Wire gripper, wire cutting tool, and method of using the wire gripper

Abstract

The present invention addresses the problem of providing a wire gripper, a wire rod cutting tool, and a method for using a wire gripper with which it is possible to maintain an interval between a first grip part and a second grip part of the wire gripper at a predetermined interval.　The wire gripper comprises: a base member including a first grip part that comes into contact with a wire rod; a second member including a second grip part that comes into contact with the wire rod; a swing member that is connected to the base member so as to be rotatable about a first axis, and that is connected to the second member so as to be rotatable about a second axis; and a lever member connected to the swing member so as to be rotatable about a third axis. The base member comprises a guide part for guiding the movement of the lever member, a first engaging part capable of engaging with the lever member, and a first operation part. The problem is solved by the first operation part moving the first engaging part so as to transition from a first state in which the first engaging part and the lever member are disengaged to a second state in which the first engaging part is engaged with the lever member.

Description

[Technical Field]

[0001] The present invention relates to a wire gripper, a wire cutting tool, and a method for using the wire gripper. [Background technology]

[0002] BACKGROUND ART Wire grippers for gripping wires such as overhead electric wires are known.

[0003] As a related technique, Patent Document 1 describes a wire gripper. The wire gripper described in Patent Document 1 includes a first member that contacts the wire, a second member that contacts the wire, a swing member that is rotatably connected to the first member, and a lever member that is rotatably connected to the swing member. An embodiment of Patent Document 1 describes that a recess that can engage with a guide portion of the first member is provided on the underside of the lever member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2020 / 144975 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a wire gripper, a wire cutting tool, and a method of using a wire gripper that can maintain a predetermined distance between the first gripping portion and the second gripping portion of the wire gripper. [Means for solving the problem]

[0006] The present invention relates to a wire gripper, a wire cutting tool, and a method of using the wire gripper, as described below.

[0007] (1) a base member having a first gripping portion that contacts the wire; a second member having a second gripping portion that contacts the wire; a swinging member connected to the base member so as to be rotatable about a first axis and connected to the second member so as to be rotatable about a second axis; a lever member connected to the swing member so as to be rotatable about a third axis; Equipped with The base member is a guide portion that guides the movement of the lever member; a first engagement portion engageable with the lever member; a first operating portion that moves the first engaging portion from a first state in which the first engaging portion and the lever member are disengaged to a second state in which the first engaging portion is engaged with the lever member; and Equipped with wire grabber. (2) The device further includes a first biasing member that biases the swinging member in a first rotation direction around the first axis so that the gap between the first gripping portion and the second gripping portion decreases. The wire gripper described in (1) above. (3) A second biasing member is further provided to bias the first engaging portion in a direction away from the lever member, When the operating force acting on the first operating portion is removed, the first engaging portion automatically retreats in a direction away from the lever member due to the biasing force of the second biasing member. The wire gripper according to (1) or (2) above. (4) an engaging member having the first engaging portion; a second guide portion that guides the movement of the engaging member; a link mechanism for moving the engaging member forward and backward; Further comprising: the link mechanism includes a plurality of arms and a plurality of swing shafts, The first operating portion is configured by a portion of the link mechanism that is exposed from the second guide portion. The wire gripper described in (3) above. (5) The device further includes a second operating member that moves the first engaging portion from a first state in which the first engaging portion and the lever member are disengaged to a second state in which the first engaging portion is engaged with the lever member, The second operating member can maintain the first engagement portion at an advanced position where the first engagement portion engages with the lever member even when an operating force acting on a second operating portion of the second operating member is removed. The wire gripper according to (3) or (4) above. (6) The lever member is a second engagement portion engageable with the first engagement portion; a third engagement portion that is engageable with the first engagement portion and is separate from the second engagement portion; Equipped with The wire gripper according to any one of (1) to (5) above. (7) A threaded rod is further provided for converting an operating force acting on the first operating portion into a movement of the first engaging portion. The wire gripper according to any one of (1) to (6) above. (8) The wire gripper according to any one of (1) to (7) above; an extendable rod member connected to the wire gripper; a second wire gripper connected to the rod member; Equipped with Wire cutting tool. (9) A method of using the wire gripper according to any one of (1) to (7) above, an engaging step of engaging the first engaging portion with the lever member by operating the first operating portion; an arrangement step of arranging the wire between the first gripping portion and the second gripping portion in a state in which the first engagement portion and the lever member are engaged with each other; a disengagement step of disengaging the first engagement portion and the lever member; a wire rod holding step of holding the wire rod by the first holding portion and the second holding portion by rotating the swinging member around the first axis; Equipped with How to use the wire gripper. (10) The disengagement step is automatically performed when the operating force acting on the first operating portion is removed. A method for using the wire gripper described in (9) above. [Effects of the Invention]

[0008] The present invention provides a wire gripper, a wire cutting tool, and a method of using a wire gripper that can maintain a predetermined distance between the first gripping portion and the second gripping portion of the wire gripper. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic two-sided view showing a wire gripper according to a first embodiment. [Figure 2] FIG. 2 is a schematic perspective view showing an example of a guide portion. [Figure 3] FIG. 3 is a schematic front view showing the wire gripper according to the first embodiment. [Figure 4] FIG. 4 is a schematic front view showing the wire gripper according to the first embodiment. [Figure 5] FIG. 5 is a schematic front view showing the wire gripper according to the first embodiment. [Figure 6] FIG. 6 is a schematic front view showing a wire gripper according to a first modified example of the first embodiment. [Figure 7] FIG. 7 is a schematic front view showing a wire gripper according to a second modified example of the first embodiment. [Figure 8] FIG. 8 is a schematic front view showing a wire gripper according to a third modified example of the first embodiment. [Figure 9] FIG. 9 is a schematic front view showing the wire gripper according to the second embodiment. [Figure 10] FIG. 10 is a schematic front view showing a wire gripper according to a first modified example of the second embodiment. [Figure 11] FIG. 11 is a schematic front view showing a wire slicing tool according to the third embodiment. [Figure 12] FIG. 12 is a flowchart showing an example of a method of using the wire gripper according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, the wire gripper 1, the wire cutting tool 100, and the method of using the wire gripper according to the embodiment will be described in detail with reference to the drawings. In this specification, components having the same functions are given the same or similar reference numerals. Furthermore, repeated explanations of components given the same or similar reference numerals may be omitted.

[0011] (Direction definition) In this specification, the extension direction of the wire gripped by the wire gripper, in other words, the extension direction of the first contact surface 11a that contacts the wire in the wire gripper, is defined as the "first direction DR1." More specifically, the extension direction of the wire gripped by the wire gripper, in which the lever member 50 is pulled, is defined as the "first direction DR1," and the direction opposite to the first direction DR1 is defined as the second direction DR2. In addition, in this specification, the first direction DR1 side of the wire gripper 1 may be referred to as the "rear," and the second direction DR2 side of the wire gripper 1 may be referred to as the "front."

[0012] (First embodiment) A wire gripper 1A according to a first embodiment will be described with reference to FIGS. 1 to 8. FIG. 1 is a schematic two-sided view showing the wire gripper 1A according to the first embodiment. The left side of FIG. 1 shows a schematic front view, and the right side of FIG. 1 shows a schematic side view. FIG. 2 is a schematic perspective view showing an example of a guide portion 16. FIGS. 3 to 5 are schematic front views showing the wire gripper 1A according to the first embodiment. FIG. 6 is a schematic front view showing the wire gripper 1A according to a first modified example of the first embodiment. FIG. 7 is a schematic front view showing the wire gripper 1A according to a second modified example of the first embodiment. FIG. 8 is a schematic front view showing the wire gripper 1A according to a third modified example of the first embodiment. In FIGS. 1 and 3 to 8, cross-sectional views of the lower end portion 20 of the base member 10 are shown to make it easier to understand the internal structure of the lower end portion 20.

[0013] The wire gripper 1A in the first embodiment includes a base member 10 (in other words, a first member), a second member 30, a swing member 40, and a lever member 50.

[0014] The base member 10 includes a first gripping portion 11, which has a first contact surface 11a that contacts the wire W (more specifically, the upper side surface of the wire W). The cross-sectional shape of the first contact surface 11a perpendicular to the first direction DR1 is, for example, a curved shape that is concave upward. The base member 10 may be formed of a single component, or may be formed by an assembly of multiple components.

[0015] The second member 30 has a second gripping portion 31, and the second gripping portion 31 has a second contact surface 31a that contacts the wire W (more specifically, the lower surface of the wire W). The cross-sectional shape of the second contact surface 31a perpendicular to the first direction DR1 is, for example, a curved shape that is concave downward. The second member 30 may be formed of a single component or an assembly of multiple components.

[0016] The first gripping portion 11 and the second gripping portion 31 grip the wire W by the first contact surface 11a and the second contact surface 31a coming into contact with the wire W. The wire W gripped by the first gripping portion 11 and the second gripping portion 31 is, for example, an electric wire (more specifically, an overhead electric wire).

[0017] The swinging member 40 is rotatably connected to the base member 10 about a first axis AX1. More specifically, the wire gripper 1A includes a first pin member P1 that rotatably connects the swinging member 40 and the base member 10, and the first pin member P1 is disposed along the first axis AX1.

[0018] Furthermore, the swinging member 40 is rotatably connected to the second member 30 about a second axis AX2. More specifically, the wire gripper 1A includes a second pin member P2 that rotatably connects the swinging member 40 and the second member 30, and the second pin member P2 is disposed along the second axis AX2.

[0019] When the oscillating member 40 rotates around the first axis AX1, the second member 30 connected to the oscillating member 40 moves relative to the base member 10, changing the distance between the first contact surface 11a and the second contact surface 31a. Furthermore, when the second contact surface 31a comes into contact with the wire W, the second member 30 rotates around the second axis AX2 relative to the oscillating member 40. Thus, the second contact surface 31a becomes parallel to the first contact surface 11a, and a balanced gripping force acts on the wire W contacting the first contact surface 11a and the second contact surface 31a. The oscillating member 40 may be formed of a single component or an assembly of multiple components. In the example shown in FIG. 1, the oscillating member 40 is a plate-shaped component. The swinging member 40 has a generally triangular shape in a front view, with the first axis AX1, the second axis AX2, and a third axis AX3 (described later) located at each vertex of the triangle. However, the shape and structure of the swinging member 40 are not limited to the example shown in FIG. 1.

[0020] The lever member 50 is rotatably connected to the swing member 40 about a third axis AX3. More specifically, the wire gripper 1A includes a third pin member P3 that rotatably connects the lever member 50 and the swing member 40, and the third pin member P3 is disposed along the third axis AX3.

[0021] As shown in FIG. 1, when the lever member 50 is pulled in a first direction DR1, the swinging member 40 connected to the lever member 50 swings around a first axis AX1. As the swinging member 40 swings, the second contact surface 31a of the second gripping portion 31 moves in a direction approaching the first contact surface 11a of the first gripping portion 11, and as a result, the wire W is gripped by the first gripping portion 11 and the second gripping portion 31. In the example shown in FIG. 1, the second end 50b of the lever member 50 (the end opposite to the first end 50a connected to the swinging member 40) is a free end. This free end is connected, for example, to an extendable rod member 70, which will be described later.

[0022] In addition to the first grip portion 11, the base member 10 includes a guide portion 16, a first engagement portion 21a, and a first operation portion 26a.

[0023] Guide portion 16 guides the movement of lever member 50. In the example shown in Fig. 1, guide portion 16 is provided in the rear portion (portion on the first direction DR1 side) of base member 10. In the example shown in Fig. 1, guide portion 16 extends so as to protrude downward and rearward beyond the rear end of first contact surface 11a (or the rear end of second contact surface 31a).

[0024] 2, the guide portion 16 includes a guide wall Gw that guides the lever member 50. The guide wall Gw is, for example, a wall that defines a through-hole Gh through which an intermediate portion 53 (see FIG. 1) of the lever member 50 is inserted. The guide portion 16 restricts the position of the lever member 50, thereby preventing the lever member 50 from being excessively displaced in the lateral direction (the direction perpendicular to the paper surface in the front view on the left side of FIG. 1), and as a result, prevents an excessive load from acting on the connecting portion between the lever member 50 and the swing member 40.

[0025] The first engagement portion 21a is engageable with the lever member 50 (more specifically, the second engagement portion 51 of the lever member 50). In the example shown in FIG. 1, the base member 10 has a lower end portion 20 below the guide portion 16, and the first engagement portion 21a is provided on the lower end portion 20 so as to be movable relative to the lower end portion 20. In the example shown in FIG. 1, the portion of the first engagement portion 21a that comes into contact with the lever member 50 is formed at an acute angle when viewed in a direction parallel to the third axis AX3.

[0026] The first operating unit 26a moves the first engaging unit 21a from a first state (see FIG. 4(a)) in which the engagement between the first engaging unit 21a and the lever member 50 is released to a second state (see FIG. 4(b)) in which the first engaging unit 21a engages with the lever member 50. In other words, the first operating unit 26a changes the arrangement state of the first engaging unit 21a from the first state to the second state.

[0027] In the first embodiment, by operating the first operating unit 26a, the first state in which the engagement between the first engaging portion 21a and the lever member 50 is released can be forcibly switched to a second state in which the first engaging portion 21a engages with the lever member 50. As shown in FIG. 4(b), when the first engaging portion 21a is engaged with the lever member 50, the lever member 50 is prevented from moving relative to the base member 10 in the first direction DR1. As a result, the distance between the first gripping portion 11 and the second gripping portion 31 is maintained at a predetermined distance. Therefore, in the first embodiment, when the first engaging portion 21a is engaged with the lever member 50 (in other words, when the distance between the first gripping portion 11 and the second gripping portion 31 is maintained at a predetermined distance), the wire W can be placed between the first gripping portion 11 and the second gripping portion 31. This makes it possible to easily attach the wire gripper 1A to the wire W.

[0028] 4(b), as long as the first engaging portion 21a is in the advanced position where it engages with the lever member 50, the engagement between the first engaging portion 21a and the lever member 50 will not be released. Therefore, the operation of attaching the wire gripper 1A to the wire W can be stably performed.

[0029] Next, optional additional configurations that can be employed in the wire gripper 1A of the first embodiment or the wire gripper 1B of the second embodiment described below will be described.

[0030] (First biasing member 91) 5(a), the wire gripper 1A includes a first biasing member 91. The first biasing member 91 biases the swinging member 40 in a first rotational direction R1 about the first axis AX1 so that the gap between the first gripping portion 11 and the second gripping portion 31 decreases.

[0031] When the wire gripping device 1A includes the first biasing member 91, the wire W placed between the first gripping portion 11 and the second gripping portion 31 can be automatically gripped by both gripping portions (11, 31) by utilizing the biasing force of the first biasing member 91. This improves the efficiency of the operation of gripping the wire W by the first gripping portion 11 and the second gripping portion 31.

[0032] More specifically, as shown in FIG. 5(a), when the engagement between the first engagement portion 21a and the lever member 50 is released, the biasing force of the first biasing member 91 causes the swing member 40 to rotate about the first axis AX1 in a first rotational direction R1, and the second gripping portion 31 to move in a direction approaching the first gripping portion 11. As a result, the wire W is automatically gripped by the first gripping portion 11 and the second gripping portion 31 (see FIG. 5(b)). Note that when the swing member 40 rotates about the first axis AX1 in the first rotational direction R1, the lever member 50 moves in the first direction DR1.

[0033] In the example shown in FIG. 5(a), the first biasing member 91 is a torsion coil spring, but the first biasing member 91 may be another type of spring, or may be a magnet or the like.

[0034] (Second biasing member 27) In the example shown in FIG. 4(b), the wire gripper 1A (more specifically, the base member 10) includes a second biasing member 27. The second biasing member 27 biases the first engagement portion 21a in a direction away from the lever member 50. In the example shown in FIG. 4(b), when the operating force acting on the first operating portion 26a is removed, the biasing force of the second biasing member 27 causes the first engagement portion 21a to automatically retreat in a direction away from the lever member 50 (more specifically, the second engagement portion 51) (see FIG. 5(a)).

[0035] 4(b) and 5(a), the wire gripper 1A includes a second biasing member 27, and when the operating force acting on the first operating portion 26a is removed, the biasing force of the second biasing member 27 automatically returns the state of the first engaging portion 21a from the second state (in other words, the state engaged with the lever member 50) to the first state (in other words, the state disengaged from the lever member 50). This eliminates the need for a complex operation to set the disengaged state, and improves the efficiency of the operation of gripping the wire W with the first gripping portion 11 and the second gripping portion 31.

[0036] Furthermore, when the wire gripper 1A is equipped with both the first and second biasing members 91 and 27 described above, the series of operations from disengaging the first engaging portion 21a and the lever member 50 to gripping the wire W by the first gripping portion 11 and the second gripping portion 31 can be automated simply by eliminating the operating force acting on the first operating portion 26a.

[0037] The above-described automation is particularly useful when the first operating unit 26a is operated by the manipulator M. In this case, simply by moving the manipulator M away from the first operating unit 26a, a series of operations from disengaging the first engaging unit 21a and the lever member 50 to gripping the wire W with the first gripping unit 11 and the second gripping unit 31 can be automated. This significantly reduces the workload on the worker.

[0038] In the example shown in FIG. 4(b), the second biasing member 27 is a torsion coil spring, but the second biasing member 27 may be another type of spring (for example, a coil spring), a magnet, or the like.

[0039] (Mechanism for moving the first engagement portion 21a forward and backward) In the example shown in FIG. 3, the wire gripper 1A (more specifically, the base member 10) has an engaging member 21, a second guide portion 22a, and a link mechanism .

[0040] Engagement member 21 has first engagement portion 21a, and is guided by second guide portion 22a so as to be able to advance and retreat (in other words, so as to be able to advance and retreat). The advance direction of engagement member 21 is the direction in which engagement member 21 moves toward lever member 50, and the retreat direction of engagement member 21 is the direction in which engagement member 21 moves away from lever member 50. Engagement member 21 has sliding surface 21b that slides against the guide surface of second guide portion 22a.

[0041] The second guide portion 22a guides the movement of the engaging member 21. The second guide portion 22a has a guide surface that guides the engaging member 21. In the example shown in FIG. 3, the second guide portion 22a is provided on the grip portion 22 of the base member 10. In addition, in the example shown in FIG. 3, the grip portion 22 forms the lower end portion 20 of the base member 10. The grip portion 22 can be grasped by a manipulator M or the like.

[0042] The link mechanism 23 advances and retreats the engaging member 21. In the example shown in Fig. 3, the link mechanism 23 includes a plurality of arms 241 and a plurality of oscillation shafts AT. In the example shown in Fig. 3, the link mechanism 23 includes a first arm 241a, a second arm 241b, a first oscillation shaft AT1, a second oscillation shaft AT2, and a third oscillation shaft AT3, but the number of arms and the number of oscillation shafts are not limited to those shown in Fig. 3.

[0043] 3, a first end of the first arm 241a is coupled to the engagement member 21 so as to be swingable about a first oscillation axis AT1, and a second end of the first arm 241a is coupled to the second arm 241b so as to be swingable about a second oscillation axis AT2. Furthermore, a first end of the second arm 241b is swingably coupled to the first arm 241a, and a second end of the second arm 241b is coupled to the lower end 20 of the base member 10 (more specifically, the grip portion 22) so as to be swingable about a third oscillation axis AT3.

[0044] In the example shown in FIG. 3, first operating portion 26a is configured by exposed portion P of link mechanism 23 that is exposed from second guide portion 22a. More specifically, in the example shown in FIG. 3, the second end portion of first arm 241a and the first end portion of second arm 241b are exposed from second guide portion 22a, and these ends function as first operating portion 26a. Note that in this specification, a member that is attached to any of the multiple arms 24 and functions as first operating portion 26a is also considered to be part of link mechanism 23. For example, if a plate member or the like that functions as first operating portion 26a is attached to the second end portion of first arm 241a or the first end portion of second arm 241b, the plate member is also considered to be part of link mechanism 23.

[0045] In the example shown in FIG. 4(a), when the first operation unit 26a (more specifically, the above-mentioned exposed portion P) is pressed by the manipulator M or the like, the angle between the first arm 241a and the second arm 241b increases against the biasing force of the second biasing member 27, and the engaging member 21 provided at the first end of the first arm 241a advances toward the lever member 50. In this way, the first engaging portion 21a of the engaging member 21 engages with the lever member 50 (see FIG. 4(b)). Also, in the example shown in FIG. 4(b), when the manipulator M or the like moves away from the first operation unit 26a, the angle between the first arm 241a and the second arm 241b decreases due to the biasing force of the second biasing member 27, and the engaging member 21 provided at the first end of the first arm 241a retreats in a direction away from the lever member 50. In this way, the engagement between the first engagement portion 21a of the engagement member 21 and the lever member 50 is released (see FIG. 5(a)).

[0046] (lever member 50) In the example shown in Fig. 3, the lever member 50 includes a second engagement portion 51 that is engageable with the first engagement portion 21a. The second engagement portion 51 is provided on a lower surface 50s of the lever member 50. In addition, in the example shown in Fig. 3, the second engagement portion 51 is configured as a recess 51d that is provided on the lower surface 50s of the lever member 50. In the example shown in Fig. 3, in the second state in which the first engagement portion 21a and the lever member 50 are engaged, the first engagement portion 21a comes into contact with a surface 511d on the second direction DR2 side of the recess 51d.

[0047] (Swing member operating unit 46) 3, the swinging member 40 is provided with a swinging member operating part 46 that rotates the swinging member 40 around the first axis AX1. The swinging member operating part 46 is preferably provided at the lower end of the swinging member 40. The swinging member operating part 46 is formed of, for example, an operating ring.

[0048] 3, when the swinging member operating portion 46 is pulled downward, the swinging member 40 rotates in the second rotation direction R2 (the direction opposite to the first rotation direction R1) against the biasing force of the first biasing member 91. As a result, the gap between the first gripping portion 11 and the second gripping portion 31 increases.

[0049] (First Modification) Next, a first modified example of the first embodiment will be described with reference to Fig. 6. The first modified example is a modified example of the mechanism for advancing and retracting the first engagement portion 21a.

[0050] In the example shown in FIG. 6, the wire gripper 1A (more specifically, the base member 10) has an engaging member 21, a second guide portion 22a, a first operating member 26, and a second biasing member 27.

[0051] The engaging member 21 includes a conversion portion 211 that converts the movement of the first operating member 26 into the forward and backward movement of the engaging member 21. In the example shown in FIG. 6(a), the conversion portion 211 includes a first inclined surface 211a. In other respects, the engaging member 21 in the first modified example is similar to the engaging member 21 illustrated in FIG.

[0052] The second guide portion 22a guides the movement of the engaging member 21. The structure and function of the second guide portion 22a have already been explained, so a repeated explanation of the second guide portion 22a will be omitted.

[0053] 6(a), the pressing portion 26b includes a second inclined surface 261b. When the pressing portion 26b presses the engagement member 21, the engagement member 21 advances in a direction toward the lever member 50.

[0054] The second biasing member 27 biases the first engagement portion 21a in a direction away from the lever member 50. In the example shown in Fig. 6(a), the second biasing member 27 is a coil spring.

[0055] In the example shown in FIG. 6(a), when the first operating portion 26a is pressed by the manipulator M or the like, the first operating member 26 moves, and the pressing portion 26b (more specifically, the second inclined surface 261b) of the first operating member 26 presses the engaging member 21 (more specifically, the first inclined surface 211a). As a result, the engaging member 21 advances toward the lever member 50. In this way, the first engaging portion 21a of the engaging member 21 engages with the lever member 50 (see FIG. 6(b)). Furthermore, when the manipulator M or the like moves away from the first operating portion 26a, the biasing force of the second biasing member 27 causes the engaging member 21 to retreat in a direction away from the lever member 50. In this way, the engagement between the first engaging portion 21a of the engaging member 21 and the lever member 50 is released. When the engaging member 21 retreats in a direction away from the lever member 50, the first inclined surface 211a of the engaging member 21 presses the second inclined surface 261b of the first operating member 26. In this way, the first operating member 26 returns to its original position (in other words, the default position).

[0056] In the first modified example of the first embodiment, an example has been described in which the first inclined surface 211a and the second inclined surface 261b are used as a mechanism for converting the movement of the first operating member 26 into the advancement and retreat of the engaging member 21. Alternatively, a mechanism such as a screw or a gear may be used as the mechanism for converting the movement of the first operating member 26 into the advancement and retreat of the engaging member 21.

[0057] (Second Modification) Next, a second modified example of the first embodiment will be described with reference to Fig. 7. In the second modified example, in addition to the first operating portion 26a, a second operating member 28 is provided on the base member 10. The second operating member 28 moves the first engaging portion 21a from a first state in which the first engaging portion 21a and the lever member 50 are disengaged to a second state in which the first engaging portion 21a is engaged with the lever member 50 (more specifically, the second engaging portion 51).

[0058] The second operating member 28 can maintain the first engagement portion 21a in the advanced position where it engages with the lever member 50, even when there is no operating force acting on the second operating portion 28a of the second operating member 28. When the second operating member 28 is provided in the wire gripper 1A, it is possible to select between a first operation in which the first engagement portion 21a automatically retracts from the lever member 50 when there is no operating force acting on the first operating portion 26a, and a second operation in which the first engagement portion 21a does not automatically retract from the lever member 50, even when there is no operating force acting on the second operating portion 28a. For example, the first operation may be selected when the wire gripper 1A is attached to the wire W using the manipulator M, and the second operation may be selected when the worker is attaching the wire gripper 1A to the wire W using a remote-controlled tool.

[0059] The second operating member 28 includes a second operating part 28a and a threaded rod 28b. In the example shown in Fig. 7, the second operating part 28a is configured as an operating ring that can engage with a remote control member. The threaded rod 28b is threadedly engaged with the lower end part 20 of the base member 10 (more specifically, the grip part 22).

[0060] In the example shown in Fig. 7(a), when second operating portion 28a is rotated in the first operating direction, threaded rod 28b advances in a direction from the base end of threaded rod 28b toward the tip of threaded rod 28b. As a result, engaging member 21 advances toward lever member 50 together with threaded rod 28b, and first engaging portion 21a of engaging member 21 engages with lever member 50 (more specifically, second engaging portion 51) (see Fig. 7(b)). Note that in the example shown in Fig. 7(b), even when the operating force acting on first operating portion 26a and second operating portion 28a is removed, the engaged state between first engaging portion 21a and lever member 50 is maintained.

[0061] 7(b), when second operating portion 28a is rotated in the second operating direction, threaded rod 28b retreats in a direction from the tip of threaded rod 28b toward the base end of threaded rod 28b. As a result, engaging member 21 retreats in a direction away from lever member 50 due to the biasing force of second biasing member 27, and engagement between first engaging portion 21a of engaging member 21 and lever member 50 (more specifically, second engaging portion 51) is released.

[0062] It should be noted that second operating member 28, which maintains first engaging portion 21a in the advanced position where it engages with lever member 50, is not limited to the example having threaded rod 28b. For example, in the example shown in Fig. 3, when second operating member 28 is added to wire gripper 1A, second operating member 28 may include a swinging member or a sliding member that switches between a state in which it presses first operating portion 26a of link mechanism 23 and a state in which it releases the pressure on first operating portion 26a.

[0063] (Third Modification) Next, a third modified example of the first embodiment will be described with reference to Fig. 8. In the third modified example, a third engagement portion 57 separate from the second engagement portion 51 is provided on the lever member 50. In the example shown in Fig. 8, the first engagement portion 21a can selectively engage with the second engagement portion 51 or the third engagement portion 57.

[0064] As shown in FIG. 8(a), assume that the wire gripper 1A is gripping a wire W. In this state, a pulling force in the first direction DR1 normally acts on the lever member 50. This pulling force causes the wire W to be tightly gripped by the first gripping portion 11 and the second gripping portion 31. Therefore, in the state shown in FIG. 8(a), the wire gripper 1A normally does not fall off the wire W or move relative to the wire W. However, if an unexpected load, such as a strong wind, acts on the wire gripper 1A or the wire W, the above-mentioned pulling force may decrease, weakening the gripping force of the wire gripper 1A on the wire W. Therefore, in the example shown in FIG. 8(a), the lever member 50 is provided with a third engagement portion 57 separate from the second engagement portion 51.

[0065] 8(b), it is assumed that the first engagement portion 21a and the third engagement portion 57 are engaged with each other. In this case, the lever member 50 is prevented from moving in the second direction DR2 relative to the base member 10. Therefore, even if the pulling force acting on the lever member 50 in the first direction DR1 decreases, the gripping force of the wire gripper 1A on the wire W is prevented or suppressed from weakening.

[0066] In the third modified example of the first embodiment, when the first engagement portion 21a and the third engagement portion 57 are engaged with each other, movement of the lever member 50 in the second direction DR2 is restricted. Also, in the third modified example, when the first engagement portion 21a and the second engagement portion 51 are engaged with each other, movement of the lever member 50 in the first direction DR1 is restricted.

[0067] (Second embodiment) A wire gripper 1B according to a second embodiment will be described with reference to Figures 9 and 10. Figure 9 is a schematic front view showing the wire gripper 1B according to the second embodiment. Figure 10 is a schematic front view showing the wire gripper 1B according to a first modified example of the second embodiment. In Figures 9 and 10, a cross-sectional view of the lower end 20 of the base member 10 is shown to make it easier to understand the internal structure of the lower end 20.

[0068] In the second embodiment, differences from the first embodiment will be mainly described, and a repetitive description of matters already described in the first embodiment will be omitted. Therefore, it goes without saying that matters already described in the first embodiment can be adopted in the second embodiment even if they are not explicitly described in the second embodiment.

[0069] 9, the wire gripper 1B in the second embodiment includes: (1) a base member 10 having a first gripping portion 11 that contacts the wire; (2) a second member 30 having a second gripping portion 31 that contacts the wire; (3) a swinging member 40 that is rotatably connected to the base member 10 about a first axis AX1 and to the second member 30 about a second axis AX2; and (4) a lever member 50 that is rotatably connected to the swinging member 40 about a third axis AX3. (5) The base member 10 includes a guide portion 16 that guides the movement of the lever member 50, a first engagement portion 21a that can engage with the lever member 50, and a first operating portion 26a. (6) The first operating portion 26a moves the first engaging portion 21a from a first state in which the engagement between the first engaging portion 21a and the lever member 50 is released to a second state in which the first engaging portion 21a engages with the lever member 50.

[0070] Therefore, the second embodiment has the same effects as the first embodiment.

[0071] 9, the wire gripper 1B (more specifically, the base member 10) has a threaded rod 26c that converts an operating force acting on the first operating portion 26a into movement of the first engaging portion 21a. The threaded rod 26c is threadedly engaged with the lower end portion 20 of the base member 10.

[0072] 9, first operating portion 26a and threaded rod 26c each constitute at least a part of first operating member 26. In other words, first operating member 26 includes first operating portion 26a and threaded rod 26c. In the example shown in FIG. 9, first operating portion 26a is connected to threaded rod 26c, and threaded rod 26c is connected to engagement member 21.

[0073] In the example shown in FIG. 9, the first operating unit 26a is configured as an operating ring that can engage with a remote control member. In the example shown in FIG. 9(a), when the first operating unit 26a is rotated in a first operating direction, the threaded rod 26c advances in a direction from the base end of the threaded rod 26c toward the tip end of the threaded rod 26c. As a result, the engaging member 21 advances together with the threaded rod 26c toward the lever member 50, and the first engaging portion 21a of the engaging member 21 engages with the lever member 50 (more specifically, the second engaging portion 51) (see FIG. 9(b)). In the example shown in FIG. 9(b), even when the operating force acting on the first operating unit 26a is removed, the engaged state between the first engaging portion 21a and the lever member 50 is maintained.

[0074] 9(b), when first operating portion 26a is rotated in the second operating direction, threaded rod 26c retracts together with engaging member 21 in a direction away from lever member 50. As a result, engagement between first engaging portion 21a of engaging member 21 and lever member 50 (more specifically, second engaging portion 51) is released.

[0075] 9, even when the operating force acting on the first operating portion 26a is removed, the engagement state between the first engaging portion 21a and the lever member 50 is maintained. Therefore, when an operator attaches the wire gripper 1B to the wire W using a remote-controlled tool, the operator can perform the operation stably.

[0076] (First Modification) Next, a first modified example of the second embodiment will be described with reference to Fig. 10. In the first modified example, a third engagement portion 57 separate from the second engagement portion 51 is provided on the lever member 50. In the example shown in Fig. 10, the first engagement portion 21a can selectively engage with the second engagement portion 51 or the third engagement portion 57.

[0077] The shapes and functions of the second engagement portion 51 and the third engagement portion 57 have already been described in the first embodiment, so repeated description of the shapes and functions of the second engagement portion 51 and the third engagement portion 57 will be omitted.

[0078] (Third embodiment) A wire slicing tool 100 according to the third embodiment will be described with reference to Fig. 11. Fig. 11 is a schematic front view showing the wire slicing tool 100 according to the third embodiment.

[0079] The wire cutting tool 100 according to the third embodiment includes a wire gripper 1, a second wire gripper 2, and an extendable rod member .

[0080] As the wire gripper 1 of the wire slicing tool 100 in the third embodiment, the wire gripper 1A in the first embodiment or the wire gripper 1B in the second embodiment may be employed.

[0081] The wire gripper 1 is a tool that grips a first portion of the wire W. The wire gripper 1 has already been described in the first embodiment or the second embodiment, so a repeated description of the wire gripper 1 will be omitted.

[0082] As the second wire gripper 2 of the wire cutting tool 100 in the third embodiment, the wire gripper 1A in the first embodiment may be adopted, the wire gripper 1B in the second embodiment may be adopted, or another wire gripper may be adopted.

[0083] The second wire gripper 2 is a tool that grips a second portion of the wire W, which is different from the first portion. In the example shown in Fig. 11, the second wire gripper 2 includes a base member 10 (in other words, a first member), a second member 30, a swing member 40, and a lever member 50. The second wire gripper 2 may include a first engagement portion 21a and a first operating portion 26a.

[0084] The base member 10, the second member 30, the swinging member 40, the lever member 50, the first engagement portion 21a, and the first operating portion 26a have already been described in the first or second embodiment, so repeated explanations of these configurations will be omitted.

[0085] 11, the extendable rod member 70 is connected to the wire gripper 1 (more specifically, the second end 50b of the lever member 50 of the wire gripper 1). The extendable rod member 70 is also connected to the second wire gripper 2 (more specifically, the second end 50b of the lever member 50 of the second wire gripper 2).

[0086] The extendable rod member 70 is a member for changing the distance between the wire gripper 1 and the second wire gripper 2. In the example shown in FIG. 11 , a first end 70a of the rod member 70 is connected to the wire gripper 1, and a second end 70b of the rod member 70 is connected to the second wire gripper 2.

[0087] When the rod member 70 is contracted in the direction along the longitudinal axis L1 of the rod member with the wire gripper 1 gripping a first portion of the wire W and the second wire gripper 2 gripping a second portion of the wire W, the distance between the wire gripper 1 and the second wire gripper 2 is reduced. As a result, the portion of the wire W located between the wire gripper 1 and the second wire gripper 2 is relaxed.

[0088] The rod member 70 includes an outer member 71, an inner member 72, and an operating unit 73. The operating unit 73 is a part for operating the relative movement of the inner member 72 with respect to the outer member 71. The operating unit 73 is connected to the rod member 70 and is rotatable around a fourth axis AX4. The operating unit 73 includes an engaging portion 730 that engages with the distal end of the remote control member.

[0089] An example of a mechanism for contracting the extendable rod member 70 using a remote control will be described. As an example, assume that (A) the operating unit 73 is provided with a first bevel gear that rotates together with the operating unit about the fourth axis AX4, (B) the outer member 71 is provided with a second bevel gear connected to the first bevel gear so as to be able to transmit a load, (C) the second bevel gear rotates together with a threaded rod having an external thread disposed on its outer periphery about the longitudinal axis L1 of the rod member 70, and (D) the inner member 72 is screwed onto the threaded rod. In this case, when the operating unit 73 is rotated about the fourth axis AX4 using the remote control, the first bevel gear rotates about the fourth axis AX4, and the second bevel gear rotates about the longitudinal axis L1 of the rod member 70. When the second bevel gear rotates about the longitudinal axis L1, the threaded rod rotates about the longitudinal axis L1. When the threaded rod rotates around the longitudinal axis L1, the inner member 72 that is threadedly engaged with the threaded rod moves in a direction in which it is drawn into the outer member 71. In this way, the rod member 70 contracts.

[0090] In the third embodiment, the mechanism for contracting the rod member 70 is not limited to the mechanism described above.

[0091] By contracting the rod member 70, the wire W (a portion of the wire W) located between the wire gripper 1 and the second wire gripper 2 is loosened, and then a wire cutting operation and a wire sorting operation are performed. First, the loosened portion of the wire W is cut with a cutting tool. As a result, a first cut end and a second cut end are formed on the wire W. Next, the first cut end and the second cut end are sorted (for example, sorted in the vertical direction). The wire cutting operation is completed by the above steps (more specifically, a step of contracting the rod member 70 while the wire gripper 1 grips the first portion of the wire W and the second wire gripper 2 grips the second portion of the wire W, a step of cutting the loosened portion of the wire W formed by the contraction of the rod member 70 with a cutting tool, and a step of sorting the first cut end and the second cut end formed by the cutting).

[0092] From the viewpoint of efficiently performing the task of separating the first cut end portion and the second cut end portion, the wire cutting tool 100 may include at least one wire supporting tool 80.

[0093] The wire support 80 is a member that supports the wire W in the region between the wire gripper 1 and the second wire gripper 2. In the example shown in Fig. 11, the wire cutting tool 100 includes a first wire support 80a and a second wire support 80b.

[0094] 11 , the base member 10 (more specifically, the grip portion 22) of the wire gripper 1 may be grasped by the first manipulator M1, and the base member 10 (more specifically, the grip portion 22) of the second wire gripper 2 may be grasped by the second manipulator M2. Alternatively, the first operating portion 26a of the wire gripper 1 may be manipulated by the first manipulator M1, and the first operating portion 26a of the second wire gripper 2 may be manipulated by the second manipulator M2, thereby maintaining the engagement between the first engaging portion 21a of the wire gripper 1 and the lever member 50 of the wire gripper 1, and maintaining the engagement between the first engaging portion 21a of the second wire gripper 2 and the lever member 50 of the second wire gripper 2. Furthermore, when the first manipulator M1 moves away from the first operating portion 26a of the wire gripper 1, the engagement between the first engagement portion 21a of the wire gripper 1 and the lever member 50 of the wire gripper 1 is automatically released, and when the second manipulator M2 moves away from the first operating portion 26a of the second wire gripper 2, the engagement between the first engagement portion 21a of the second wire gripper 2 and the lever member 50 of the second wire gripper 2 is automatically released.

[0095] (How to use the wire gripper) Next, a method of using the wire gripper 1 in the embodiment will be described with reference to Figures 1 to 12. Figure 12 is a flowchart showing an example of a method of using the wire gripper 1 in the embodiment.

[0096] The method of using the wire gripper 1 in the embodiment is the same as the method of using the wire gripper 1A in the first embodiment or the wire gripper 1B in the second embodiment.

[0097] In the first step ST1, the swing member 40 is rotated about the first axis AX1 in the second rotation direction R2. The first step ST1 is a swing member rotating step.

[0098] 1, the first step ST1 (swing member rotating process) is performed by operating the swing member operating part 46. More specifically, when the swing member operating part 46 is pulled downward, the swing member 40 rotates in the second rotation direction R2 about the first axis AX1. Alternatively, the first step ST1 (swing member rotating process) may be performed by moving the lever member 50 in the second direction DR2.

[0099] In first step ST1 (swing member rotating step), when the swing member 40 rotates about the first axis AX1 in the second rotation direction R2, the gap between the first grip portion 11 and the second grip portion 31 increases. Furthermore, when the swing member 40 rotates about the first axis AX1 in the second rotation direction R2, the lever member 50 moves relative to the base member 10 in the second direction DR2. Figure 4(a) shows the state after first step ST1 has been performed.

[0100] In the second step ST2, the first engagement portion 21a is engaged with the lever member 50 (more specifically, the second engagement portion 51). The second step ST2 is an engagement step.

[0101] The second step ST2 (engagement step) includes moving the first engagement portion 21a toward the lever member 50 (more specifically, the second engagement portion 51) by operating the first operation portion 26a with the manipulator M or an arbitrary tool. This movement causes the first engagement portion 21a to engage with the lever member 50 (more specifically, the second engagement portion 51).

[0102] As illustrated in FIG. 4(a), the second step ST2 may include increasing the angle between the first arm 241a and the second arm 241b by operating the first operating unit 26a with a manipulator M or an arbitrary tool. Alternatively, as illustrated in FIGS. 6(a) and 6(b), the second step ST2 may include operating the first operating unit 26a with a manipulator M or an arbitrary tool, so that the first operating member 26 on which the first operating unit 26a is arranged presses the engaging member 21 on which the first engaging unit 21a is arranged. Still alternatively, as illustrated in FIGS. 9(a) and 9(b), the second step ST2 may include operating the first operating unit 26a with a manipulator M or an arbitrary tool, so that the threaded rod 26c moves together with the engaging member 21 toward the lever member 50.

[0103] 6(b) and 9(b) show the state after the second step ST2 has been executed.

[0104] In the third step ST3, the wire W is placed between the first gripping portion 11 and the second gripping portion 31 of the wire gripping device 1. The third step ST3 is a placement step.

[0105] The third step ST3 (placement step) includes lifting the wire gripper 1 toward the wire W using the manipulator M or a remote-controlled tool.

[0106] The third step ST3 (arrangement step) is performed in a state where the first engagement portion 21a and the lever member 50 (more specifically, the second engagement portion 51) are engaged with each other, in other words, in a state where a predetermined distance is maintained between the first gripping portion 11 and the second gripping portion 31. The third step ST3 (arrangement step) may be performed in a state where the first operating portion 26a is pressed by the manipulator M, as illustrated in FIG. 4(b). In the example shown in FIG. 4(b), the third step ST3 is performed in a state where the manipulator M is gripping the first operating portion 26a and the grip portion 22.

[0107] In the fourth step ST4, the engagement between the first engagement portion 21a and the lever member 50 (more specifically, the second engagement portion 51) is released. The fourth step ST4 is a disengagement step.

[0108] The fourth step ST4 (disengagement step) may be automatically executed when the operating force acting on the first operating unit 26a is removed. More specifically, the fourth step ST4 (disengagement step) may be automatically executed when the manipulator M moves away from the first operating unit 26a. In the example shown in FIG. 5(a), when the manipulator M moves away from the first operating unit 26a, the biasing force of the second biasing member 27 automatically causes the first engagement portion 21a to retreat in a direction away from the lever member 50 (more specifically, the second engagement portion 51). In this way, the engagement between the first engagement portion 21a and the lever member 50 (more specifically, the second engagement portion 51) is released.

[0109] Alternatively, the fourth step ST4 (disengagement step) may include operating the first operating part 26a with a remote-controlled tool. For example, in the example shown in FIG. 9(b), when the first operating part 26a is rotated in the second operating direction by the remote-controlled tool, the threaded rod 26c moves together with the first engaging part 21a in a direction away from the lever member 50 (more specifically, the second engaging part 51). In this way, the engagement between the first engaging part 21a and the lever member 50 (more specifically, the second engaging part 51) is released.

[0110] In the fifth step ST5, the wire W is gripped by the first gripping part 11 and the second gripping part 31. The fifth step ST5 is a wire gripping step.

[0111] The fifth step ST5 (wire gripping process) is executed by rotating the swingable member 40 in the first rotation direction R1 about the first axis AX1. By rotating the swingable member 40 in the first rotation direction R1 about the first axis AX1, the distance between the first gripping portion 11 and the second gripping portion 31 is reduced, and the wire W is gripped by the first gripping portion 11 and the second gripping portion 31.

[0112] 5(b), the fifth step ST5 (wire rod gripping step) may include rotating the swinging member 40 about the first axis AX1 in the first rotational direction R1 by the biasing force of the first biasing member 91. Alternatively, or additionally, the fifth step ST5 (wire rod gripping step) may include the lever member 50 pulling the swinging member 40 in the first direction DR1.

[0113] In the method of using the wire gripper 1 in the embodiment, the third step ST3 (placement step) is performed in a state where a predetermined distance is maintained between the first gripping portion 11 and the second gripping portion 31. Therefore, the work of attaching the wire gripper 1A to the wire W can be easily performed.

[0114] The present invention is not limited to the above-described embodiments, and it is clear that each embodiment or each modification can be appropriately modified or changed within the scope of the technical concept of the present invention. Furthermore, any component used in each embodiment or each modification can be combined with other embodiments or other modifications, and any component can be omitted from each embodiment or each modification. [Industrial Applicability]

[0115] The wire gripper, wire cutting tool, and method of using the wire gripper of the present invention make it possible to maintain a predetermined distance between the first gripping portion and the second gripping portion of the wire gripper. This makes it easy to attach the wire gripper to a wire. Therefore, the present invention is useful for businesses that attach wire grippers or wire cutting tools to wires, and for manufacturers that manufacture wire grippers or wire cutting tools. [Explanation of symbols]

[0116] 1, 1A, 1B...wire gripper, 2...second wire gripper, 10...base member, 11...first gripping portion, 11a...first contact surface, 16...guide portion, 20...lower end portion, 21...engaging member, 21a...first engaging portion, 21b...sliding surface, 22...grip portion, 22a...second guide portion, 23...link mechanism, 24...arm, 26...first operating member, 26a...first operating portion, 26 b...pressure portion, 26c...threaded rod, 27...second biasing member, 28...second operating member, 28a...second operating portion, 28b...threaded rod, 30...second member, 31...second gripping portion, 31a...second contact surface, 40...swinging member, 46...swinging member operating portion, 50...lever member, 50a...first end portion, 50b...second end portion, 50s...lower surface, 51...second engaging portion, 51d...recessed portion, 53...intermediate portion, 57...third engagement portion, 70...rod member, 70a...first end portion, 70b...second end portion, 71...outer member, 72...inner member, 73...operation portion, 80...wire rod support tool, 80a...first wire rod support tool, 80b...second wire rod support tool, 91...first biasing member, 100...wire rod cutting tool, 211...conversion portion, 211a...first inclined surface, 241...arm, 241a...first arm, 241b...second arm, 261b...second inclined surface, 511d...surface on the second direction side, 730...engagement portion, Gh...through hole, Gw...guide wall, M...manipulator, M1...first manipulator, M2...second manipulator, P...exposed portion, P1...first pin member, P2...second pin member, P3...third pin member, W...wire rod

Claims

1. a base member having a first gripping portion that contacts the wire; a second member including a second gripping portion that contacts the wire; a swinging member connected to the base member so as to be rotatable about a first axis and connected to the second member so as to be rotatable about a second axis; a lever member connected to the swing member so as to be rotatable about a third axis; Equipped with The base member is a guide portion that guides the movement of the lever member; a first engagement portion engageable with the lever member; a first operating portion that moves the first engaging portion from a first state in which the first engaging portion and the lever member are disengaged to a second state in which the first engaging portion is engaged with the lever member; a lower end portion below the guide portion; Equipped with The first operating portion is formed at the lower end portion. wire grabber.

2. The gripping mechanism further includes a first biasing member that biases the swinging member in a first rotation direction around the first axis so that the gap between the first gripping portion and the second gripping portion decreases. The wire gripper according to claim 1.

3. A base member having a first gripping portion that contacts the wire; a second member including a second gripping portion that contacts the wire; a swinging member connected to the base member so as to be rotatable about a first axis and connected to the second member so as to be rotatable about a second axis; a lever member connected to the swing member so as to be rotatable about a third axis; Equipped with The base member is a guide portion that guides the movement of the lever member; a first engagement portion engageable with the lever member; a first operating portion that moves the first engaging portion from a first state in which the first engaging portion and the lever member are disengaged to a second state in which the first engaging portion is engaged with the lever member; Equipped with a first biasing member that biases the swinging member in a first rotation direction about the first axis so that a gap between the first gripping portion and the second gripping portion decreases; and a second biasing member that biases the first engagement portion in a direction away from the lever member; When the operating force acting on the first operating portion is removed, the first engaging portion automatically retreats in a direction away from the lever member due to the biasing force of the second biasing member. wire grabber.

4. an engaging member having the first engaging portion; a second guide portion that guides the movement of the engaging member; a link mechanism for moving the engaging member forward and backward; Further comprising: the link mechanism includes a plurality of arms and a plurality of swing shafts, The first operating portion is configured by a portion of the link mechanism that is exposed from the second guide portion. The wire gripper according to claim 3.

5. a second operating member that moves the first engaging portion from a first state in which the first engaging portion and the lever member are disengaged to a second state in which the first engaging portion is engaged with the lever member, The second operating member can maintain the first engagement portion at an advanced position where the first engagement portion engages with the lever member even when an operating force acting on a second operating portion of the second operating member is removed. The wire gripper according to claim 3 or 4.

6. The lever member is a second engaging portion engageable with the first engaging portion; a third engaging portion that is engageable with the first engaging portion and is separate from the second engaging portion; Equipped with The wire gripper according to any one of claims 1 to 5.

7. The device further includes a threaded rod that converts an operating force acting on the first operating portion into movement of the first engaging portion. The wire gripper according to any one of claims 1 to 6.

8. The wire gripper according to any one of claims 1 to 7; an extendable rod member connected to the wire gripper; a second wire gripper connected to the rod member; Equipped with Wire cutting tool.

9. A method of using the wire gripper according to any one of claims 1 to 7, comprising: an engaging step of engaging the first engaging portion with the lever member by operating the first operating portion; an arrangement step of arranging the wire between the first gripping portion and the second gripping portion in a state in which the first engagement portion and the lever member are engaged with each other; a disengagement step of disengaging the first engagement portion and the lever member; a wire rod holding step of holding the wire rod by the first holding portion and the second holding portion by rotating the swinging member around the first axis; Equipped with How to use the wire gripper.

10. The disengagement step is automatically performed when the operating force acting on the first operating portion is removed. A method for using the wire gripper according to claim 9.

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