JP5795249B2 - Indirect hot wire gripping tool - Google Patents

Description

  The present invention relates to a structure of a gripping tool for an indirect hot wire that can grip a gripping target object such as an electric wire charged in indirect hot wire construction regardless of the size of the outer diameter of the gripping target object.

  In recent years, in order to avoid power outages around the work site, indirect hot-line construction has been adopted in which workers work away from the charging section while charging the high-voltage distribution line. In such indirect hot wire construction, as shown in, for example, Patent Literature 1 and Patent Literature 2, an indirect hot wire gripping tool, which is also called an insulating Yatco or the like, for safely gripping a gripping object such as a high-voltage electric wire. Is used. On the other hand, in the indirect hot wire construction, the gripping object to be gripped by the indirect live wire gripping tool has various outer diameter dimensions.

  Accordingly, in the indirect hot wire gripping tool shown in Patent Document 1, both the large-diameter object to be gripped and the small-diameter object to be gripped are connected to the arc-shaped portion of the fixed grip piece and the arc-shaped portion of the movable grip piece. It is possible to change the inclination angle of the fixed grip piece with respect to the axis of the shaft rod to which these grip pieces are attached by the screw mechanism. It is possible to adjust the maximum opening degree between.

  Further, in the indirect live-line gripping tool disclosed in Patent Document 2, the gripping piece of the radio pliers-like tool is opened and closed so that the gripping object can be gripped even if it is a small object such as a split pin. A fixing portion is provided on one grip portion of the pair of grip portions for fixing, and the fixing portion is fixed to the fixed gripping piece of the insulating jar, and the insulating jar is provided outside the other grip portion of the radio pliers-like tool grip portion. It is possible to adjust the opening degree of the two holding pieces of the radio pliers-like tool by moving the movable holding piece of the insulating jacket in contact with the inside of the movable holding piece.

JP-A-10-264056 JP 2010-178462 A

  However, in the indirect hot wire gripping tool disclosed in Patent Document 1, the outer diameter of the gripping object is smaller than the minimum dimension between the arcuate portions when the fixed gripping piece and the movable gripping piece are closed. In this case, it is necessary to grip the object to be gripped by the linear portion on the distal end side with respect to the arc-shaped portion of the fixed gripping piece and the linear portion on the distal end side with respect to the arc-shaped portion of the movable gripping piece.

  For this reason, it is necessary to grip a small-diameter electric wire charged as an object to be grasped by the linear portion of the fixed grip piece and the linear portion of the movable grip piece. The fixed grip piece may fall into a space defined by the arc-shaped portion of the fixed grip piece and the arc-shaped portion of the movable grip piece. At this time, it is necessary to have another worker once hold the electric wire with another indirect live wire holding tool, and perform the operation of opening and closing the indirect hot wire holding tool during that time to re-hold the electric wire. Therefore, there is a disadvantage that the entire indirect hot-line operation becomes complicated.

  In addition, when the object to be grasped is gripped by the linear portion of the fixed gripping piece and the linear portion of the movable gripping piece, the gripping object may slide toward the tip side from these linear portions. In this case, there is a possibility that a problem that the object to be grasped falls occurs. In the case where the object to be grasped is the above-described charged electric wire, there is a possibility that an electric shock accident or a ground fault may occur due to dropping, so that the danger in the indirect hot-line operation is further increased.

  In this regard, the indirect live-line gripping tool disclosed in Patent Document 2 additionally includes a radio pliers-like tool that can be gripped even if the gripping target has a relatively small diameter. However, there is a problem that the number of parts greatly increases due to this additional tool, and it becomes impossible to directly grasp the object to be grasped by the fixed grasping piece and the movable grasping piece of the indirect live line grasping tool. A new problem arises.

  In view of this, the present invention reliably grips the arc-shaped portion of the fixed grip piece and the arc-shaped portion of the movable grip piece without increasing the number of parts even when the outer diameter of the gripping object is relatively small. An object of the present invention is to provide an indirect live-line gripping tool that can be used.

  The indirect live wire gripping tool according to the present invention has a linearly extending rod-shaped member and a gripping portion provided at one end in the longitudinal direction of the rod-shaped member, and the gripping portion is a fixed gripping piece and a movable gripping. A gripping tool for indirect live lines, which is configured to be capable of gripping a gripping object disposed between these gripping pieces by moving the movable gripping piece closer to the fixed gripping piece, The fixed grip piece and the movable grip piece each include an arc-shaped portion formed on the rod-shaped member side, and a linear portion extending from the arc-shaped portion to the side opposite to the rod-shaped member. All or a part of the arc-shaped portion can be rotated, and the curvature of the bulging side surface of the arc-shaped portion of the movable gripping piece matches the curvature of the warped side surface of the arc-shaped portion of the fixed gripping piece. (Claim 1). The gripping object refers to, for example, a charged electric wire. When rotating all or part of the arcuate portion, the rotation direction may be either clockwise or counterclockwise. The rotation range is 180 degrees or more. The linear part of the fixed gripping piece and the linear part of the movable gripping piece are contacted when the fixed gripping piece and the movable gripping piece are closed regardless of whether all or part of the arcuate part of the movable gripping piece is rotated. It comes to touch. The rod-shaped portion is made of an insulating material. The bulging side surface of the arc-shaped portion is a convex side surface formed in the convex shape of the arc-shaped portion, and the warped side surface of the arc-shaped portion is the concave side surface formed in the concave shape of the arc-shaped portion.

  More specifically, the gripping tool for indirect live wire according to the present invention is a base portion that is a rotation source and a rotation side as a rotation mechanism for reversing all or part of the arc-shaped portion of the movable gripping piece. The rotating portion is connected by an expansion / contraction rotating member, and at least one side of the base portion and the rotating portion has a restricting means for restricting the rotation of the rotating portion (Claim 2). Examples of the telescopic rotating member include a coil spring.

  Thus, in the case of a gripping object having an outer diameter that can be gripped by the warped side surface of the arc-shaped portion of the fixed grip piece and the warped side surface of the arc-shaped portion of the movable grip piece, the warped side surface of the arc-shaped portion of the movable grip piece. The outer diameter dimension of the object to be grasped is the warp side of the arcuate part of the fixed gripping piece and the warp side of the arcuate part of the movable gripping piece. If it is smaller than the minimum dimension, rotate all or part of the arcuate portion of the movable gripping piece 180 degrees so that the bulging side of the arcuate portion of the movable gripping piece faces the warped side of the arcuate portion of the fixed gripping piece. In this state, by moving the movable gripping piece in a direction closer to the fixed gripping piece, the bulging side surface of the arcuate portion of the movable gripping piece and the warped side surface of the arcuate portion of the fixed gripping piece can be brought into contact with each other. Arc part of movable gripping piece Bulge by disposing between the warp side surface of the arcuate portion of the side surface and the fixed gripping piece, it is possible to how even relatively small diameter gripping target is gripped in.

In the indirect hot wire gripping tool according to the present invention, the movable gripping piece is provided with a slip stopper on the bulging side surface of the arc-shaped portion, and the fixed gripping piece is provided with a slip stopper on the warped side surface of the arc-shaped portion. (Claim 3). The movable gripping piece may be provided with a slip stopper only on the bulging side surface of the arc-shaped portion, or may be provided with a slip stopper on both the bulging side surface and the warping side surface of the arc-shaped portion. The non-slip is formed by arranging a plurality of triangular or quadrangular protrusions, for example. This makes it possible to more reliably grip the gripping object when gripping the gripping object between the curved side surface of the arc-shaped portion of the fixed gripping piece and the bulging side surface of the arc-shaped portion of the movable gripping piece.

  Furthermore, in the indirect hot wire gripping tool according to the present invention, the movable gripping piece includes a side surface on the same side as a warped side surface of the arc-shaped portion of the linear portion, and the arc-shaped portion of the linear portion. A hole is provided in the side surface on the same side as the bulging side surface of the part (Claim 4). The fixed grip piece may be provided with a hole only on the side surface on the same side as the bulging side surface of the arc-shaped portion of the linear portion. As a result, when the tool is mounted on the linear portions of both gripping pieces of the indirect live wire gripping tool via the adapter, the arc-shaped portion of the movable gripping piece is reversed, and thus the linear portion is also reversed. Alternatively, the fixing portion of the adapter can be inserted into the hole portion of the linear portion and attached to the movable gripping piece.

As described above, according to the first to fourth aspects of the invention, the outer diameter of the fixed grip piece can be gripped by the warped side surface of the arc-shaped portion of the fixed grip piece and the warped side surface of the arc-shaped portion of the movable grip piece. In the case of an object to be grasped, the warp side surface of the arc-shaped portion of the movable grip piece can be used as a normal indirect live gripping tool while the warp side surface of the arc-shaped portion of the movable grip piece is kept facing.
On the other hand, when the gripping object cannot be gripped by the warped side surface of the arc-shaped portion of the fixed gripping piece and the warped side surface of the arc-shaped portion of the movable gripping piece, Rotate all or part 180 degrees so that the bulging side surface of the arc-shaped portion of the movable gripping piece faces the warped side surface of the arc-shaped portion of the fixed gripping piece, and in this state, move the movable gripping piece toward and away from the fixed gripping piece. Move it. As a result, a relatively small-diameter gripping object can be securely sandwiched and gripped between the warped side surface of the arc-shaped portion of the fixed gripping piece and the bulging side surface of the arc-shaped portion of the movable gripping piece. Without increasing, even if the outer diameter of the object to be grasped varies, it can be handled with one indirect live wire grasping tool.
In addition, since the gripping object having a small diameter is prevented from being gripped by the linear portion, the gripping object is not dropped from the indirect live wire gripping tool.
Also, when gripping a small-diameter gripping object, no gap is formed between the arc-shaped portion of the fixed gripping piece and the arc-shaped portion of the movable gripping piece, so the arc-shaped portion of the constant gripping piece and the arc-shaped portion of the movable gripping piece Therefore, it is possible to smoothly carry out the indirect hot-line construction as a whole because the object to be gripped does not enter and ask for the support of other workers.

  In particular, according to the invention described in claim 3, when the object to be gripped is gripped by the warped side surface of the arc-shaped portion of the fixed grip piece and the bulging side surface of the arc-shaped portion of the movable grip piece, the warp of the arc-shaped portion of the fixed grip piece. Since both the side surface and the bulging side surface of the arc-shaped portion of the movable gripping piece have the slip stopper, the gripping object can be gripped more reliably.

  In particular, according to the invention described in claim 4, the arc-shaped portion of the movable gripping piece is reversed when the tool is attached to the linear portions of both gripping pieces of the indirect live-line gripping tool via the adapter. Therefore, even if the linear portion is also reversed, the adapter fixing portion can be inserted into the hole of the linear portion and attached to the movable gripping piece.

FIG. 1 is an explanatory view showing an example of the overall configuration of an insulating Yatco that is a gripping tool for indirect live wires in which the present invention is used. FIG. 2 is an enlarged view of a main part showing the configuration of the distal end side of the above-described insulating jacket, FIG. 2 (a) shows a normal state of the insulating jacket, and FIG. 2 (b) is an arc shape of the movable gripping piece of the insulating jacket. A state where the portion is inverted 180 degrees is shown. FIG. 3 is an explanatory view showing a structure for reversing the arc-shaped portion of the movable gripping piece of the insulating jacket, and FIG. 3 (a) shows the configuration of the rotation mechanism provided at the base portion and the rotation portion of the arc-shaped portion. 3B shows the configuration of the rotation mechanism in a state where the end surface of the base portion is viewed, and FIG. 3C shows the configuration of the rotation mechanism in a state where the end surface of the rotation portion is viewed. FIG. 4 is an explanatory view showing a process of changing the arcuate portion of the movable gripping piece of the insulating yat from the normal state of the insulating yatco to 180 degrees, and FIG. 4 (a) shows the arcuate portion of the movable gripping piece as its axis. 4 (b) shows the step of rotating 180 degrees while pulling the arc-shaped portion of the movable gripping piece, and FIG. 4 (c) shows the step of restoring the coil spring by the arc-shaped portion of the movable gripping piece. FIG. 4 (d) shows a state in which a part of the arc-shaped portion and the linear portion of the movable gripping piece are inverted by 180 degrees. FIG. 5 is an explanatory view showing a process of attaching an adapter to a gripping piece of an insulating jacket, in particular, a linear portion of the movable gripping piece, and FIG. 5A is a linear shape of the movable gripping piece in a normal state. FIG. 5 (b) shows the process of attaching the adapter to the portion, and FIG. 5 (b) attaches the adapter to the linear portion of the movable gripping piece in a state where the arcuate portion and the linear portion of the movable gripping piece of the insulated Yatco are reversed. The process is shown.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows an example of an insulating jacket 1 for indirect hot-wire work in which the present invention is used. The insulating jacket 1 includes a rod-shaped member 2, a grip portion 3 provided at one end in the longitudinal direction of the rod-shaped member 2, an operation portion 4 for operating the grip portion 3, and operations performed by the operation portion 4. It is basically composed of a transmission rod 5 that transmits to the grip portion 3.

  Among these members, the rod-shaped member 2 is a cylindrical member having a relatively large outer diameter that is gripped by an operator, and is formed of an insulating material, and an engaging portion 21 configured by opposing two plates is a gripping portion. Umbrella-shaped brims 22 and 23 are provided in the middle of the axial direction of the three-side end portions. Of these, the collar 22 on the side far from the gripping part 3 is a safety limit collar for distinguishing between positions that an operator may hold and positions that should not be gripped in order to prevent an electric shock accident in indirect hot line work. The flange 23 on the side close to the grip 3 is a draining collar for preventing rainwater from flowing down.

  The grip portion 3 is clamped between the plates of the engagement portion 21 of the rod-shaped member 2 and fixed to the arm-shaped fixed grip piece 31 that does not move, and is gripped between the plates of the engagement portion 21 while being connected to the transmission rod 5. And an arm-shaped movable gripping piece 32 that is pivotally supported via a shaft portion 33. The movable gripping piece 32 is biased in a direction away from the fixed gripping piece 31 by an elastic member (not shown).

  The transmission rod 5 is a rod-shaped member made of an insulating material, and has one end connected to the movable gripping piece 32 and the other end connected via the connecting portion 42 and the shaft portion 44 described below of the operation portion 4 as described above. An umbrella-shaped collar 51 is provided in the middle of the shaft in the axial direction. This collar 51 is a draining collar for preventing the rainwater from flowing down, like the collar 23 of the rod-like member 2.

  The operation unit 4 includes a handle 41, a coupling unit 42, and an attachment unit 43. The handle 41 is configured so as to be rotatable in a direction toward and away from the rod-shaped member 2. The shafts 44 are connected to each other. Note that the configuration of the operation unit 4 is not limited to that shown in FIG. 1, and may be any configuration as long as the movable gripping piece 32 can be operated.

  By adopting such a configuration, the insulating Yachto 1 swings in a direction in which the connecting portion 42 moves away from the gripping portion 3 around the shaft portion 45 by moving the handle 41 in a direction close to the rod-shaped member 2. The transmission rod 5 coupled to the coupling portion 42 via the shaft portion 44 is pulled to the side opposite to the grip portion 3, and the movable gripping piece 32 coupled to the transmission rod 5 rotates around the shaft portion 33. The fixed grip piece 31 and the movable grip piece 32 can be brought relatively close to each other.

  2 and 4, the fixed grip piece 31 constituting the grip portion 3 includes an arc-shaped portion 311 disposed on the engaging portion 21 side, and an engaging portion 21 of the arc-shaped portion 311. The movable gripping piece 32 constituting the grip portion 3 is configured to have an arc-shaped portion 321 disposed on the engaging portion 21 side, and a linear portion 312 extending from the opposite side. A linear portion 322 extending from the opposite side of the engaging portion 21 is provided.

  As shown in FIG. 2, the arc-shaped portion 311 of the fixed gripping piece 31 has a warped side surface 6 formed so that the side facing the movable gripping piece 32 warps in a substantially concave shape, and the movable gripping piece 32. The opposite side is a bulging side surface 7 formed so as to swell into a substantially convex shape, and the overall shape thereof is an arcuate shape. In this embodiment, the anti-slip 61 is formed by arranging triangular columnar protrusions on the warped side surface 6 of the arc-shaped portion 311.

  As shown in FIG. 2, the linear portion 312 of the fixed grip piece 31 is located on the side facing the movable grip piece 32 and is connected to the warped side surface 6, and the side opposite to the movable grip piece 32. And side surfaces 9 connected to the bulging side surface 7, and these side surfaces 8, 9 extend in a straight line and in parallel, and the overall shape thereof is a substantially rectangular parallelepiped shape. In this embodiment, the anti-slip 81 is formed by arranging the triangular prism-shaped protrusions on the side surface 8 which is the same side as the warped side surface 6 of the linear portion 312. Furthermore, a bottomed hole (not shown) into which the tip of the locking pin 1011 of the known adapter 101 shown in FIG. 5 is inserted is formed in the side surface 9 of the linear portion 312.

  As shown in FIG. 2, the arc-shaped portion 321 of the movable gripping piece 32 has a warped side face 10 formed to warp in a substantially concave shape like the warped side face 6 of the fixed gripping piece 31, and this warped side face. 10 has a bulging side surface 11 formed so as to swell in a substantially convex shape, similarly to the bulging side surface 7 of the fixed gripping piece 31, and its overall shape is an arc-shaped portion of the fixed gripping piece 31. Similar to 311, it has a curved shape. The curvature of the bulging side surface 11 of the arc-shaped portion 321 of the movable gripping piece 32 is the same as the curvature of the warping side surface 6 of the arc-shaped portion 311 of the fixed gripping piece 31 and the bulging side surface 11 of the arc-shaped portion 321. A slip stopper 111 in which triangular prism-shaped protrusions are arranged so as to mesh with the protrusions of the slip stopper 61 provided on the warped side surface 6 of the arc-shaped portion 311 is formed.

  As shown in FIG. 2, the linear portion 322 of the movable gripping piece 32 is connected to the warped side surface 10 and extends linearly in the same manner as the side face 8 of the gripping piece 31, and the side of the gripping piece 31. The side surface 13 is connected to the bulging side surface 11 and extends linearly in the same manner as the side surface 9, and the side surface 12 and the side surface 13 are parallel to each other. Similar to the straight portion 312, it has a substantially rectangular parallelepiped shape. In this embodiment, both the side surface 12 and the side surface 13 are formed by arranging triangular prism-shaped protrusions side by side so as to mesh with the protrusions of the anti-slip 81 provided on the side surface 8 of the linear portion 312. Stops 121 and 131 are formed. Further, as shown in FIG. 5, bottom side holes 122 and 132 into which the tips of the locking pins 1011 of the known adapter 101 are inserted are formed on both side surfaces 12 and 13 of the linear portion 312. Is formed.

  As shown in FIGS. 3 and 4, the arc-shaped portion 321 of the movable gripping piece 32 is configured by connecting two members of a base portion 321 a and a rotating portion 321 b in this embodiment. 3, a room 14 opened on the side surface of the rotating portion 321b of the base portion 321a and a room 15 opened on the side surface of the base portion 321a of the rotating portion 321b are provided, and these chambers 14 and 15 are defined. The coil spring 16 is housed in the space. One end of the coil spring 16 is connected to the base portion 321a, and the other end of the coil spring 16 is connected to the rotating portion 321b. The coil spring 16 is biased in the contracting direction and opposite to the winding direction or the winding direction. It can be twisted at least 180 degrees to the side. When the reference line L passing through the center of the coil spring 16 is taken, as shown in FIG. 2, the reference line L is the linear shape of the movable gripping piece 32 regardless of whether or not the linear portion 322 is rotated. It passes through the center of the portion 322.

  Further, as shown in FIG. 3, two recesses 17 and 18 are formed on the side surface of the rotating portion 321b of the base portion 321a at positions symmetrical with respect to the coil spring 16, and the base of the rotating portion 321b is formed. On the side surface of the portion 321a, the warped side surface 10 of the base portion 321a and the warped side surface 10 of the rotating portion 321b coincide with each other at a symmetrical position with respect to the coil spring 16, and the bulging side surface 11 of the base portion 321a and the rotating portion 321b Two protrusions 19 and 20 are formed at positions corresponding to the depressions 17 and 18 when the base portion 321a and the rotating portion 321b abut against each other so that the bulging side surface 11 coincides. In this embodiment, the depression 17 and the protrusion 19 are arranged so as to face the warped side face 10, and the depression 18 and the protrusion 20 are arranged so as to face the bulging side face 11. That is, the recess 17 and the protrusion 19 are arranged at a position closest to the warped side surface 10 on a circular line drawn around the coil spring 16, and the recess 18 and the protrusion 20 are drawn around the coil spring 16. It is arranged at a position closest to the bulging side surface 11 on the circular line.

  Based on the above configuration, a method of using the insulating Yatco 1 according to the present invention will be described.

  As shown in FIG. 2A, the object to be grasped in a state where the warped side surface 6 of the arc-shaped portion 311 of the fixed grip piece 31 and the warped side surface 10 of the arc-shaped portion 321 of the movable grip piece 32 face each other. If the maximum outer diameter dimension W of M is larger than the minimum dimension of the warped side face 6 and the warped side face 10 when the fixed gripping piece 31 and the movable gripping piece 32 are closed, the insulating Yatco 1 is used as it is. When it is determined that the maximum outer diameter W of the gripping object M is smaller than the minimum dimension of the warped side surface 6 and the warped side surface 10 when the fixed gripping piece 31 and the movable gripping piece 32 are closed, FIG. The process shown in is performed.

  In the state where the fixed gripping piece 31 and the movable gripping piece 32 are closed as shown in FIG. 2A, the insulated Yatco 1 is first fixed by moving the movable gripping piece 32 as shown in FIG. 4A. It is assumed that the gripping piece 31 and the movable gripping piece 32 are slightly opened.

  Next, as shown in FIG. 4A, the movable gripping piece 32 is pulled in the direction of the arrow. As a result, as shown in FIG. 4B, the coil spring 16 extends and the arc-shaped portion 321 of the movable gripping piece 32 is in a state in which the base portion 321a and the rotating portion 321b are separated from each other. That is, the protrusions 19 and 20 of the rotating part 321b are in a state of being detached from the recesses 17 and 18 of the base part 321a, respectively, and the restriction on the rotation of the rotating part 321b is released.

  Further, as shown in FIG. 4B, the rotating portion 321b of the arc-shaped portion 321 of the movable gripping piece 32 is rotated 180 degrees by twisting the coil spring 16 as indicated by an arrow. The rotating direction of the rotating portion 321b is a clockwise direction in FIG. 4B, but may be a counterclockwise direction. As a result, as shown in FIG. 4C, the movable gripping piece 32 is reversed, and the bulging side surface 11 of the arc-shaped portion 321 of the movable gripping piece 32 faces the warped side surface 6 of the arc-shaped portion 311 of the fixed gripping piece 31. To come. Although the base portion 321a and the rotating portion 321b are separated from each other, the protrusion 19 of the rotating portion 321b faces the recess 18 of the base portion 321a, and the protrusion 20 of the rotating portion 321b faces the recess 19 of the base portion 321a. To come.

  Furthermore, as shown in FIG. 4 (c), by utilizing the restoring force of the coil spring 16, the rotating portion 321b of the arc-shaped portion 321 of the movable gripping piece 32 is moved in the arrow direction, and the outer edge line of the end surface of the rotating portion 321b. And the rotating portion 321b of the arc-shaped portion 321 are brought into contact with the base portion 321a of the arc-shaped portion 321 so that the outer edge line of the end surface of the base portion 321a matches. As a result, the protrusion 19 of the rotating portion 321b is inserted into the recess 18 of the base portion 321a, and the protrusion 20 of the rotating portion 321b is inserted into the recess 19 of the base portion 321a, and the rotation of the rotating portion 321b is restricted. In the form, as shown in FIG. 4D, the rotating portion 321 b of the arc-shaped portion 321 is assembled to the base portion 321 a of the arc-shaped portion 321.

  As a result, by rotating the movable gripping piece 32, the bulging side surface 11 of the arc-shaped portion 321 of the movable gripping piece 32 and the warped side surface 6 of the arc-shaped portion 311 of the fixed gripping piece 31 are rotated as shown in FIG. Because of the contact, the warped side surface 6 of the arc-shaped portion 311 of the fixed gripping piece 31 and the arcuate shape of the movable gripping piece 32 no matter how small the maximum outer diameter W of the gripping object M is such as a thin wire. The portion 312 can be sandwiched and held between the bulging side surfaces 11. Moreover, since the slip stoppers 61 and 111 are provided on both the warped side surface 6 of the arc-shaped portion 311 of the fixed gripping piece 31 and the bulging side surface 11 of the arc-shaped portion 312 of the movable gripping piece 32, the gripped gripping object M Is prevented from slipping toward the straight portions 312 and 322.

  On the other hand, as shown in FIG. 5, an adapter 101 with various tools attached may be attached to the linear portions 312 and 322 of the gripping pieces 31 and 32 of the insulating Yatco 1. The tip of the locking pin 1011 is inserted into the holes of the linear portions 312 and 322 and locked. And, as the linear portion 322 of the movable gripping piece 32 of the insulating Yachto 1 comes to face the outside as the rotating portion 321b of the arc-shaped portion 321 is reversed, as shown in FIG. In addition to the hole 131 provided in the side surface 13, the side surface 12 is also provided with the hole 122, so that the adapter 101 can be mounted even when the linear portion 322 of the movable gripping piece 32 is inverted. Is possible.

  In this embodiment, a configuration in which a part of the arc-shaped portion 321 of the movable gripping piece 32 of the insulating jacket 1 rotates is shown. However, the present invention is not limited to this, and although not shown, the entire arc-shaped portion 321 rotates. You may do it. Further, the rotation mechanism mainly composed of the coil spring 16 and the rotation restricting means composed of the recesses 17 and 18 and the protrusions 19 and 20 are also used in the other indirect hot wire tool, not limited to the insulating Yatco 1. It is possible.

1 Insulated Yatco (gripping tool for indirect hot wire work)
2 Rod-shaped member 3 Holding part 31 Fixed holding piece 311 Arc-shaped part 312 Linear part 32 Movable holding piece 321 Arc-shaped part 321a Base part 321b Rotating part 322 Straight-line part 6 Warp side surface 61 Non-slip 7 Swelling side surface 8 Side surface 9 Side surface 10 Warpage side surface 11 Swelling side surface 111 Non-slip 12 Side surface 122 Hole portion 13 Side surface 132 Hole portion 16 Coil spring (expandable rotation member)
17 depression (regulation means)
18 depression (regulation means)
19 Protrusion (regulation means)
20 Protrusion (regulation means)
101 Adapter 1011 Locking pin

Claims (4)

A linearly extending rod-shaped member and a gripping portion provided at one end in the longitudinal direction of the rod-shaped member, the gripping portion is composed of a fixed gripping piece and a movable gripping piece, and the movable gripping piece is In an indirect live-line gripping tool capable of gripping a gripping object placed between these gripping pieces by moving away from the fixed gripping piece,
The fixed grip piece and the movable grip piece each include an arc-shaped portion formed on the rod-shaped member side, and a linear portion extending from the arc-shaped portion to the opposite side of the rod-shaped member. The arcuate portion can be rotated in whole or in part, and the curvature of the bulging side surface of the arcuate portion of the movable gripping piece matches the curvature of the warped side surface of the arcuate portion of the fixed gripping piece. Indirect hot wire gripping tool.   As a rotation mechanism for reversing all or a part of the arc-shaped portion of the movable gripping piece, a base portion serving as a rotation source and a rotation portion serving as a rotation side are connected by a telescopic rotation member, and the base portion and the rotation portion 2. The indirect hot-wire gripping tool according to claim 1, further comprising: a restricting means for restricting rotation of the rotating portion on at least one side. 2. The movable gripping piece is provided with a slip stopper on a bulging side surface of the arc-shaped portion, and the fixed gripping piece is provided with a slip stopper on a warped side surface of the arc-shaped portion. 2. A gripping tool for indirect live lines as set forth in 2.   The movable gripping piece has a hole in a side surface on the same side as a warped side surface of the arc-shaped portion in the linear portion and a side surface on the same side as a bulging side surface of the arc-shaped portion in the linear portion. The indirect hot wire gripping tool according to any one of claims 1 to 3, wherein a holding tool is provided.

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