portion 740 may be, for example, a ring shape (that is, a closed shape with a hole on the inside) or a hook shape.

When the first operation part 74 is provided with the accommodating part 740 that can accommodate the end of the remote operation stick, even if the lock member 7 is located far away from the operator, the operator can still operate the first operation part with the remote operation stick 74, the locking member 7 is moved. For example, assume that the wire cutting tool 1 is supported by an overhead wire. Even in this case, the operator can operate the first operation part 74 with the remote operation stick from the workbench of the high-altitude work vehicle or the ground.

In the second configuration example, the first operation portion 74 (more specifically, the housing portion 740 ) may be rotated around the rotation axis R1 parallel to the swing center axis S1. In addition, after the first operation portion 74 is rotated (for example, rotated 90 degrees) around the rotation axis R1, the lock member 7 may be configured to be movable from the lock position to the unlock position. Furthermore, in the second configuration example, the locked position and the unlocked position represent at least the rotational positions of the locking member 7 around the rotation axis R1, respectively.

Assume that the wire cutting tool 1 is supported by an overhead wire. In this case, in the state shown in FIG. 5 , that is, when the locking member 7 is in the locked position, the receiving portion 740 is substantially linear in the bottom view. On the other hand, in the state shown in FIG. 6 , that is, when the lock member 7 is in the unlocked position, the accommodating portion 740 has a substantially annular shape when viewed from the bottom. Thereby, the operator can easily grasp whether the locking member 7 of the electric wire cutting tool 1 supported by the overhead electric wire is in the locked position or the unlocked position.

It will be further explained in detail. 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 housing portion 740 is projected on the projection surface by parallel rays of light parallel to the Z direction. When the first operation portion 74 (the housing portion 740 ) is rotated around the rotation axis R1 , the area (projected area) of the housing portion 740 reflected on the projection surface changes.

In the example shown in FIG. 5 (an example in which the locking member 7 is in the locked position), when the housing portion 740 is projected on the projection surface by parallel rays parallel to the Z direction, the projected area of the housing portion 740 is minimized. On the other hand, in the example described in FIG. 6 (the example in which the locking member 7 is in the unlocked position), when the housing portion 740 is projected on the projection surface by the parallel light rays parallel to the Z direction, the projection of the housing portion 740 area will be the largest. In this case, the annular shape of the accommodating portion 740 can be easily grasped from the bottom view. Alternatively, when the accommodating portion 740 is hook-shaped, the hook-shaped shape of the accommodating portion 740 can be easily grasped from the bottom view.

From the viewpoint of visibility, when the locking member 7 is located at the locking position, the projected area of the accommodating portion 740 desirably becomes the largest or smallest. In other words, it is preferable that the area of the accommodating portion 740 in the plan view will change as the first operation portion 74 rotates around the rotation axis R1, and the area of the accommodating portion 740 in the plan view is when the locking member 7 is in the locked position. becomes the largest or smallest.

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 locking member 7 (more specifically, the shaft portion 7b of the locking member) is provided with a protruding portion 7c that protrudes toward the radially outer direction of the locking member. When the protrusion 7c of the locking member 7 is engaged with the shallow groove 712, the locking member 7 is in the unlocking position. At this time, the rod member 5 can swing with respect to the first wire gripper 2 . On the other hand, when the protruding portion 7c of the locking member 7 is engaged with the deep groove 714, the locking member 7 is in the locking position. At this time, the rod member 5 cannot swing with respect to the first wire gripper 2 .

In order to move the locking member 7 from the unlocking position to the locking position, the first operation portion 74 must be moved in the Y direction against the force imparted by the force imparting member 76 , and the first operation portion 74 must be moved in the Y direction. 74 rotates around the axis of rotation R1. And, when the position of the protrusion 7c of the locking member 7 is aligned with the position of the deep groove 714, the locking member 7 is moved to the locking position (ie, the first position) by imparting potential energy to the potential energy imparting member 76. In order to move the locking member 7 from the locking position to the unlocking position, the first operation portion 74 may be operated in the reverse order of the above-described operation (operation of moving the locking member 7 from the unlocking position to the locking position).

When the support member 71 is provided with the shallow groove 712 that can be engaged with the locking member 7 and the deep groove 714 that can be engaged with the locking member 7, the locking member 7 can be selectively positioned at the locking position or the unlocking position. Therefore, the locking member 7 can be prevented from moving from the locked position to the unlocked position, or from the unlocked position to the locked position, unintentionally.

In addition, in the example described 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 portion 74 (more specifically, the housing portion 740 ) is rotated 90 degrees around the rotation axis R1 , the locking member 7 moves from the locked position to the unlocked position (or, from the unlocked position to the locked position) ).

Furthermore, as shown in FIG. 7 , two shallow grooves 712 and two deep grooves 714 may be provided on the support member 71 . In the example shown 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. In addition, the two deep grooves 714 are also arranged in a straight line. Therefore, the lock member 7 can be alternately arranged at the lock position and the unlock position every time the first operation portion 74 is rotated by 90 degrees around the rotation axis R1.

Moreover, in the example shown in FIG. 7, the locking member 7 is provided with two protrusion parts 7c. In addition, the two protrusions 7c are arranged in a straight line. Therefore, the locking member 7 can be stably supported by the supporting member 71 by engaging the two protruding portions 7c with the two shallow grooves 712 or the two deep grooves 714 .

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

In the third configuration example, the wire cutting tool 1 includes the guard member 9 covering the side surface of the lock member 7 . In the example shown in FIG. 6 , the guard member 9 covers the shaft portion 7 b of the lock member 7 . Also, the guard member 9 is movable between a third position (the position shown in FIG. 6 ), which is a position covering the side surface of the locking member 7 , and a fourth position that allows the locking member 7 to be closed. side exposed position. More specifically, the guard member 9 is movable in the Y direction and the opposite direction to the Y direction.

The outer side surface of the support member 71 may also be provided with an outer thread 71b, and the inner side surface of the guard member 9 may also be provided with an inner thread 9b. In this case, by rotating the guard member 9 around a straight line parallel to the Y direction, the guard member 9 can be moved between the third position and the fourth position.

As shown in FIG. 6 , the locking member 7 (more specifically, the shaft portion 7 b of the locking member) is protected by the guard member 9 . Therefore, there is less risk of damage to the locking member 7 when other members collide with the wire cutting tool 1 . For example, when other members collide with the wire cutting tool 1, there is less risk of the shaft portion 7b of the locking member 7 breaking.

In the third configuration example, the guard member 9 may be provided with a stopper 92 that can restrict the movement of the lock member 7 . In the example shown 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 . Thereby, the lock member 7 cannot move toward the 1st position (lock position) from the 2nd position.

In the case of implementing the insulating rod method, the guard member 9 is moved to the third position (the position shown in FIG. 6 ). In this case, the locking member 7 would be protected by the guard member 9 . In addition, when the guard member 9 is provided with the stopper 92, in the implementation of the insulating rod method, there is no risk that the lock member 7 will move from the second position to the first position.

(Fourth Configuration Example) With reference to FIGS. 8 and 9 , an optional additional fourth configuration example that can be employed in the embodiment will be described. FIG. 8 is an enlarged view of a region indicated by arrow C in FIG. 1 . FIG. 9 is an enlarged view of a region indicated by arrow D in FIG. 3 .

The fourth configuration example relates to an example of the connection portion between the first wire gripper 2 and the rod member 5 . In the fourth configuration example, the wire cutting tool 1 includes the latch member 40 which is arranged along the swing center axis S1. The latch member 40 may have a shaft portion 40a and a head portion 40b. As shown in FIG. 9 , the shaft portion 40 a is arranged to pass through the through hole 28 provided in the first wire gripper 2 and the through hole 58 provided in the rod member 5 . In addition, the first wire gripper 2 and the rod member 5 are relatively swingable around the shaft portion 40 a of the latch member 40 . Alternatively, the latch member 40 may be fixed to one of the first wire gripper 2 and the rod member 5 .

In the example shown in FIG. 9, in the connection part between the 1st wire holder 2 and the rod member 5, the 1st wire holder 2 is equipped with two plate parts (27a, 27b). Moreover, the rod member 5 is provided with two plate parts (57a, 57b). In addition, in a state where the two plate portions (27a, 27b) of the first wire gripper are sandwiched by the two plate portions (57a, 57b) of the rod member, the first wire gripper 2 and the rod member 5 are inserted through the latch The member 40 is connected.

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

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

(Configurations other than the connecting portion between the first wire gripper and the rod member) An example of configurations other than the connecting portion between the first wire gripper 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 wire cutting tool 1 in the embodiment. FIG. 11 is a schematic plan view of the wire cutting tool 1 in the embodiment. FIG. 12 is an E-E arrow perspective view in FIG. 10 .

(1st wire gripper 2) The 1st wire gripper 2 is provided with the wire gripping part 23, the parallel link mechanism G1, and the part connected to the rod member 5, ie, the gripper side connection part G2.

The wire gripping portion 23 is a portion that grips the wire W. The electric wire holding part 23 includes an upper holding piece 23a and a lower holding piece 23b. The distance between the bottom surface of the upper side holding piece 23a and the top surface of the lower side holding piece 23b is changed by the action of the parallel link mechanism. By reducing the distance between the bottom surface of the upper holding piece 23a and the top surface of the lower holding piece 23b, the electric wire W is held between the bottom surface of the upper holding piece 23a and the top surface of the lower holding piece 23b.

The parallel link mechanism G1 includes an upper holding piece 23 a , a first swing member 24 a , a second swing member 24 b , and a lower support member 25 . The upper holding piece 23a and the lower support member 25 are arranged to face each other, and the first swing member 24a and the second swing member 24b are arranged to face each other, and these four members constitute the parallel link mechanism G1. The upper holding piece 23a and the first rocking member 24a are connected so as to be relatively rotatable on the first axis AX1, and the upper holding piece 23a and the second rocking member 24b are connected so as to be relatively rotatable on the second axis AX2. In addition, the lower holding piece 25 and the first rocking member 24a are connected so as to be relatively rotatable on the third axis AX3, and the lower support member 25 and the second rocking member 24b are connected so as to be relatively rotatable on the fourth axis AX4 freely.

The 1st rocking member 24a is provided with the 1st extension part 240a extended to the rod member 5 side rather than the 1st axis|shaft AX1. Moreover, the 1st rocking member 24a is rotatably connected to the lower side holding piece 23b on the 5th axis|shaft AX5 arrange|positioned at this 1st extension part 240a. Moreover, the 2nd rocking member 24b is provided with the 2nd extension part 240b extended to the rod member 5 side rather than the 2nd axis|shaft AX2. The second rocking member 24b is rotatably connected to the lower grip piece 23b on the sixth axis AX6 arranged in the second extension portion 240b.

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-side support member 25 may be independent members. The gripper-side connecting portion G2 and the rod member 5 are rotatably connected by the above-described latch member 40 .

An example of the mechanism by which the first electric wire gripper 2 grasps the electric wire W will be described below. The electric wire W is arranged between the upper grip piece 23a and the lower grip piece 23b of the first electric wire gripper 2, and the electric wire W is arranged between the upper grip piece 33a and the lower grip piece 33b of the second electric wire gripper 3 . Next, the retractable rod member 5 is contracted. When the retractable rod member 5 is contracted, the lower support member 25 is pulled toward the rod member 5 side. After the lower support member 25 is pulled toward the rod member 5 side, the fifth axis AX5 rotates and moves upward about the first axis AX1 by the parallel link mechanism G1, and the sixth axis AX6 rotates along the second axis AX1. The axis AX2 rotates and moves upward. In this way, the distance between the bottom surface of the upper holding piece 23a and the top surface of the lower holding piece 23b is reduced to hold the electric wire W between the upper holding piece 23a and the lower holding piece 23b.

In addition, the first electric wire gripper 2 may be provided with the gripper locking member 29 . The gripper locking member 29 is a member for maintaining the state where the electric wire W is held between the upper grip piece 23a and the lower grip piece 23b, in other words, it defines the distance between the upper grip piece 23a and the lower grip piece 23b. member.

In the example described in FIG. 10 , the gripper locking member 29 is attached to the lower support member. Further, the gripper locking member 29 includes an operation portion 29a (eg, an operation ring) and an advancing and retracting rod that can approach and separate from the parallel link mechanism G1 (more specifically, the first rocking member 24a). And by rotating the operation part 29a (for example, an operation ring) with a remote control tool, the advancing and retracting rod can be brought into contact with the first rocking member 24a. As a result, the movable range of the parallel link mechanism can be restricted. In this way, the distance between the upper holding piece 23a and the lower holding piece 23b does not expand beyond the predetermined distance.

When the electric wire W has been placed between the upper holding piece 23a and the lower holding piece 23b, the electric wire W between the upper holding piece 23a and the lower holding piece 23b can be maintained by operating the gripper locking member 29 the state of control. Therefore, the first electric wire gripper 2 can be prevented from falling off the electric wire W unintentionally. When the electric wire cutting operation by the electric wire cutting tool 1 is temporarily interrupted, the gripper locking member 29 can be appropriately used.

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

(Rod member 5 ) The rod member 5 includes an outer member 51 , an inner member 52 , and a second operation portion 53 . The second operating portion 53 is a portion for operating the relative movement of the inner member 52 with respect to the outer member 51 . The second operation portion 53 is connected to the rod member 5 and is rotatable around a rotation axis R2 parallel to the Z direction. The second operating portion 53 includes an engaging portion 530 for engaging the distal end of the remote operating member.

An example of a mechanism for contracting the telescopic rod member 5 by the remote operation member will be described. As an example, it is assumed that (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 outer member 51 is arranged on the There is a second bevel gear, the second bevel gear is connected to the first bevel gear, and can transmit a load with the first bevel gear, (C) the second bevel gear is a threaded rod with an external thread arranged around the rod. The member 5 is rotated about the longitudinal axis L1, and (D) the inner member 52 is screwed to the threaded rod. In this case, when the second operation portion 53 is rotated around the rotation axis R2 by the remote operation member, the first bevel gear is rotated around the rotation axis R2, and the second bevel gear is rotated 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 is rotated around the longitudinal axis L1 , the inner member 52 screwed to the screw rod moves in the direction of being pulled into the outer member 51 . In this way, the rod member 5 can be contracted.

In addition, in the embodiment, the mechanism for shrinking the rod member is not limited to the above-mentioned mechanism.

(Wire Supporter 6 ) The wire supporter 6 is a member that supports the wire W in the region between the first wire holder 2 and the second wire holder 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 wire holder 6 a is arranged between the first wire holder 2 and the second operation part 53 , and the second wire holder 6 b is arranged between the second operation part 53 and the second wire holder 3 . As an alternative, the 2nd wire supporter 6b may be arrange|positioned between the 1st wire supporter 6a and the 2nd operation part 53. As shown in FIG.

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

As shown in FIG. 12, the 1st wire supporter 6a is provided with the accommodation space SP which accommodates the electric wire W. As shown in FIG. In the example shown in FIG. 12, the 1st wire support tool 6a is provided with the frame member 61a and the opening-closing member 62a which can open and close the opening part of the frame member 61a freely. Furthermore, the accommodation space SP is defined by the frame member 61a and the opening and closing member 62a.

Referring to Fig. 10 , the second wire support 6b is attached to the rod member 5 (more specifically, the outer member 51). The second wire support 6b cannot rotate around the longitudinal axis L1 of the rod member 5 . Alternatively, the second wire support 6b may be attached to the rod member 5, the second wire support 6b may be rotatable around the longitudinal axis L1 of the rod member 5, and the first wire support 6a may be attached to the rod The member 5 is such that the first wire support 6 a cannot be rotated about the longitudinal axis L1 of the rod member 5 . As another alternative, both the first wire supporter 6a and the second wire supporter 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 2nd wire supporter 6b is the same as that of the 1st wire supporter 6a. Therefore, the description of the 2nd wire support 6b is abbreviate|omitted here.

It is assumed that the first end portion of the cut electric wire and the second end portion of the cut electric wire are separated by the first wire supporter 6a and the second wire supporter 6b. In this case, first, the rod member 5 is moved in the Y direction so that the electric wire W passes through the accommodation space SP of the first electric wire support 6a and the accommodation space of the second electric wire support 6b. By this movement of the rod member 5, the electric wire W passes through the opening part of the frame member 61a of the 1st electric wire support tool 6a, and is accommodated in the accommodation space SP of the 1st electric wire support tool 6a. Similarly, by the movement of the rod member 5, the electric wire W passes through the opening of the frame member of the second electric wire support 6b, and is accommodated in the accommodation space 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 tool 6a and the 2nd electric wire support tool 6b. Next, the first end portion of the cut electric wire is moved below the rod member 5 by rotating the first wire supporter 6 a around the longitudinal axis L1 of the rod member 5 (for example, by 180 degrees). In this way, the first end portion of the cut electric wire and the second end portion of the cut electric wire are separated from each other.

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

In the example shown in FIG. 12 , in a side view (that is, when the first wire supporter 6a and the third wire supporter 6c are viewed along the longitudinal axis L1 of the rod member 5), the first wire support The positions of the center C1 of the tool 6a and the center C2 of the third wire support tool 6c in the Y direction (that is, the direction along the swing center axis S1) are different. In addition, the center C1 of the 1st wire support 6a means the center of the accommodation space SP defined by the frame member 61a and the opening and closing member 62a, and the center of the third wire support 6c means the frame member 61c and the opening and closing member 62c. The center of the containment space SP2.

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

Furthermore, in the example described in FIG. 12 , the first wire supporter 6a and the third wire supporter 6c are connected to a common base 64 that is attached to the rod member 5 and can be wound around the rod member 5 . The longitudinal axis L1 rotates.

In the example described in FIG. 12 , the wire cutting tool 1 includes a first wire support 6 a and a third wire support 6 c which are arranged on the first wire support with respect to the rod member 5 Opposite side of 6a. Therefore, according to the thickness, arrangement, etc. of the electric wire to be cut, the electric wire support used for the electric wire cutting operation can be selected from the first electric wire support 6a or the third electric wire support 6c.

With the wire cutting tool of the present invention, the wire cutting operation can be performed by selecting the most suitable construction method from the first construction method (insulating rod method) or the second construction method (one-shot method). Therefore, the present invention is useful for manufacturers of wire cutting tools and for those who perform wire cutting work.

1‧‧‧Wire cutting tool 2‧‧‧First wire gripping tool 20a, 20b‧‧‧Bottom 23‧‧‧Wire gripping part 23a‧‧‧Upper gripping piece 23b‧‧‧Lower gripping piece 24a‧‧‧ 1 rocking member 24b‧‧‧second rocking member 240a‧‧first extension part 240b‧‧‧second extending part 25‧‧‧lower support member 27a, 27b‧‧‧plate part 28‧‧‧through hole 29 ‧‧‧Grip locking member 29a‧‧‧Operating section 3‧‧‧Second wire gripping tool 33a‧‧‧Upper gripping piece 33b‧‧‧Lower gripping piece 40‧‧‧Plugging member 40a‧‧‧Shaft portion 40b ‧‧‧Head 5‧‧‧Rod member 5a‧‧‧Stoppers 50a, 50b‧‧‧hole 51‧‧‧Outer member 52‧‧‧Inner member 53‧‧‧Second operating portion 530‧‧‧Card Joint part 57a, 57b‧‧‧plate part 58‧‧‧through hole 6‧‧‧Wire support 6a‧‧‧First wire support 6b‧‧‧Second wire support 6c‧‧‧3rd wire support 61a, 61c‧‧‧Frame members 62a, 62c‧‧‧Opening and closing member 64‧‧‧Base part 7‧‧‧Locking member 7a‧‧‧Receiving part 7b‧‧‧Shaft part 7c‧‧‧Protruding part 71‧‧‧Support Member 71a‧‧‧Receiving part 71b‧‧‧External thread 712‧‧‧Shallow groove 714‧‧‧Deep groove 72‧‧‧ Washer 74‧‧‧First operation part 740‧‧‧Receiving part 76‧‧‧Applying potential energy Member 8‧‧‧Plunger 9‧‧‧Protective member 9b‧‧‧Female thread 92‧‧‧Stopper AX1‧‧‧1st axis AX2‧‧‧2nd axis AX3‧‧‧3rd axis AX4‧‧‧ The 4th axis AX5‧‧‧The 5th axis AX6‧‧‧The 6th axis C1, C2‧‧‧Center G1‧‧‧Parallel link mechanism G2‧‧‧Grip side connecting part L1‧‧‧longitudinal axis R1 , R2‧‧‧Rotation axis S1‧‧‧Swing center axis SP, SP2‧‧‧Accommodating space P1‧‧‧Part 1 P2‧‧‧Part 2 W‧‧‧Wire X, Y, Z‧‧‧ directions

FIG. 1 is a schematic front view of the wire cutting tool in the embodiment. FIG. 2 is a schematic front view of the wire cutting tool in the embodiment. 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 a locking mechanism. FIG. 5 is a cross-sectional view taken along the line A-A of FIG. 1 . FIG. 6 is a cross-sectional view taken along line B-B of FIG. 2 . FIG. 7 is a schematic perspective view schematically showing the periphery of the locking member. FIG. 8 is an enlarged view of a region indicated by arrow C in FIG. 1 . FIG. 9 is an enlarged view of a region indicated by arrow D in FIG. 3 . FIG. 10 is a schematic front view of the wire cutting tool in the embodiment. 11 is a schematic plan view of the wire cutting tool in the embodiment. FIG. 12 is an E-E arrow perspective view in FIG. 10 .

1‧‧‧Wire cutting tools

2‧‧‧First wire holder

3‧‧‧Second wire holder

5‧‧‧Rod member

5a‧‧‧stop

51‧‧‧Outer member

52‧‧‧Inner member

6‧‧‧Wire support

6a‧‧‧First wire support

6b‧‧‧Second wire support

6c‧‧‧The third wire support

7‧‧‧Locking member

L1‧‧‧long direction axis

P1‧‧‧Part 1

P2‧‧‧Part 2

S1‧‧‧Swing center axis

SP‧‧‧Containment Space

W‧‧‧Wire

X, Y, Z‧‧‧ directions

Claims (11)

A wire cutting tool, comprising: a first wire holder; a second wire holder; a rod member arranged between the first wire holder and the second wire holder, and extending and retracting; and a wire support for connecting the rod member is rotatable about an axis in the longitudinal direction of the rod member; and a locking member; wherein the first electric wire gripper is swingable relative to the rod member about a swing center axis, the swing center axis It is perpendicular to the longitudinal axis, and the locking member in the locked state prohibits the swinging of the first wire gripper relative to the rod member, and in the unlocked state, the locking member allows the first wire gripper With respect to the swinging of the rod member; the other end of the rod member is connected to the second electric wire holder so as not to swing. The wire cutting tool of claim 1, wherein the locking member is movable between a first position and a second position, the first position being a position prohibiting the swinging of the first wire gripper relative to the rod member, the first position The second position is a position that allows the first electric wire gripper to swing with respect to the rod member. The wire cutting tool of claim 2, further comprising a potential energy imparting member that imparts potential energy to the locking member in a direction from the second position toward the first position. The wire cutting tool according to claim 2, wherein in a state where the first wire holder, the rod member, and the second wire holder are arranged in a straight line, the locking member can be in the first position and the second wire holder. move between locations. The wire cutting tool according to claim 3, wherein in a state where the first wire holder, the rod member, and the second wire holder are arranged in a straight line, the locking member can be in the first position and the second wire holder. move between locations. The wire cutting tool of claim 2, wherein the locking member is movable in a direction parallel to the swing center axis. The wire cutting tool of claim 3, wherein the locking member is movable in a direction parallel to the swing center axis. The wire cutting tool of claim 4, wherein the locking member is movable in a direction parallel to the swing center axis. The wire cutting tool of claim 5, wherein the locking member is movable in a direction parallel to the swing center axis. The wire cutting tool according to any one of claims 1 to 9, further comprising a guard member, the guard member covers the side surface of the locking member, the guard member can move between the third position and the fourth position, the guard member is The third position is a position covering the side surface of the locking member, and the fourth position is a position where the side surface of the locking member is exposed. The wire cutting tool of claim 10, wherein the guard member includes a stopper, and the stopper restricts the movement of the lock member.

Images