TW201743525A - Gripping device for indirect hot-line work - Google Patents

Abstract

Provided is a gripping tool which is for indirect live-wire work and which is capable of gripping a relatively thick electric wire and a relatively thin electric wire by using one insulated operation rod. A gripping tool for indirect live-wire work according to the present invention is characterized by comprising an insulated operation rod, a gripping part including a movable gripping part and a fixed gripping part, an auxiliary insulated operation rod, and a gripping operating part, wherein: the fixed gripping part is formed into a shape an end part of which is divided into two; the movable gripping part has an arc-like curved surface formed so as to come into contact with an electric wire and to have an arc shape on a plane including the axial direction of the insulated operation rod; the fixed gripping part is provided with an engagement section having a shape bent at an obtuse angle so as to grip both the electric wire having a small diameter and the electric wire having a large diameter; and when the gripping part is in a closed state, a fan-shaped space is formed between the arc-like curved surface of the movable gripping part and the engagement section of the fixed gripping part.

Description

Indirect live work control tool

FIELD OF THE INVENTION The present invention relates to an indirect live work holding tool. In particular, there is an indirect live-action tool that can indirectly operate a high-voltage power distribution line that is not in a power-off state, and is an indirect live-action tool that can hold an electric wire or the like.

BACKGROUND OF THE INVENTION In the past, there were two methods of direct live working and indirect live working in the live working of the high-voltage distribution line with no electric power. In the direct live line method, the operator wears a protective tool such as a high-pressure rubber glove and directly contacts the high-voltage power distribution line that is energized to carry out the work of the electrician, but there is a risk of an electric shock accident. On the other hand, the indirect live-line method is an engineering method in which an operator uses an indirect live-action tool to hold an electrician without directly contacting a high-voltage distribution line that is energized.

In general, indirect live work holding tools include indirect live work holding tools called insulated tongs and insulated quick tongs. These are structures that are formed so that the front end tool that has been attached to the front end portion cannot be replaced. That is, the insulating tongs or the insulating quick tongs are one special tool and are special tools for holding the wires. Insulation pliers are used to hold relatively thick wires. Insulated quick tongs are used to reliably hold relatively thin wires. Prior Technical Literature Patent Literature

Patent Document 1: Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei.

SUMMARY OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION In the past, when the operator uses these indirect line work holding tools to perform the cutting operation of the lead wire of the high-voltage power distribution line, etc., there is a possibility that the wires having a plurality of diameters are to be held. In the case where the diameter of the wire is not known, the insulating tongs and the insulating quick tongs must be prepared together to be able to work in accordance with the diameter of the wire used for holding. However, indirect live-action tools for wire holding such as insulating tongs and insulated quick tongs are bulky and take up space. Therefore, when the operator performs work in a narrow bucket of the aerial work vehicle, in the bucket, in addition to a plurality of operators, there are indirect activities such as the insulating clamp and the insulation quick clamp. Line work is crowded with tools, and there are problems that are difficult to work with.

The present invention has been made to solve such a problem, and an object thereof is to provide an indirect live line that can be held by an indirect live work holding tool, whether it is a relatively thick wire or a relatively thin wire. Work control tools. Means to solve the problem

The request item 1 of the present invention is provided with a live wire work holding tool, and has an insulating insulating operation bar and a grip portion having a length for maintaining a safe safety distance between the electric wire and the human body, the control The part is attached to the front end portion of the insulating operation bar, and has two switch pieces that can be opened and closed by the operation of the holding operation portion of the insulating operation bar. The indirect line work holding tool is characterized in that The two switch pieces of the grip portion include a fixed grip portion formed in a shape in which the tip end portion is divided into two in a direction intersecting the switch direction, and a movable grip portion that can be fixed at the front end portion when the switch piece is closed The grip portion is formed into two front end portions, and the movable grip portion is formed with an arcuate curved surface that is arc-shaped against the electric wire on a plane including the axial direction of the insulating operation rod, and the fixed grip portion is provided with an engagement portion. The engaging portion is bent at an obtuse angle to a plane that can draw a small diameter or a large diameter on the same plane as the plane on which the arcuate curved surface of the movable grip portion is drawn. Wire shapes, when the arcuate surfaces between the gripping portion is closed, the movable gripping portion and the engagement portion formed in the fixed gripping portion of the fan-shaped space. The request item 2 of the present invention is characterized in that the movable wire gripping tool is provided with a recess in the width direction. In the request item 3 of the present invention, the live-action work holding tool is characterized in that a substantially central portion of the movable grip portion is provided with a recess in the width direction. In the invention, the live-action holding tool is connected, and in the engaging portion where the fixed grip portion is bent at an obtuse angle, the angle of the bending is preferably from 105 to 120 degrees. In the invention, the live-action holding tool is connected, and the radius of curvature of the curved surface of the movable grip portion is preferably about 1.5 times to about 3 times of 15 mm. The arcuate curved surface of the movable grip portion is a curved surface that extends across the bisector of the corner formed by the engaging portion of the fixed grip portion, and is convex in the opposite direction to the convex portion of the bent portion of the engaging portion of the fixed grip portion. The curved surface of the arc. In the invention, the arcuate curved surface of the movable grip portion of the movable wire gripping tool is preferably formed such that the center of curvature thereof is formed at a right angle from the center portion with respect to a straight line connecting the base portion of the movable grip portion and the base end side of the central portion. The straight line extending on the end side becomes more inner.

According to the invention of claim 1, when the fixed grip portion and the movable grip portion are placed at the position where they are in contact or intersect, the engagement portion of the fixed grip portion and the arc curved surface of the movable grip portion formed at an obtuse angle are Form a fan-shaped space. When the linear body to be gripped is placed in the space of the fan shape, the operator operates the grip operation portion and closes the grip portion, thereby causing the linear body to be engaged from the fixed grip portion and the movable grip. The arcuate surface of the part is subjected to the opposing pressure. With the invention of claim 2, the fixed grip can maintain both strength and weight. In this way, the indirect live work control tool can be lightened. According to the invention of claim 3, the movable grip portion can maintain both strength and weight. In this way, the indirect live work control tool can be lightened. Effect of the invention

The linear body having a diameter of 5 mm to 30 mm can be gripped by the invention of the invention of claim 1. According to the invention of claim 2, the linear work tool can be held by the movable work tool, and the linear body having a diameter of 5 mm to 30 mm can be gripped, and the indirect live work holding tool can be lightened. According to the invention of claim 3, the wire-shaped work holding tool can be used to hold the linear body having a diameter of 5 mm to 30 mm, and the indirect live-action holding tool can be lightened. Therefore, the operator only needs to carry one of the live-action work-holding tools of the present invention to the work site of the indirect live work, and it becomes unnecessary to carry both the insulating tongs and the insulating quick tongs. Moreover, as long as the indirect live work holding tool can be lightened, the operator can easily position the indirect live work holding tool to the target position.

The above and other objects, features and advantages of the present invention will become more apparent from

MODE FOR CARRYING OUT THE INVENTION The indirect live action holding tool according to the embodiment of the present invention will be described with reference to the drawings. Hereinafter, the longitudinal direction of the insulating operation rod 14 is defined as the vertical direction, and the direction away from the central axis of the insulating operation rod 14 is defined as the outer direction. Further, the embodiments shown below are merely examples of the invention, and are not intended to limit the technical scope of the invention.

The indirect line work holding tool 10 shown in FIG. 1 has a grip portion 12, an insulating operation bar 14 to which the grip portion 12 is attached at the distal end portion, and an auxiliary insulation operation for transmitting the operation by the grip operation portion 26 to the grip portion 12. The rod 24 and the grip operation portion 26 provided in the vicinity of the proximal end portion of the insulating operation rod 14. The grip operation unit 26 operates the contact separation operation of the grip unit 12. Hereinafter, each component will be described in detail.

The insulating operation bar 14 is a cylindrical rod-shaped member made of an insulating material. Since the indirect live work holding tool 10 is a tool for cutting work such as a lead wire of a high voltage power distribution line, the insulating operation bar 14 has a length for maintaining a safe safety distance between the electric wire and the human body. In order to avoid creeping discharge and leakage, the insulating operating rod 14 is provided with a rainproof member 16 and a retaining edge 18. As described above, the grip portion 12 is attached to the distal end portion, and the grip operation portion 26 is provided in the vicinity of the proximal end portion. By the insulating operation bar 14, the operator positions the grip portion 12 attached to the front end portion to the work position, and the contact operation portion 26 performs the contact separation operation of the grip portion 12.

The auxiliary insulating operation bar 24 is made of the same material as the insulating operation bar 14, and similarly to the insulating operation bar 14, a rainproof member 16 is provided to prevent electric leakage and creeping discharge. The front end portion of the auxiliary insulating operation bar 24 is rotatably coupled to the base portion 20d of the movable grip portion 20, which will be described later. The proximal end portion of the auxiliary insulating operation bar 24 is rotatably coupled to the actuation piece 26e of the grip operation portion 26, which will be described later. The auxiliary insulating operation bar 24 assists the contact separation operation by the grip operation portion 26 of the grip portion 12 that has been attached to the front end portion of the insulating operation rod 14.

The grip portion 12 has a movable grip portion 20 and a fixed grip portion 22. The fixed grip portion 22 has a base portion 22a, a first straight portion 22b1, a second straight portion 22b2, and a third straight portion 22b3. The fixed grip portion 22 is formed of a hard material such as a metal material. The base portion 22a of the fixed grip portion 22 is fitted to the front end portion of the insulating operation rod 14 and fixed. As shown in FIG. 3A (A), the first straight portion 22b1 that extends substantially linearly at an angle of approximately 30 degrees upward and outward with respect to the longitudinal direction of the insulating operation rod 14 is formed from the base portion 22a. Here, the outer side refers to a direction opposite to the direction in which the movable grip portion 20 and the fixed grip portion 22 face, and is a direction intersecting the central axis of the insulating operation rod 14. Further, a second straight portion 22b2 extending from the first straight portion 22b1 and extending at an angle of substantially 17 degrees to the outside is formed. Further, a third straight portion 22b3 which is bent upward and inwardly at an angle of 75 to 60 degrees is formed in the second straight portion 22b2. Here, the inner side refers to a direction in which the movable grip portion 20 and the fixed grip portion 22 face each other, and is a direction intersecting the central axis of the insulating operation rod 14. The central portion base end side 20c of the movable grip portion 20 is rotatably coupled to the upper portion of the base portion 22a that is the fixed grip portion 22 and is connected to the first straight portion 22b1 and the second straight portion 22b2 via the pivot shaft 30. .

A first abutting surface 222b1 is formed inside the first straight portion 22b1. The first abutting surface 222b1 is a plane V shown in FIG. 2 (the plane V is a plane including the axial direction of the insulating operation rod 14 and the longitudinal direction of each of the straight portions 22b1, 22b2, and 22b3. Hereinafter, it is referred to as "virtual plane V". The planes are orthogonal to each other and include the longitudinal direction of the first straight portion 22b1. The plane in which the first abutting surface 222b1 extends may intersect the axis of the insulating operation rod 14. Similarly, a second abutting surface 222b2 is formed inside the second straight portion 22b2. The second abutting surface 222b2 is orthogonal to the imaginary plane V and is a plane including the longitudinal direction of the second straight portion 22b2. The plane in which the second abutting surface 222b2 extends will intersect the axis of the insulating operation rod 14. Similarly, a third abutting surface 222b3 is formed inside the third straight portion 22b3. The third abutting surface 222b3 is a plane orthogonal to the imaginary plane V and including the longitudinal direction of the third straight portion 22b3. The plane in which the third abutting surface 222b3 extends may intersect the axis of the insulating operation rod 14. The bent portion of the second abutting surface 222b2 and the third abutting surface 222b3 is referred to as an engaging portion C. The bisector of the bending angle of the second abutting surface 222b2 and the third abutting surface 222b3 is D.

The angle formed by the second abutting surface 222b2 on the inner side of the second straight portion 22b2 and the third abutting surface 222b3 on the inner side of the third straight portion 22b3 is an angle of 105 to 120 degrees. The electric wire 84 can be locked to the engaging portion C of the bent portion between the second abutting surface 222b2 and the third abutting surface 222b3. In addition, the third straight portion 22b3 is formed into a shape divided into two, and the front end portion 20a of the movable grip portion 20 can be rotated to enter the shape between the third straight portions 22b3 divided into two. . The tip end of the third straight portion 22b3 is formed to be thinner than the second straight portion 22b2 in the plane direction of the imaginary plane V. Thereby, it is possible to reduce the weight of the grip portion 22, that is, to reduce the weight of the indirect line work holding tool 10. The first straight portion 22b1 and the second straight portion 22b2 of the fixed grip portion 22 are provided with depressions in the orthogonal direction of the imaginary plane V. Thereby, it is possible to reduce the weight of the grip portion 22, that is, to reduce the weight of the indirect line work holding tool 10. The second abutting surface 222b2 and the third abutting surface 222b3 of the fixed grip portion 22 are provided with a plurality of ridges W extending in a direction orthogonal to the imaginary plane V and holding the electric wires 84. The wire 84 functions as a slip prevention function. Therefore, by the ridge W extending in the axial direction of the electric wire 84, the indirect live work holding tool 10 can surely hold the electric wire 84 on the grip portion 12 without sliding it.

The movable grip portion 20 has a distal end portion 20a, a central portion 20b, a central portion proximal end side 20c, and a base portion 20d. Similarly, the movable grip portion 20 and the fixed grip portion 22 are formed of a hard material such as a metal material. The movable grip portion 20 is formed into a general shape in which the projection of the bent portion (engagement portion C) in the second abutting surface 222b2 and the third abutting surface 222b3 of the fixed grip portion 22 is drawn on the virtual plane V. The opposite direction protrudes from a roughly circular or crescent curve. In particular, inside the movable grip portion 20, an arcuate curved surface 200r that is orthogonal to the imaginary plane V and draws an arc on the imaginary plane V is formed. The circular curved surface 200r is a contact surface with the electric wire 84, and is formed in a concave shape. The radius of curvature of the circular curved surface 200r is about 1.5 times to about 3 times the larger radius (about 15 mm) of the wire 84 of the object to be grasped. The circular curved surface 200r is a curved surface that extends across the bisector D of the angle formed by the second abutting surface 222b2 of the fixed grip portion 22 and the third abutting surface 222b3, and is a second abutment with the fixed grip portion 22. The curved portion of the surface 222b2 and the third abutting surface 222b3 protrudes in a curved shape which is convex in the opposite direction. The arcuate curved surface 200r is formed such that the center of curvature thereof becomes more inward than the straight line L2 extending from the central portion proximal end side 20c at a right angle with respect to the straight line L1 connecting the base portion 20d of the movable grip portion 20 and the central portion proximal end side 20c. . The central end side 20c of the movable grip portion 20 is rotatably coupled to the upper portion of the base portion 22a of the fixed grip portion 22 and is connected to the first straight portion 22b1 and the second straight portion 22b2 via the pivot shaft 30. . Further, the base portion 20d of the movable grip portion 20 is rotatably coupled to the front end portion of the auxiliary insulating operation bar 24. Thereby, in response to the movement of the operation lever 26a of the operation unit 26, the movable grip portion 20 is pivoted in the direction of the arrow B around the pivot axis 30. In particular, when the movable grip portion 20 approaches the fixed grip portion 22, the distal end portion 20a of the movable grip portion 20 can enter between the third straight portions 22b3 divided into two by the fixed grip portion 22. The shape of the front end portion 20a of the movable grip portion 20 is formed to be thinner than the central portion 20b of the movable grip portion 20 in the plane direction of the virtual plane V. As a result, the weight of the movable grip unit 20, that is, the weight reduction of the indirect line work holding tool 10 can be achieved. The central portion 20b of the movable grip portion 20 is provided with a recess in the orthogonal direction of the virtual plane V. As a result, the weight of the movable grip unit 20, that is, the weight reduction of the indirect line work holding tool 10 can be achieved. The arcuate curved surface 200r of the abutting surface of the movable grip portion 20 and the electric wire 84 is provided with a plurality of ridges W in a direction orthogonal to the imaginary plane V, and the ridges W are for the electric wires when the electric wires 84 are gripped 84 plays the anti-slip function. Therefore, by the ridge W extending in the axial direction of the electric wire 84, the indirect live work holding tool 10 can surely hold the electric wire 84 on the grip portion 12 without sliding it.

The grip operation unit 26 is provided in the vicinity of the proximal end portion of the insulating operation bar 14, and has an operation lever 26a, a support metal fitting 26b, a release lever 26c, an operation rotation shaft 26d, and an actuation piece 26e. On the supporting metal fitting 26b, the operating lever 26a is pivotally supported by the operating rotary shaft 26d. The actuating piece 26e that protrudes toward the same side as the operating lever 26a is rotatably coupled to the proximal end portion of the auxiliary insulating operating rod 24. Therefore, when the operator performs the operation of holding the operation lever 26a, the auxiliary insulating operation bar 24 is pulled downward by the action of the lever, and the movable grip portion 20 of the grip portion 12 is operated to be closed toward the fixed grip portion 22. Therefore, the indirect live work holding tool 10 becomes able to surely hold the electric wire 84 on the grip portion 12 without sliding it.

Further, a spring 28 that imparts a potential energy in a direction in which the operating lever 26a is opened is attached between the supporting metal fitting 26b and the operating lever 26a. By the spring 28, when the operator does not operate the operating lever 26a, the operating lever 26a is brought into an open state. Along with this, the movable grip portion 20 can be held in an open state away from the fixed grip portion 22.

The support metal fitting 26b is provided with a lock mechanism. Since the lock mechanism is a conventional mechanism which has been described in detail in the above-mentioned Patent Document 2, it will be briefly described below. The lock mechanism includes a bearing-shaped one-way clutch (not shown) that uses a roller (not shown) attached to a fulcrum position of a lever of the operating lever 26a, and an operating rotary shaft that supports the one-way clutch. 26d. A plurality of locking mechanisms (not shown) for fixing the rotation of the operation rotary shaft 26d at an arbitrary position. Although not shown in the drawings, the locking mechanism includes a locking gear fixed to the operation rotation shaft 26d, a locking pin that locks the locking gear, and a potential energy for guiding the locking pin toward the locking gear. The lock spring, the release lever 26c that releases the lock pin, releases the lock lever 26c that unlocks the lock pin, and the lever support shaft that rotatably supports the release lever 26c, and holds the release lever 26c in the unlocked position. Or an open card release knob and a knob support shaft that can rotatably support the release knob.

Further, when the locking mechanism is set to the open position and the lock mechanism is opened, the operation rotary shaft 26d can be freely rotated, and the action of the one-way clutch becomes unrelated to the operation of the operating lever 26a. On the other hand, the operating lever 26a is freely rotated, and the switching operation of the operating lever 26a is transmitted to the auxiliary insulating operating rod 24, so that the movable grip portion 20 is switched in response to the switching operation of the operating lever 26a. On the other hand, when the locking mechanism is set to the locking position and the locking mechanism is actuated, the operation rotary shaft 26d is locked, and the operation lever 26a can only be moved by the action of the one-way clutch. The direction of closing (i.e., the state in which the auxiliary insulating operating rod 24 is pulled down) is rotated, and the operating lever 26a can be locked in an arbitrary position by a non-segmented manner.

Therefore, when the operator operates the operating lever 26a in the closing direction, the operating lever 26a stops at the position where the operator operates in the closing direction. At the same time, the movable grip portion 20 passes through the auxiliary insulating operation rod 24 to be locked in a position corresponding to the closed position of the operation lever 26a. In this case, regardless of the size of the diameter of the wire 84 of the object to be grasped, the operator can release the hand from the operating lever 26a at the time when the operator determines that the object to be grasped can be held by the force suitable for the work. It is formed so as to lock the operating lever 26a in this state.

Next, a state of use of the wire holding wire 84 by the live wire work holding tool 10 of the present invention will be described with reference to Fig. 4 . The operator holds the base end portion of the insulating operation bar 14 and moves the entire indirect line work holding tool 10 so that the grip portion 12 that is opened by the spring 28 is brought close to the wire 84 to be gripped. The target location. When the grip portion 12 reaches the target position of the electric wire 84, the operator can apply the grip force to the operation lever 26a of the grip operation portion 26 in the closing direction. Thereby, the arcuate curved surface 200r of the movable grip portion 20 abuts against the electric wire 84, and gradually presses the electric wire 84 toward the engaging portion C of the fixed grip portion 22.

When the electric wire 84 has a small diameter (about 5 mm in diameter), as shown in FIG. 4A, the front end portion 20a of the movable grip portion 20 penetrates into the third straight portion of the fixed grip portion 22 which is divided into two. Between 22b3. At this time, the electric wire 84 abuts on the arcuate curved surface 200r at or above the bisector D of the bending angle between the second abutting surface 222b2 and the third abutting surface 222b3. Thereby, the second abutting surface 222b2 and the arcuate curved surface 200r in the vicinity of the central portion 20b of the movable grip portion 20 are opposed to each other. As a result, the electric wire 84 receives a strong pressure from the arcuate curved surface 200r near the central portion 20b of the movable contact portion 20 in the vicinity of the engaging portion C of the fixed grip portion 22, and is firmly pressed. Control.

When the electric wire 84 has a large diameter (about 30 mm in diameter), as shown in FIG. 4B, the front end portion 20a of the movable grip portion 20 does not enter between the third straight portions 22b3 of the fixed grip portion 22, and It is located at a position slightly away from the third straight portion 22b3 of the fixed grip portion 22. At this time, the electric wire 84 is in contact with the circular arc curved surface 200r at a lower side than the bisector D of the bending angle between the second abutting surface 222b2 and the third abutting surface 222b3. Thereby, the third abutting surface 222b3 and the arcuate curved surface 200r in the vicinity of the central portion 20b of the movable grip portion 20 are opposed to each other. Thereby, the electric wire 84 receives a strong pressure from the arcuate curved surface 200r in the vicinity of the central portion 20b of the movable contact portion 20 in the vicinity of the engaging portion C of the fixed grip portion 22, and firmly Be controlled.

Next, when the bending angle of the engaging portion C of the fixed grip portion 22 is small, the present invention cannot exhibit the effect. When the angle of the engagement portion C between the second abutting surface 222b2 of the fixed grip portion 22 and the bent portion of the third abutting surface 222b3 is extremely small compared to 105 to 120 degrees, the wire having a large diameter 84 will not be firmly held by the fixed grip portion 22 and the movable grip portion 20. This is because the third contact surface 222b3 of the fixed grip portion 22 does not face the arcuate curved surface 200r near the central portion 20b of the movable grip portion 20, or the electric wire 84 cannot be accommodated in the fixed grip portion 22. Between the abutting surface 222b2 and the third abutting surface 222b3, the electric wire 84 is not applied to the pressure that can be gripped. This is likely to also be related to the situation in which the wire 84 is detached from the indirect live work holding tool 10.

In addition, in the case where the bending angle of the engaging portion C of the fixed grip portion 22 is large, the present invention cannot be exerted. When the angle of the engagement portion C between the second abutting surface 222b2 of the fixed grip portion 22 and the bent portion of the third abutting surface 222b3 is extremely large compared to 105 to 120 degrees, the wire having a small diameter is small. 84 will not be firmly held by the fixed grip portion 22 and the movable grip portion 20. This is because the second abutting surface 222b2 of the fixed grip portion 22 does not face the arcuate curved surface 200r near the central portion 20b of the movable grip portion 20, or the distal end portion 20a and the fixed grip portion of the movable grip portion 20 are fixed. The base portion of the second straight portion 22b3 divided into two (the dotted line portion above the engaging portion C in FIGS. 4A and 4B) interferes with each other, and the movable grip portion 20 and the fixed grip portion cannot be sufficiently sufficiently The 22 phases are close, so the wire 84 is not applied to the pressure that can be gripped.

The invention is not limited to the foregoing embodiments, and various modifications can be made based on the idea of the invention. Hereinafter, other embodiments of the present invention will be described. In the foregoing embodiment, the rain shield 16 is provided at approximately the middle portion of the insulating operation bar 14, and the rain shield 16 is a constituent element for preventing creeping discharge and electric leakage caused by rain. Therefore, even in the insulating operation bar 14 of the above-described embodiment, the configuration in which the rain guard 16 is not provided can be obtained, and the effects of the present invention can be obtained in the same manner as in the above embodiment.

Further, as another embodiment of the present invention, the live wire work holding tool 10 is connected to each other as shown in FIGS. 5 and 6A and 6B. In this embodiment, the distal end portion 20a of the movable grip portion 20 is formed outside the straight line L2, and the straight line L2 is a line L1 with respect to the base portion 20d connecting the movable grip portion 20 and the central portion base end side 20c. A straight line extending at right angles from the base end side 20c of the center. Thereby, when the grip portion 12 is in the open state, the distal end portion 20a of the movable grip portion 20 and the front end portion of the third straight portion 22b3 of the fixed grip portion 22 are far apart. Therefore, the operator can easily pull the relatively thick wire 84 into the grip portion 12. In this embodiment, as shown in FIG. 6A and FIG. 6B, since the indirect live-action holding tool 10 can hold a relatively thin wire (about 5 mm in diameter), it is also possible to hold a relatively thick wire (about 30 mm in diameter). Therefore, the effects of the present invention can be obtained.

As described above, the embodiments of the present invention have been disclosed in the above description, but the present invention is not limited thereto. That is, in the above-described embodiments, various changes can be made in terms of mechanism, shape, material, quantity, position, arrangement, etc., without departing from the technical idea and object of the present invention, and the like. In the present invention.

10‧‧‧Indirect live work control tools
12‧‧‧Control Department
14‧‧‧Insulated operating rod
16‧‧‧ rain gear
18‧‧‧ Guardian
20‧‧‧ movable grip (switch sheet)
20a‧‧‧ movable front part
20b‧‧‧The central part of the movable control department
20c‧‧‧The central end of the central part of the movable grip
20d‧‧‧The base of the movable control department
22‧‧‧Fixed grip (switch sheet)
22a‧‧‧The base of the fixed grip
22b1‧‧‧The first straight part of the fixed grip
22b2‧‧‧The second straight part of the fixed grip
22b3‧‧‧3rd straight section of the fixed grip
222b1‧‧‧The first abutment surface of the fixed grip
222b2‧‧‧2nd abutment surface of fixed grip
222b3‧‧‧The third abutment of the fixed grip
24‧‧‧Auxiliary insulation rod
26‧‧‧Control operation department
26a‧‧‧Operator
26b‧‧‧Support metal parts
26c‧‧‧Removal
26d‧‧‧Operating rotary shaft
26e‧‧‧Actors
28‧‧‧ Spring
30‧‧‧ pivot
84‧‧‧Wire
200r‧‧‧ movable curved surface
B‧‧‧ arrow
C‧‧‧Fixed part of the fixed grip
D‧‧‧ bisector of the bend angle of the second abutment surface of the fixed grip portion and the third abutment surface
L1‧‧‧Connects the line between the base of the movable grip and the base end of the central part
L2‧‧‧ is a straight line orthogonal to L1 and is a straight line extending from the base end side of the central portion of the movable grip portion
V‧‧‧ virtual plane
W‧‧‧

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front elevational view showing the in-line live work holding tool of the present invention. (A) of FIG. 2A is an enlarged perspective view of the vicinity of the grip portion seen from the side of the movable grip portion of the indirect line work holding tool. (B) of FIG. 2B is an enlarged perspective view of the vicinity of the grip portion seen from the side of the fixed grip portion of the indirect line work gripping tool. (C) of FIG. 2C is an enlarged left side view of the vicinity of the grip portion of the indirect line work holding tool, and (D) is an enlarged right side view of the vicinity of the grip portion of the indirect line work holding tool. (A) of FIG. 3A is a front view of the fixed grip portion. Fig. 3B(B) is a left side view of the fixed grip portion, and (C) is a right side view of the fixed grip portion. Fig. 3C(D) is a front view of the movable grip portion, (E) is a left side view of the movable grip portion, and (F) is a right side view of the movable grip portion. Fig. 4A is an enlarged front elevational view showing the vicinity of a grip portion in a state in which a thin wire (a diameter of about 5 mm) is held by an indirect wire work holding tool. Fig. 4B is an enlarged front elevational view showing the vicinity of the grip portion in a state in which a thick wire (having a diameter of about 30 mm) is held by the indirect wire work holding tool. Fig. 5 is a front elevational view showing the movable grip portion of the indirect live action holding tool according to another embodiment of the present invention. Fig. 6A is an enlarged front elevational view showing the vicinity of a grip portion in a state in which a thin wire (a diameter of about 5 mm) is held by an indirect wire work holding tool according to another embodiment of the present invention. Fig. 6B is an enlarged front elevational view showing the vicinity of the grip portion in a state in which the indirect live wire work holding tool holds a thick electric wire (having a diameter of about 30 mm) in another embodiment of the present invention.

10‧‧‧Indirect live work control tools

12‧‧‧Control Department

14‧‧‧Insulated operating rod

16‧‧‧ rain gear

18‧‧‧ Guardian

20‧‧‧ movable grip (switch sheet)

20a‧‧‧ movable front part

20b‧‧‧The central part of the movable control department

20c‧‧‧The central end of the central part of the movable grip

20d‧‧‧The base of the movable control department

22‧‧‧Fixed grip (switch sheet)

22a‧‧‧The base of the fixed grip

22b1‧‧‧The first straight part of the fixed grip

22b2‧‧‧The second straight part of the fixed grip

22b3‧‧‧3rd straight section of the fixed grip

222b1‧‧‧The first abutment surface of the fixed grip

222b2‧‧‧2nd abutment surface of fixed grip

222b3‧‧‧The third abutment of the fixed grip

24‧‧‧Auxiliary insulation rod

26‧‧‧Control operation department

26a‧‧‧Operator

26b‧‧‧Support metal parts

26c‧‧‧Removal

26d‧‧‧Operating rotary shaft

26e‧‧‧Actors

28‧‧‧ Spring

30‧‧‧ pivot

200r‧‧‧ movable curved surface

B‧‧‧ arrow

C‧‧‧Fixed part of the fixed grip

Claims (3)

An indirect live-action holding tool having: an insulating insulating operating rod having a length for maintaining a safe safety distance between the electric wire and the human body; and a grip portion mounted at a front end portion of the insulating operation rod Further, the switch device is provided with two switch pieces that can be operated by the operation of the holding operation portion of the insulating operation bar. The indirect line work holding tool is characterized in that the two switch pieces of the grip portion are provided. The fixed grip portion is formed in a shape in which the front end portion is divided into two in a direction intersecting the switch direction, and the movable grip portion is formed in the front end portion into the fixed grip portion when the switch piece is closed. The distal end portion of the movable grip portion is formed with an arcuate curved surface that is in contact with the electric wire on the plane including the axial direction of the insulating operation rod, and the fixed grip portion includes an engagement portion, and the engagement portion is On the same plane as the plane on which the arc surface of the movable grip portion is drawn, the arc is bent at an obtuse angle to hold the small diameter or straight A wire according to any of the shape, the aforementioned grip portion is in the closed state, the movable sector is in a space formed between the arcuate surface and the engaging portion of the fixed gripping portion of the gripping portion. The request item 1 is connected to the live line work holding tool, wherein the fixed holding portion is provided with a recess in the width direction. The request item 1 is connected to the live line work holding tool, wherein a substantially central portion of the movable grip portion is provided with a recess in the width direction.