TW202027928A - Gripping device for indirect hot-line work - Google Patents

Abstract

Provided is a gripping tool for indirect hot-line work, said gripping tool being capable of gripping various objects to be gripped at the central portion and end portion of a gripping portion. The gripping tool 10 for indirect hot-line work is provided with an insulating manipulation rod, a gripping portion, an auxiliary insulating manipulation rod, and a gripping manipulation portion. The gripping portion has a movable gripping portion and a stationary gripping portion. The stationary gripping portion and the movable gripping portion are respectively provided with base end portions, central portions, and end portions. The central portions respectively are portions touching an object to be gripped on the inside in a surface direction including the axis line direction of the insulating manipulation rod and have first recess portions recessed outward and first protrusion portions protruding inward so as to form a wave bending or curving in the surface direction continuously from the base end portion side toward the end portion side.

Description

Control tool for indirect live line fortifications

Invention field The invention relates to a holding tool for indirect live line fortifications.

Background of the invention In the past, a gripping tool for indirect live wire construction called a so-called insulated pliers has a gripping portion provided at the tip of an insulated operating rod. The holding part of the insulated pliers is composed of a fixed holding part and a movable holding part, and is set to hold the object by rotating the movable holding part toward the fixed holding part, and the tip of the holding part is clamped. Things. That is, the insulating pliers are used to grasp the object to be grasped with the tip of the grasping portion. (Refer to Patent Document 1) Prior art literature Patent literature

Patent Document 1: Japanese Patent Application Publication No. 7-298436

Summary of the invention Problems to be solved by the invention Conventional insulated pliers have the following problem when the object to be gripped is a wire with a very large diameter: the opening angle of the front end of the grip becomes larger, and the front end of the fixed grip and the front end of the movable grip When the angle is not facing each other, the grasped object cannot be grasped. In addition, the conventional insulated pliers did not envisage a situation in which the grasped object is grasped by sandwiching the central portion of the grasping portion. Therefore, when it is necessary to grasp a grasping object with a large diameter that cannot be grasped by the front end of the grasping part, it is necessary to prepare a larger insulating pliers, or prepare to grasp the grasping object by sandwiching the central part of the grasping part. The object is the so-called insulated quick lock.

Therefore, an object of the present invention is to provide a gripping tool that can be used to connect various gripping objects between the center portion and the front end portion of the grip portion. Means to solve the problem

The holding tool for indirect live wire construction of the present invention is a holding tool for indirect live wire construction having the following composition: an insulating and insulating operating stick having a length longer than a safe distance between the wire and the human body; , Has a movable holding part and a fixed holding part that are arranged at the front end of the insulating operating rod in the axial direction and are approached and separated by the operation of the holding operating part provided on the insulating operating rod; the insulating auxiliary insulating operating rod is auxiliary connected to The gripping part at the front end moves closer and farther away; and the gripping operating part is installed near the base end of the insulating operating rod and rotatably connected to the base end of the auxiliary insulating operating rod, and uses a lever to insulate the auxiliary The operating rod moves back and forth in the longitudinal direction to operate the grip. The fixed holding part is provided with: a base end connected to the tip of the insulated operating rod; a central part connected to the base end and formed in a convex substantially arc shape toward the outward direction of the plane including the axial direction of the insulated operating rod ; And the front end, connected to the central part. The central part of the fixed grip has a first concave portion that is recessed in the outward direction and a first convex portion that protrudes in the inward direction, and is formed on the inner side of the surface direction to abut the object to be grasped, and faces from the base end side The front end side is continuous and flexed or curved in the surface direction. The movable grip includes: a base end, which is rotatably connected to the tip of the auxiliary insulating operating rod; a central part, which is connected to the base end, and faces in the opposite direction to the convex direction of the central part of the fixed grip. The outward direction of the direction is formed in a convex arc shape; and the front end is connected to the central part, and the base end is accessible through the pivot so that the fixed holding part can be approached and separated by the operation of the holding operation part In this way, it is rotatably connected to the base end of the fixed grip. The central part of the movable grip portion has a first concave portion that is recessed in the outward direction and a first convex portion that protrudes in the inward direction, and is formed on the inner side of the surface direction that abuts against the object to be grasped, and faces from the base end side The front end side is continuous and flexed or curved in the surface direction. The front end of the movable grip and the front end of the fixed grip are formed to be substantially parallel when the front end of the movable grip contacts the front end of the fixed grip.

The holding tool for indirect live wire construction according to the present invention is provided with: an insulating insulating operating rod having a length longer than a safe distance between the wire and the human body; and a holding part having an axis provided on the insulating operating rod The front end of the direction, and the movable holding part and the fixed holding part that are approached and separated by the operation of the holding operating part provided on the insulated operating rod; the insulating auxiliary insulated operating rod assists the approaching and separating action of the holding part connected to the front end; And the holding operation part is installed near the base end of the insulated operating rod and rotatably connected to the base end of the auxiliary insulated operating rod, and leverages the auxiliary insulated operating rod to move back and forth in its length direction To operate the control part. In addition, since the front end of the movable grip and the front end of the fixed grip are formed so as to be substantially parallel when the front end of the movable grip comes into contact with the front end of the fixed grip, they can be gripped in an opposing state. Holds a relatively small diameter, plate-shaped or cloth-shaped object to be held.

In addition, the fixed grip portion includes: a base end connected to the tip of the insulated operating rod; a central part connected to the base end and formed into a convex substantially circle outward from the direction of the plane including the axial direction of the insulated operating rod Arc-shaped; and the front end portion, connected to the central portion, and the central portion of the fixed grip portion has a first concave portion recessed in the outward direction and a first convex portion protruding inwardly, and is formed on the inner side of the surface direction and the grasping object The part where the object abuts is a wave shape that is continuous from the base end side to the front end side and is bent or curved in the surface direction. Moreover, since the movable grip portion has: a base end portion, which is rotatably connected to the front end of the auxiliary insulating operating rod; a central portion, which is connected to the base end portion, and faces the convex direction opposite to the central portion of the fixed grip portion The direction, that is, the outward direction of the surface direction is formed into a convex arc shape; and the front end portion is connected to the central portion, and the base end portion is pivoted so that the gripping portion can be fixed by the operation of the gripping operation portion The approach and separation method is rotatably connected to the base end of the fixed grip. The central part of the movable grip has a first concave portion that is recessed in the outward direction and a first convex portion that protrudes in the inward direction, and is formed in the surface direction The part where the inner side of the gripping object is in contact with the object is continuous from the base end side to the front end side and bends or bends in the surface direction. Therefore, it can be placed between the central part of the fixed grip and the central part of the movable grip. In between, grasp the object with a relatively large diameter.

In detail, the first recess in the central portion of the fixed grip can be used to pull in a grasped object with a large diameter that cannot be grasped by the front end of the grip, and by fixing the center of the grip The first convex part of the part prevents the gripping object that has been drawn into the first concave part from escaping toward the tip side. In addition, the grasped object that has been drawn into the first recess of the fixed grasping portion is stably grasped in such a way that it approaches the center of the movable grasping portion of the fixed grasping portion by the operation performed by the grasping operation portion The first recessed portion of the portion is sandwiched by the first recessed portion of the fixed grip portion. In addition, the first concave portion of the fixed grip portion and the first concave portion of the movable grip portion hold the object to be gripped. The first convex portion of the central portion of the movable grip portion can also prevent the object to be gripped toward the front end. The situation of separation.

The holding tool for indirect thread construction of the present invention may be further configured as follows. That is, the central portion of the fixed grip portion further has a second concave portion, and the second concave portion is connected to the front end side of the first convex portion of the central portion of the fixed grip portion, and is recessed in the outward direction to form a curvature in the surface direction. Or a curved wave, the central part of the movable holding part further has a second recess. The second recess is connected to the front end side of the first convex part in the central part of the movable holding part, and is recessed in the outward direction and formed in the surface direction The wave of upward flexion or bending.

According to the holding tool for indirect live line construction of the present invention, it is possible to hold a grasping object with a relatively medium diameter between the second recessed portion provided in the central portion of the fixed holding portion and the second recessed portion provided in the central portion of the movable holding portion Things.

The holding tool for indirect thread construction of the present invention may be configured as follows. That is, a holding tool for indirect live wire construction, including: an insulating insulating operating rod having a length longer than a safe distance between the wire and the human body; and a holding part having an axis line provided on the insulating operating rod The front end of the direction, and the movable holding part and the fixed holding part that are approached and separated by the operation of the holding operating part provided on the insulated operating rod; the insulating auxiliary insulated operating rod assists the approaching and separating action of the holding part connected to the front end; And the holding operation part is installed near the base end of the insulated operating rod and rotatably connected to the base end of the auxiliary insulated operating rod, and leverages the auxiliary insulated operating rod to move back and forth in its length direction To operate the grip part, the fixed grip part has: a base end connected to the tip of the insulated operating rod; a central part connected to the base end and formed as a protrusion in the outward direction of the plane including the axial direction of the insulated operating rod It is roughly arc-shaped; and the front end, connected to the central part, the movable holding part is provided with: the base end is rotatably connected to the front end of the auxiliary insulating operating rod; the central part is connected to the base end and is fixed to the The convex direction of the central part of the gripping part is the opposite direction, that is, the outward direction of the surface direction is formed into a convex arc shape; and the front end part is connected to the central part, and the base end part can be made through a pivot. The fixed grip part is approached and separated by the operation of the grip operation part. It is rotatably connected to the base end of the fixed grip part. The front end of the movable grip and the front end of the fixed grip are formed in the movable grip. When the front end of the part is in contact with the front end of the fixed grip, it is substantially parallel. The front end of the fixed grip has a convex portion that protrudes inward and a concave portion that is concave outward, and forms a wave that is bent in the surface direction. The front end of the movable grip has a concave portion that is concave outward and a concave portion that protrudes inward. The convex part is formed as a wave that is bent in the surface direction. In addition, the convex part of the front end of the fixed grip and the concave part of the front end of the movable grip are in contact with the front end of the fixed grip at the front end of the movable grip The concave portion of the front end of the fixed holding portion and the convex portion of the front end of the movable holding portion engage with each other when the front end of the movable holding portion contacts the front end of the fixed holding portion.

According to the holding tool for indirect live line construction of the present invention, since the front end of the fixed holding portion has a convex portion protruding inward and a concave portion recessed in the outward direction, a wave that is bent in the surface direction is formed, and the tip of the movable holding portion The part has a concave part recessed in the outward direction and a convex part protruding inward, forming a wave shape that is bent in the surface direction. In addition, the convex part of the fixed grip part and the concave part of the movable grip part are in The tip of the movable grip is engaged when it comes into contact with the tip of the fixed grip, and the concave portion of the tip of the fixed grip and the convex portion of the tip of the movable grip are in contact with the fixed grip at the tip of the movable grip When the front end of the movable holding part is in contact with the front end of the fixed holding part, the front end of the movable holding part and the front end of the fixed holding part are formed to be approximately parallel when the front end of the movable holding part contacts the front end of the fixed holding part. The object is clamped from both sides, and the protrusions and recesses of the front end of the fixed grip and the recesses and protrusions of the front end of the movable grip are engaged. The cloth-like grip object can be put in and flexed into waves. Each convex and concave part of the shape does not slip away from the front end of the grip part and detach, so that it can be more firmly gripped. Invention effect

Therefore, according to the gripping tool for indirect live thread construction of the present invention, various gripping objects can be gripped at the center portion and the front end portion of the grip portion.

The form used to implement the invention Hereinafter, the gripping tool for the indirect line construction of the embodiment of the present invention will be described in detail with reference to the drawings. In addition, the directions or planes used in the description of the specification and the scope of the patent application are defined as follows. Set the direction orthogonal to or intersecting the axis of the insulating operating rod of the holding tool for indirect live wire construction and the direction close to the axis as the inward direction, and set the direction orthogonal to or crossing the axis of the insulating operating rod and away from it The direction of the axis is set to the outward direction. In addition, in the insulated operating rod, the end on the side gripped by the operator's hand is referred to as the base end, and the end on the side where the grip is provided as the tip end. The positional relationship between the base end and the distal end is the same in the entire gripping part or the gripping tool for indirect live line construction. In addition, a direction including the proximal direction or the distal direction passing through the axis of the insulated operating rod is referred to as the axis direction A. In addition, in the gripping portion having the movable grip portion and the fixed grip portion that can be approached and separated by the operation of the gripping operation portion, the direction of approach and separation is referred to as the B direction. In addition, the so-called surface V including the axial direction of the insulated operating rod is a surface defined by the axial direction of the insulated operating rod and the direction B intersecting the axial direction.

In addition, the embodiment shown below is only an example of realizing the present invention, and is not intended to limit the technical scope of the present invention.

As shown in FIG. 1, the holding tool 10 for indirect live wire construction includes: an insulated operating rod 14; a holding portion 12 provided at the tip of the insulated operating rod 14; and a holding operating portion 26 provided near the base end of the insulated operating rod 14. ; And the auxiliary insulating operating rod 24, which conveys the operation performed by the gripping operating portion 26 to the gripping portion 12. The gripping portion 12 has a movable gripping portion 20 and a fixed gripping portion 22. The gripping operation portion 26 is a member for operating the movable gripping portion 20 constituting the gripping portion 12 to move closer to and away from the fixed gripping portion 22 in the B direction. Hereinafter, each component is described in detail.

The insulating operating rod 14 is a cylindrical rod-shaped member made of an insulating material. Since the holding tool 10 for indirect live wire construction is a tool used for cutting work of pull-down wires of high-voltage power distribution lines, etc., the insulated operating rod 14 has a length longer than a safe distance between the wire and the human body. In order to avoid surface discharge or leakage, a rain shield 16 or a protective edge 18 is provided on the insulating operating rod 14. As described above, the gripping portion 12 is provided at the tip of the insulated operating rod 14, and the gripping operating portion 26 is provided near the base end of the insulated operating rod 14. The operator positions the grip 12 provided at the front end to the working position by insulating the operating rod 14. In addition, the operator handles the approach and distance operations of the grasping portion 12 by grasping the operation portion 26.

The auxiliary insulating operating rod 24 is made of the same material as the insulating operating rod 14, and similarly, a rain shield 16 or a rim 18 is provided to prevent leakage and creeping discharge. The tip part of the auxiliary insulating operating rod 24 is rotatably connected to the base end part 20a of the movable grip part 20 mentioned later. The base end of the auxiliary insulating operating rod 24 is rotatably connected to an operating piece 26e of the grip operating portion 26 described later. The auxiliary insulated operating rod 24 is arranged side by side with the insulated operating rod 14 and assists the approach and distance operation performed by the holding operating portion 26 of the holding portion 12 installed at the tip of the insulated operating rod 14. The tip part of the auxiliary insulating operating rod 24 is provided with a tip piece 25 to be rotatably connected to the base end part 20 a of the movable grip part 20.

As shown in FIGS. 2, 3, etc., the front end piece 25 is formed such that the front end 25b side is a substantially cylindrical body divided into two in a bifurcated manner from the middle, and the base end 25a side is an open substantially cylindrical shape, and It is formed to extend in the axial direction of the auxiliary insulating operating rod 24. The tip piece 25 is formed such that the inner diameter of the opening on the base end 25a side is the same as the diameter of the auxiliary insulating operating rod 24, and the tip of the auxiliary insulating operating rod 24 can be fitted into the opening on the base end 25a side. The tip piece 25 is formed so that the tip 25b side is cut into a concave shape in a side view so as to cross the radial direction from the tip 25b to the base end 25a. In addition, the tip piece 25 is formed with a rivet hole 25d near the tip 25b. The rivet hole 25d is opened so as to be orthogonal to the recessed notch and the center line passes in the radial direction. In addition, the tip piece 25 has a bolt hole 25c formed in the vicinity of the base end 25a, and the bolt hole 25c opens parallel to the rivet hole 25d, that is, the opening passes through in the radial direction with the center line. The front end piece 25 is fitted with the front end of the auxiliary insulating operating rod 24 from the base end 25a side, and a bolt 25e is inserted through the front end of the auxiliary insulating operating rod 24 from the bolt hole 25c, and is integrated with the auxiliary insulating operating rod 24化. In addition, the tip piece 25 aligns the rivet hole 25d with the base end portion 20a of the movable holding portion 20 located on the tip 25b side of the tip piece 25, the proximal side rivet hole 20e described later, and inserts the rivet 42 into the rivet hole 25d and The rivet hole 20e connects the movable holding portion 20 to the auxiliary insulating operating rod 24.

The gripping portion 12 is close to the gripping object 84 in the gripping tool 10 for indirect live line construction, and can be gripped by gripping the gripping object 84 at the front end, and gripping and holding the gripping object 84 at the center. The part of the object 84 is controlled. The grip 12 has a movable grip 20 and a fixed grip 22. The movable grip 20 connected to the insulated operating rod 14 extends from the base end 22a connected to the insulated operating rod 14 toward the auxiliary insulated operating rod 24, and extends upward on the side opposite to the insulated operating rod 14. On the other hand, the fixed holding portion 22 connected to the auxiliary insulating operating rod 24 extends from the base end a of the movable holding portion connected to the auxiliary insulating operating rod 24 toward the insulating operating rod 14 side, and also extends toward the insulating operating rod 14 Extend above. The movable grip portion 20 and the fixed grip portion 22 intersect with a pivot (pivot 30 described later) as the center, and form a gripping structure extending in a U-shape.

The fixed grip 22 is a member that constitutes the grip 12. The fixed holding portion 22 is formed of a hard material, such as a metal material. As shown in FIG. 4, the fixed holding portion 22 has: an inserting portion 15 for inserting the tip of the insulating operating rod 14, a base end 22a arranged on the tip side of the inserting portion 15, and a base end 22a arranged on the base end. The center part 22b on the front end side of the part 22a and the front end part 22c on the front end side of the center part 22b are arranged side by side. As shown in FIG. 4, in terms of the overall shape, the fixed holding portion 22 is inclined at about 45 degrees to the outside with respect to the axial direction A of the insulated operating rod 14, and is located on the surface V including the axial direction A of the insulated operating rod 14. The upper part is formed in a substantially circular arc shape convex in the outward direction, and from the base end 22a to the front end 22c, on the surface V including the axial direction A of the insulating operating rod 14 is formed to be gradually tapered. In addition, in FIG. 4, the surface V including the axial direction A of the insulated operating rod 14 is the same as the paper surface. As shown in FIG. 4, the surface V including the axial direction A of the insulating operating rod 14 is a longitudinal section extending from the front end portion 22c of the fixed grip portion 22 to the rear end portion of the base end portion 22a of the fixed grip portion A substantially uniform plane is a plane orthogonal to the width direction of the fixed grip 22.

As shown in FIG. 4, the fitting part 15 is formed so that the front end side may be closed, and it is integrally arranged in the base end part 22a, and it is formed so that the base end 15a side may open in a substantially cylindrical shape. The fitting portion 15 is formed such that the inner diameter of the opening on the base end 15a side is the same as the diameter of the insulating operating rod 14, and the tip portion of the insulating operating rod 14 can be fitted into the opening on the base end 15a side. The fitting part 15 is formed with a bolt hole 15c opened so that the center line passes in the radial direction (inside-outside direction) on the side surface forming the cylindrical surface. As shown in FIG. 3, the inserting portion 15 encloses the tip of the insulated operating rod 14 from the base end 15a side, and inserts a bolt 15e that penetrates the tip of the insulated operating rod 14 through the bolt hole 15c to operate with insulation The rod 14 is connected.

As shown in FIG. 3 and FIG. 4, the base end portion 22 a of the fixed grip portion 22 is arranged side by side in the fitting portion 15. As shown in FIG. 4, the base end portion 22a is formed to be inclined approximately 45 degrees toward the outer direction with respect to the axial direction A of the insulating operating rod 14. In addition, a bent portion 22av is formed, and the aforementioned bent portion 22av is formed from the base end portion 22a. It bends toward the outer direction midway, and it extends so that it may become approximately 90 degrees with respect to the axial direction A of the insulated operating rod 14. As shown in FIG. 4, the base end portion 22a is formed with a bolt hole 22d for allowing the bolt 30 to be rotatably connected to the movable holding portion 20 to pass through. The bolt hole 22d is in the vicinity of the flexion portion 22av and includes the insulating operating rod 14 A hole is made in the direction orthogonal to the plane V of the axial direction A.

As shown in FIG. 4, the central portion 22b is arranged side by side at the base end portion 22a, and is formed into a substantially circular arc shape that protrudes outward on a surface V including the axial direction A of the insulating operating rod 14. The central portion 22b is on the outer side surface, and is smoothly continuous with the base end portion 22a inclined by about 90 degrees with respect to the axial direction A of the insulating operating rod 14, and is gradually curved inwardly by changing the curvature. In addition, the central portion 22b is composed of four flat surfaces on the inner side surface, and the central portion first contact surface 221b, the central portion second contact surface 222b, and the contact surfaces for contacting the grasped object 84 are formed. The center part 3rd contact surface 223b and the center part 4th contact surface 224b.

For example, the central first contact surface 221b is a surface continuous from the inner side surface of the base end 22a and inclined outward with respect to the axial direction A of the insulating operating rod 14. In addition, the second central contact surface 222b is a continuous plane that is curved inwardly from the front end side edge of the first central contact surface 221b. The central third abutting surface 223b is a continuous surface that bends outward from the front end side edge of the central second abutting surface 222b. The fourth central contact surface 224b is a continuous surface that is curved inwardly from the front end side edge of the third central contact surface 223b. In addition, the central first contact surface 221b, the central second contact surface 222b, the central third contact surface 223b, and the central fourth contact surface 224b are formed relative to the axial direction including the insulated operating rod 14. The face V of A is orthogonal.

In addition, as shown in FIGS. 2, 3, and 4, the central portion 22b of the fixed grip 22 has a first concave portion 22b1s recessed in the outward direction, a first convex portion 22b1t protruding inwardly, and a first convex portion 22b1t that protrudes outwardly. The 2 recesses 22b2s are formed on the inner side of the surface V including the axial direction A in the part that abuts the object to be grasped 84, and is continuous from the base end 22a side to the distal end 22c side and is formed on the surface V including the axial direction A A wave of buckling or bending in a direction. The first concave portion 22b1s and the second concave portion 22b2s of the fixed grip portion 22 are sandwiched and wrapped with the first concave portion 20b1s and the second concave portion 20b2s of the central portion 20b described later of the movable grip portion 20. To grasp the part of the grasped object 84.

Specifically, the first recessed portion 22b1s is a portion formed by recessing the inner surface of the central portion 22b in the outward direction at a position on the proximal side or near the middle in the axial direction A of the central portion 22b of the fixed grip portion 22. For example, as shown in FIG. 4, the 1st recessed part 22b1s is a recessed part bent in an L shape, and this bending angle is about 134 degrees. With the first recess 22b1s, the inner surface of the central portion 22b changes the inclination in the outward direction to the inclination in the inward direction or the axial direction A. That is, the first recessed portion 22b1s is a connecting portion between the first contact surface 221b of the center portion and the second contact surface 222b of the center portion.

The first convex portion 22b1t is a portion formed continuously from the first concave portion 22b1s toward the inward direction or the axial direction A and toward the front end side by the inner surface of the central portion 22b protruding inward. For example, as shown in FIG. 4, the 1st convex part 22b1t is a convex part flexed in an L shape, and this flexion angle is about 114 degrees. With the first convex portion 22b1t, the inner surface of the central portion 22b changes the inclination in the inward direction or the axial direction A again to the inclination in the outward direction. That is, the first convex portion 22b1t is a connecting portion between the second central contact surface 222b and the central third contact surface 223b.

The second recessed portion 22b2s is a portion formed by recessing the inner surface of the central portion 22b in the outward direction in a position on the front end side in the axial direction A of the central portion 22b of the fixed grip portion 22. For example, as shown in FIG. 4, the 2nd recessed part 22b2s is a recessed part bent in an L shape, and this bending angle is about 137 degrees. Due to the second recess 22b2s, the inner surface of the central portion 22b changes the inclination in the outward direction to reduce the inclination angle, that is, to gently incline in the outward direction. That is, the second recessed portion 22b2s is a connecting portion between the central third abutting surface 223b and the central fourth abutting surface 224b.

The description will be made based on the relationship between the first concave portion 22b1s, the first convex portion 22b1t, and the second concave portion 22b2s, and a virtual plane C1 extending from the bolt hole 22d formed in the base end portion 22a toward the front end portion 22c. As shown in FIG. 4, the 1st recessed part 22b1s is located outside with respect to the virtual plane C1. On the other hand, the first convex portion 22b1t is located inside with respect to the virtual plane C1. In addition, the second concave portion 22b2s is located outside with respect to the virtual plane C1.

The front end 22c of the fixed grip 22 is a part that abuts on the object 84 to be gripped on its inside and is sandwiched between the front end 20c of the movable grip 20 that faces the object 84 to grip the object 84. As shown in FIG. 3 and FIG. 4, the front end part 22c is arranged in line with the center part 22b. The outer surface of the tip portion 22c is formed so that the base end side is smoothly continuous and arranged on the outer surface of the central portion 22b, and is slightly curved to the tip side in the outward direction, and faces outward with respect to the axial direction A of the insulated operating rod 14. The direction extends in the direction inclined by about 45 degrees.

3 and 4, the tip portion 22c has a tip portion contact surface 220c, and the tip portion contact surface 220c is on the tip side and has a plurality of grooves on the inside to contact the grasped object 84 surface. The tip portion contact surface 220c is a surface formed on the tip portion 22c along the virtual plane C1. In addition, in terms of its overall shape, the tip portion 22c becomes substantially parallel to the virtual plane C1.

In addition, as shown in FIGS. 3 and 4, the tip portion 22c has a convex portion 22ct protruding in the inward direction and a concave portion 22cs that is recessed in the outward direction, and is formed on the base end side and inwardly on the surface V including the axial direction A The wave of buckling in the direction. The convex part 22ct is a part which is arranged in line on the inner surface of the central part 22b and protrudes inwardly from the inner surface of the central part 22b. The concave portion 22cs is a portion that is arranged on the front end side of the convex portion 22ct, and is recessed in the outward direction than the front end portion contact surface 220c. The convex portion 22ct of the distal end portion 22c of the fixed grip 22 and the concave portion 20cs of the distal end 20c of the movable grip 20 described later engage when the distal end 20c of the movable grip 20 contacts the distal end 22c of the fixed grip 22 . At the same time, the concave portion 22cs of the front end portion 22c of the fixed grip portion 22 and the convex portion 20ct of the front end portion 20c of the movable grip portion 20 mesh when the front end portion 20c of the movable grip portion 20 contacts the front end portion 22c of the fixed grip portion 22 .

In detail, the convex portion 22ct of the front end portion 22c of the fixed grip portion 22 is composed of three surfaces that expand in the width direction of the fixed grip portion 22, and is formed by the convex portion inclined surface 22ct1 and the convex portion top surface. 22ct2 and the convex part perpendicular to the surface 22ct3. The convex portion vertical surface 22ct3 is a plane that extends inward from the front end edge of the inner surface of the central portion 22b to be orthogonal to the imaginary plane C1, and is a plane orthogonal to the plane V including the axial direction A. The convex portion top surface 22ct2 is a surface extending from the inner end edge of the convex portion vertical surface 22ct3 parallel to the imaginary plane C1, and is a surface orthogonal to the surface V including the axial direction A. The convex portion top surface 22ct2 is a surface constituting the top surface of the convex portion 22ct. The top surface 22ct2 of the convex portion is located on the inner side of the virtual plane C1. The convex portion inclined surface 22ct1 is a surface extending from the distal end side edge of the convex portion top surface 22ct2 in the outward direction and in the distal direction, and is a surface orthogonal to the surface V including the axial direction A. The convex portion inclined surface 22ct1 is a surface for causing the convex portion 22ct to gradually protrude inward when viewed from the front end side. Thereby, when the cloth-like gripping object 84 is inserted from the front end side of the gripping portion 12 and the gripping portion 12 is intended to grip the cloth-like gripping object 84, it is possible to prevent the edge of the cloth-like gripping object 84 from jamming In the convex part 22ct, it becomes impossible to insert into the central part of the grasping part 12. The front end side edge of the convex portion inclined surface 22ct1 is located outside the virtual plane C1.

In addition, the concave portion 22cs of the front end portion 22c of the fixed grip portion 22 is constituted by two surfaces extending in the width direction of the fixed grip portion 22, and is constituted by the concave portion inclined surface 22cs1 and the concave portion bottom surface 22cs2. The concave portion bottom surface 22cs2 is a surface extending from the distal end side edge of the convex portion inclined surface 22ct1 in the distal direction along the virtual plane C1, and is a surface orthogonal to the surface V including the axial direction A. The recessed portion bottom surface 22cs2 is located on the outer side than the virtual plane C1. The recessed portion inclined surface 22cs1 is a surface extending inwardly from the distal end side edge of the recessed portion bottom surface 22cs2 and in the distal direction, and is a surface orthogonal to the surface V including the axial direction A. The front end side edge of the recessed portion inclined surface 22cs1 is located on the virtual plane C1. In addition, the distal end side edge of the recessed portion inclined surface 22cs1 is connected to the distal end contact surface 220c.

Moreover, as shown in FIG. 2, a long hole 22 g is formed in the fixed grip portion 22. The long hole 22g extends along the direction orthogonal to the extending direction of the bolt 30, that is, the plane V including the axial direction A of the insulating operating rod 14, and is a hole that continues from the base end 22a to the front end side of the center 22b And pass through the holes on the inner and outer sides. As shown in FIG. 2, the long hole 22g is a hole for allowing the movable gripping portion 20 to be movably inserted through the base end portion 20a described later in the fixed gripping portion 22.

The movable grasping portion 20 is a member constituting the grasping portion 12, and is configured to approach and separate from the fixed grasping portion 20 in the B direction shown in FIG. 1 by the operation of the grasping operation portion 26 provided on the insulated operating rod 14. The movable holding portion 20 is formed of a hard material, such as a metal material. As shown in FIG. 5, the movable grip part 20 has the base end part 20a, the center part 20b arrange|positioned at the front end side of the base end part 20a, and the front end part 20c arrange|positioned at the front end side of the center part 20b. In terms of the overall shape, the movable holding portion 20 is formed on the surface V including the axial direction A of the insulating operating rod 14 and is formed to be convex in the opposite direction to the convex direction of the overall shape of the fixed holding portion 22 It is substantially arc-shaped, and is formed on the surface V including the axial direction A of the insulating operating rod 14 so as to gradually taper from the base end portion 20a to the distal end portion 20c. In addition, in FIG. 5, the surface V including the axial direction A of the insulated operating rod 14 is the same as the paper surface. As shown in FIG. 5, the surface V including the axial direction A of the insulating operating rod 14 is expanded from the front end portion of the movable grip portion 20C of the movable grip portion 20 to the rear end portion of the base end portion 20a of the movable grip portion 20 The vertical cross-section of the portion is a plane that is almost the same, and is a plane that is orthogonal to the width direction of the movable grip portion 20.

As shown in FIGS. 1, 2, and 3, the base end portion 20 a of the movable grip portion 20 is connected to the tip of the auxiliary insulating operating rod 24. Although not specifically shown in the figure, specifically, the base end portion 20a is a recessed notch formed at the front end 25b of the tip piece 25 of the auxiliary insulating operating rod 24 by sandwiching the base end 20f thereof. In addition, the base end portion 20a is connected to the auxiliary insulating operating rod 24 by a rivet 42 which is inserted in the vicinity of the base end 20f of the movable holding portion 20 to be orthogonal to the axial direction A of the insulating operating rod 14. The base end side rivet hole 20e is drilled in the direction of the second, and the rivet hole 25d is drilled in the tip 25 of the auxiliary insulating operating rod 24. That is, the base end portion 20a is rotatably connected to the tip of the auxiliary insulating operating rod 24. In addition, the base end portion 20a is formed in the vicinity of the base end 20f and becomes thinner in the direction orthogonal to the plane V including the axial direction A, that is, the width direction, that is, the direction through which the rivet 42 is inserted. As shown in FIG. 5, the base end part 20a is formed in the surface V which contains the axial direction A of the insulated operation rod 14, and is bent in a C shape from the base end 20f toward the front end direction of this axial direction A. As shown in FIG. 5, the base end portion 20a is near the center, and a bolt hole 20d is bored in a direction orthogonal to the axial direction A of the insulating operating rod 14. The bolt hole 20d is for turning the movable grip 22 The bolt 30 movably connected to the fixed grip 22 is formed by passing it.

As shown in FIG. 5, the central portion 20b is connected to the base end portion 20a, and faces the direction opposite to the convex direction of the central portion 22b of the fixed holding portion 22 on the surface V including the axial direction A of the insulating operating rod 14 That is, the outward direction is formed into a convex arc shape. The center portion 20b is connected to the base end portion 20a on the outer side surface so as to draw a smooth arc, and is further bent into a C shape while changing the direction from the front end direction of the axial direction A of the insulating operating rod 14 toward the inward direction. In addition, the center portion 20b has a center portion first abutment surface 201b and a center portion second abutment surface 202b2 formed on the inner surface of the center portion 20b as abutting surfaces for abutting against the grasped object 84. In addition, the central portion 20b is formed thicker than the base end portion 20a formed thinner in the direction perpendicular to the plane V including the axial direction A, that is, the width direction, and is formed so as to have a central fixed grip 22 The thickness of the part 22a is the same thickness.

For example, the first contact surface 201b of the center portion is continuous from the inner surface of the base end portion 20a and has a curvature greater than that of the outer surface of the center portion and is curved inward. Although the central second contact surface 202b is arranged on the central first contact surface 201b, it is slightly bent or bent in the outward direction or the axial direction A with respect to the front end side edge of the central first contact surface 201b. Arrange the set faces. In addition, the second central contact surface 202b is a surface that has a smaller curvature than the central first contact surface 201b and is curved inward. In addition, the central first contact surface 201 b and the central second contact surface 202 b are formed so as to be orthogonal to the surface V including the axial direction A of the insulating operating rod 14.

In addition, as shown in FIGS. 2, 3, and 5, the central portion 20b of the movable grip portion 20 has a first concave portion 20b1s recessed in the outward direction, a first convex portion 20b1t protruding inwardly, and a first convex portion 20b1t that projects outwardly. The 2 recesses 20b2s are formed on the inner side of the surface V including the axial direction A in the part that abuts the object to be grasped 84, and is continuous from the base end 22a side to the distal end 22c side and is formed on the surface V including the axial direction A A wave of buckling or bending in a direction. The first concave portion 20b1s and the second concave portion 20b2s of the central portion 20b of the movable grip portion 20 are sandwiched between the first concave portion 22b1s and the second concave portion 22b2s of the fixed grip portion 22 facing each other, and are used to grip the object Part of 84.

Specifically, the first recessed portion 20b1s is a portion formed by recessing the inner surface of the central portion 20b toward the outer direction at a position on the proximal side or near the middle in the axial direction A of the central portion 20b of the movable grip portion 20. For example, as shown in FIG. 5, the first concave portion 20b1s is a concave portion bent into a U-shape, and its radius of curvature is approximately 46 mm, and the angle of the arc formed by the radius of curvature is approximately 136 degrees. With the first recessed portion 20b1s, the inner surface of the central portion 20b changes the inclination in the outward direction to the inclination in the inward direction or the axial direction A. That is, the first recessed portion 20b1s is a recessed portion formed by the first contact surface 201b of the center portion.

The first convex portion 20b1t is continuous from the first concave portion 20b1s toward the inner direction or the axial direction A and toward the front end side, and is a portion formed by the inner surface of the center portion 20b protruding inward. For example, as shown in FIG. 5, the 1st convex part 20b1t is a convex part bent in a U shape. With the first convex portion 20b1t, the inner surface of the central portion 20b changes the inclination in the inward direction or the axial direction A again to the inclination in the outward direction. In other words, the first convex portion 20b1t is a connecting portion between the first contact surface 201b of the center portion and the second contact surface 202b of the center portion.

The second recessed portion 20b2s is a position on the front end side in the axial direction A of the central portion 20b of the movable grip portion 20, and is formed by recessing the inner surface of the central portion 20b in the outward direction. For example, as shown in FIG. 5, the second concave portion 20b2s is a concave portion bent into a U-shape, the radius of curvature is about 50 mm, and the angle of the arc formed by the radius of curvature is about 38 degrees. With the second recessed portion 20b2s, the inner surface of the central portion 20b changes the inclination in the outward direction to the inclination in the inward direction or the axial direction A. That is, the second recessed portion 20b2s is a recessed portion formed by the second contact surface 202b in the center portion.

The description will be made based on the relationship between the first concave portion 20b1s, the first convex portion 20b1t, and the second concave portion 20b2s, and a virtual plane C2 extending from the bolt hole 20d formed in the base end portion 20a toward the distal end portion 20c. As shown in FIG. 5, any one of the 1st recessed part 20b1s, the 1st convex part 20b1t, and the 2nd recessed part 20b2s is located outside with respect to the virtual plane C2.

The front end portion 20c of the movable grasping portion 20 is a portion that abuts on the grasped object 84 on the inside thereof and is sandwiched between the front end 22c of the fixed grasping portion 22 facing each other to grasp the grasped object 84. As shown in FIG. 5, the front-end|tip part 20c is arranged in a row in the center part 20b. The outer surface of the front end portion 20c is formed such that the base end side is smoothly continuous and arranged on the outer surface of the central portion 20b, and is slightly curved to the front end side in the outward direction.

3 and 5, the tip portion 20c has a tip portion abutting surface 200c, the tip portion abutting surface 200c is on the tip side and has a plurality of grooves on the inside to contact the grasped object 84 surface. The tip contact surface 200c is a surface formed on the tip 20c along the virtual plane C2. In addition, in terms of its overall shape, the tip portion 20c becomes substantially parallel to the virtual plane C2.

In addition, as shown in FIGS. 3 and 5, the distal end portion 20c has a concave portion 20cs that is recessed in the outward direction and a convex portion 20ct that projects in the inward direction, and is formed on the base end side and inside on a surface including the axial direction A The waveform of buckling in the V direction. The recesses 20cs are arranged on the inner surface of the central portion 20b, for example, the central second abutting surface 202b, and are recessed in the outward direction than the inner surface of the central portion 20b and the front end abutting surface 200c. The convex portion 20ct is a portion arranged in a row on the front end side of the concave portion 20cs and protruding inward from the front end abutting surface 200c. The concave portion 20cs of the front end portion 20c of the movable grip portion 20 and the convex portion 22ct of the front end portion 22c of the fixed grip portion 22 mesh when the front end portion 20c of the movable grip portion 20 contacts the front end portion 22c of the fixed grip portion 22. At the same time, the convex portion 20ct of the front end portion 20c of the movable grip portion 20 and the concave portion 22cs of the front end portion 22c of the fixed grip portion 22 mesh when the front end portion 20c of the movable grip portion 20 contacts the front end portion 22c of the fixed grip portion 22 .

Specifically, the concave portion 20cs of the tip portion 20c of the movable grip portion 20 is constituted by two surfaces that extend in the width direction of the movable grip portion 20, and is constituted by the concave portion inclined surface 20cs2 and the concave portion bottom surface 20cs1. The recessed portion inclined surface 20cs2 is a surface extending from the inner side surface of the central portion 20b, for example, the distal end side edge of the central portion second contact surface 202b, in the distal direction and outward, and is perpendicular to the surface V including the axis direction A surface. The recessed portion bottom surface 20cs1 is a surface extending from the outer edge of the recessed portion inclined surface 20cs2 in parallel to the virtual plane C2, and is a surface orthogonal to the surface V including the axial direction A. The recessed portion bottom surface 20cs1 is located on the outside of the virtual plane C2.

In addition, the convex portion 20ct of the distal end portion 20c of the movable grip portion 20 is constituted by three surfaces that expand in the width direction of the movable grip portion 20, and is composed of a convex portion vertical surface 20ct3, a convex portion top surface 20ct2, and The convex portion is formed with an inclined surface 20ct1. The convex portion vertical surface 20ct3 is a surface that extends inward from the front end edge of the concave portion bottom surface 20cs1 to be orthogonal to the virtual plane C2, and is a plane orthogonal to the surface V including the axis direction A. The convex portion top surface 20ct2 is a surface extending from the inner end edge of the convex portion vertical surface 20ct3 in parallel to the imaginary plane C2, and is a surface orthogonal to the surface V including the axial direction A. The convex portion top surface 20ct2 is a surface constituting the top surface of the convex portion 20ct. The top surface 20ct2 of the convex portion is located on the inner side of the virtual plane C2. The convex portion inclined surface 20ct1 is a surface extending from the distal end side edge of the convex portion top surface 20ct2 in the outward direction and in the distal direction, and is a surface orthogonal to the surface V including the axial direction A. The convex portion inclined surface 20ct1 is a surface for causing the convex portion 20ct to gradually protrude inward when viewed from the tip side. Thereby, when the cloth-like gripping object 84 is inserted from the front end side of the gripping portion 12 and the gripping portion 12 is intended to grip the cloth-like gripping object 84, it is possible to prevent the edge of the cloth-like gripping object 84 from jamming In the convex part 20ct, it becomes impossible to insert into the central part of the grip part 12. The tip side edge of the convex portion inclined surface 20ct1 is located on the virtual plane C2. In addition, the distal end side edge of the convex portion inclined surface 20ct1 is connected to the distal end contact surface 200c.

Furthermore, as shown in FIG. 2, an elongated hole 20g is formed in the movable holding portion 20. The elongated hole 20g extends in a direction orthogonal to the extending direction of the bolt 30, that is, a plane V including the axial direction A of the insulating operating rod 14. . The elongated hole 20g is a hole that is continuous from the base end side to the front end side of the central portion 20b and penetrates the inner surface and the outer surface. The elongated hole 20g is a hole for reducing the weight of the movable holding part 20 and the holding tool 10 for indirect thread construction. An elongated hole 22g is formed in the central portion 22b of the fixed holding portion 22, and an elongated hole 20g is formed in the central portion 20b of the movable holding portion 20. However, since the central portion 22b of the fixed grip portion 22 and the central portion 20b of the movable grip portion 20 are formed with the same thickness in the width direction, that is, in the direction orthogonal to the plane V including the axis direction A, the fixed The inner surface of the central portion 22b of the grip 22, namely the central first contact surface 221b, the central second contact surface 222b, the central third contact surface 223b, and the central fourth contact surface 224b, are in contact with the movable grip The inner side surfaces of the central portion 20b of the portion 20, that is, the central first abutting surface 201b and the central second abutting surface 202b face each other and have an area sufficient to grasp the grasped object 84.

As shown in FIG. 2, the movable grip portion 20 is in the grip portion 12, from the inner side to the outer side, the base end 20f of the movable grip portion 20 is inserted into the long hole 22g of the fixed grip portion 22, and the bolt of the movable grip portion 20 The hole 20 d and the bolt hole 22 d of the fixed grip portion 22 overlap on the surface V including the axial direction A of the insulated operating rod 14 and are arranged in the fixed grip portion 22. In addition, the movable holding portion 20 uses bolts 30 and nuts (unsigned) inserted into the overlapped bolt holes 20d and 22d to be rotatable in the direction B of FIG. 1 with respect to the fixed holding portion 22 And it is connected to the fixed holding part 22 so that it can approach and separate. At this time, the bolt 30 functions as a pivot when the movable grip portion 20 rotates to the fixed grip portion 22. That is, the base end portion 20a is connected to the base end portion 22a of the fixed grip portion 22 through the bolt 30 as a pivot, and the movable grip portion 20 is operated relative to the fixed grip portion 22 by the operation of the grip operation portion 26 It can be rotated in the B direction and can be approached and far away.

As shown in Fig. 1, the gripping operation portion 26 is provided near the base end of the insulated operation rod 14, and has an operation lever 26a, a supporting metal fitting 26b, a release lever 26c, an operation rotating shaft 26d, and an operating piece 26e. On the supporting metal part 26b, the operating rod 26a is pivotally supported by an operating rotating shaft 26d. The operating piece 26e protruding to the same side as the operating rod 26a is rotatably connected to the base end of the auxiliary insulating operating rod 24. Therefore, when the operator performs an operation to hold the operating rod 26a, the auxiliary insulated operating rod 24 is pulled downward due to the action of the lever, and the movable grip 20 is moved toward the fixed grip with the bolt 30 as the center. 22 closed.

In addition, between the supporting metal part 26b and the operating lever 26a, a spring 28 that imparts potential energy in the direction to open the operating lever 26a is installed. When the operator does not operate the operating lever 26a, the operating lever 26a becomes the open state, accompanied by Thus, the movable grip portion 20 is also maintained in an open state separated from the fixed grip portion 22.

The support metal fitting 26b is provided with a lock mechanism. Since this lock mechanism is a well-known mechanism, it will be briefly described below. The lock mechanism is provided with: a bearing-shaped one-way clutch (not shown) using a roller (not shown) attached to the fulcrum position of the lever of the operating lever 26a, and a rotating shaft 26d for operation that supports the one-way clutch , And a plurality of locking mechanisms (not shown) for fixing/opening the rotation of the rotating shaft 26d for operation at arbitrary positions. Although the illustration is omitted, this locking mechanism is provided with a locking gear fixed to the operating rotating shaft 26d, a locking pin to lock the locking gear, and a locking pin to apply potential energy to the locking gear. The release lever 26c that pushes up the pin of the locking pin to release the locking of the locking pin, the lever support shaft that rotatably supports the release lever 26c, and the release lever 26c is held in the unlocked position Or an open unlocking knob and a knob support shaft that rotatably supports the unlocking knob.

In addition, when the locking mechanism is set at the open position and the lock mechanism is opened, the operating rotating shaft 26d becomes freely rotatable, and the function of the one-way clutch becomes irrelevant to the operation of the operating lever 26a. The operating lever 26a rotates freely, 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 opened and closed in response to the switching operation of the operating lever 26a. On the other hand, when the locking mechanism is set at the locking position to make the locking mechanism work, the operating rotary shaft 26d is locked, and by the action of the one-way clutch, the operating lever 26a can only face In the closing direction, that is, it can only be rotated by pulling the auxiliary insulating operating rod 24 downward, and the operating rod 26a can be locked at any position without segmentation.

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, and the movable grip 20 is locked in response to the operation through the auxiliary insulated operating rod 24. The state in the position of the closed position of the lever 26a. At this time, regardless of the size of the grasped object 84, the operator only needs to release his hand from the operating lever 26a at the point in time when it is determined that the force suitable for the work has been used to grasp the grasped object 84. In this state, the operating lever 26a is directly locked.

As shown in FIG. 8, by the operation of the grip operation portion 26, the tip portion 20c of the movable grip portion 20 is rotated in the direction B of FIG. 1 with the bolt 30 as the center, and contacts the tip portion 22c of the fixed grip portion 22. The front end contact surface 200c of the front end portion 20c of the movable grip portion 20 is located on the virtual plane C2 and is parallel to the virtual plane C2. The front end contact surface 220c of the front end portion 22c of the fixed grip portion 22 is located on the virtual plane C1 and is parallel to the virtual plane C1. In addition, when the front end portion 20c of the movable grip portion 20 contacts the front end portion 22c of the fixed grip portion 22, the virtual plane C1 and the virtual plane C2 overlap. In addition, the tip portion contact surface 220c and the tip portion contact surface 200c are parallel to the virtual plane C1 and the virtual plane C2 that have overlapped. That is, the front end portion 20c of the movable grip portion 20 and the front end portion 22c of the fixed grip portion 22 are formed so as to be substantially parallel when the front end portion 20c of the movable grip portion 20 contacts the front end portion 22c of the fixed grip portion 22. The virtual plane C1 is a plane that expands in the width direction of the fixed grip 22. The virtual plane C2 is a plane that expands in the width direction of the movable grip portion 20.

(Using status and effect) Next, the use state and effects of the gripping object 84 for the gripping tool 10 for indirect live thread construction will be explained based on FIGS. 6 to 8. Fig. 6 is a front view showing how a gripping object with a relatively large diameter is gripped at the center of the gripping part of the gripping tool for indirect thread construction of the present invention. Fig. 7 is a front view showing how a gripping object with a relatively medium diameter is gripped at the center of the gripping part of the gripping tool for indirect thread construction of the present invention. Fig. 8 is a front view showing how a cloth-shaped grasped object is held at the tip of the grasping part of the holding tool for indirect thread construction of the present invention.

As shown in FIG. 6, when the gripping tool 10 for indirect live wire construction is to grip an object 84 with a relatively large diameter, such as a wire 84 with a large diameter, the movable grip portion 20 is separated from the fixed grip portion 22 Remote configuration. At this time, the following situation can be formed: the central portion 20b of the movable grip portion 20 and the central portion 22b of the fixed grip portion 22 form a substantially closed area T1, and the grasped object 84 is enclosed in this substantially closed area T1 controls the grasped object 84.

In detail, it is the concave curved surface formed by the central first abutting surface 201b of the central portion 20b of the movable holding portion 20, and the central first abutting surface 221b and the central first abutting surface 221b of the central portion 22b of the fixed holding portion 22 2 The abutting surface 222b becomes a facing position. In addition, the central first abutting surface 201b, the central first abutting surface 221b, and the central second abutting surface 222b are in contact with the side surface of the grasping object 84 with a relatively large diameter in the cross-sectional view angle, and become stable A state in which a grasped object 84 having a relatively large diameter is grasped. At this time, the central first abutment surface 201b, the central first abutment surface 221b, and the central second abutment surface 222b form a substantially closed area T1 inside the grip 12, and are substantially closed here The state where the grasped object 84 is closed in the area T1.

In other words, the above-mentioned effect can be used to pull the grasping object 84 with a large diameter that cannot be grasped by the front end of the grasping portion 12 into the first recess 22b1s of the central portion 22b of the fixed grasping portion 22 In addition, by fixing the first convex portion 22b1t of the central portion 22b of the grip portion 22, it is possible to prevent the gripping object 84 that has been drawn into the first concave portion 22b1s from escaping toward the tip side. In addition, the grasped object 84 that has been drawn into the first recess 22b1s of the fixed grasping portion 22 is stably grasped in such a way that it approaches the fixed grasping portion 22 by the operation performed by the grasping operation portion 26 The first recessed portion 20b1s of the central portion 20b of the movable grip portion 20 is sandwiched by the first recessed portion 22b1s of the fixed grip portion 22. In addition, the object 84 to be gripped by the first concave portion 22b1s of the fixed grip portion 22 and the first concave portion 20b1s of the movable grip portion 20 is also provided by the first convex portion 20b1t of the central portion 20b of the movable grip portion 20 It is possible to prevent the grasped object 84 from detaching toward the tip side.

Furthermore, as shown in FIG. 7, in the case where the holding tool 10 for indirect live wire construction is to hold a relatively medium-diameter object 84, for example, when a medium-diameter wire 84 is gripped, the movable grip 20 becomes a fixed grip Section 22 is slightly away from the configuration. At this time, the following situation may be formed: between the central portion 20b of the movable grip portion 20 and the central portion 22b of the fixed grip portion 22, a substantially closed area T2 is formed, and the grasped object 84 is enclosed in this substantially closed area T2 to grasp the grasped object 84.

In detail, it is a concave curved surface formed by the second abutting surface 202b of the center portion 20b of the movable grip portion 20, and the third abutting surface 223b of the center portion 22b of the fixed grip portion 22 and the second abutting surface 202b of the center portion The 4-abutting surface 224b becomes a facing position. In addition, the central second abutting surface 202b, the central third abutting surface 223b, and the central fourth abutting surface 224b are in contact with the side surface of the grasping object 84 with a relatively medium diameter in a cross-sectional view, and become stable A state in which a grasped object 84 having a relatively medium diameter is grasped. At this time, the second central abutment surface 202b, the third central abutment surface 223b, and the fourth central abutment surface 224b form a substantially closed area T2 inside the gripping portion 12, and are substantially closed here. The state where the grasped object 84 is closed in the area T2.

In other words, the above-mentioned function can be used to pull the grasped object 84 with a relatively medium diameter into the second recess 22b2s of the central portion 22b of the fixed grasping portion 22, and by fixing the front end of the grasping portion 22 The convex portion 22ct of the portion 22c prevents the object to be grasped 84 pulled into the second concave portion 22b2s from escaping to the tip side. In addition, the grasped object 84 that has been drawn into the second recess 22b2s of the fixed grasping portion 22 is stably grasped in such a way that it is approached to the fixed grasping portion 22 by the operation performed by the grasping operation portion 26 The second recessed portion 20b2s of the central portion 20b of the movable grip portion 20 is sandwiched by the second recessed portion 22b2s of the fixed grip portion 22.

In addition, in the case of the holding tool 10 for indirect live thread construction, it is necessary to hold a relatively small diameter, plate-like or cloth-like holding object 84, for example, in the case of holding a sheet/cover 84 as shown in FIG. 8, the movable holding portion 20 is arranged close to or in contact with the fixed grip 22. At this time, a situation may be formed in which the front end portion 20c of the movable grip portion 20 is clamped between the front end portion 22b of the fixed grip portion 22 to grip the object 84 to be gripped.

In detail, in the case where the gripping tool 10 for indirect live line construction is to grip the sheet/cover 84, the front end portion 20c of the movable grip portion 20 is between the front end portion abutment surface 200c and the front end portion 22c of the fixed grip portion 22 The tip portion abutting surface 220c is close to each other, and the mutual surfaces become parallel and face each other. In addition, the front end abutting surface 200 c and the front end abutting surface 220 c abut on both surfaces of the sheet/cover 84, and clamp the sheet/cover 84 to the front end of the grip 12. In addition, the sheet/cover 84 is in the following form: the convex portion 20ct that enters the tip portion 20c of the movable grip portion 20 that engages, the concave portion 22cs of the tip portion 22c of the fixed grip portion 22, and the movable movable The concave portion 20cs of the front end portion 20c of the grip portion 20 and the convex portion 22ct of the front end portion 22c of the fixed grip portion 22 are fixed. In addition, since the concave portion 20cs and convex portion 20ct of the distal end portion 20c of the movable grip portion 20 and the convex portion 22ct and concave portion 22cs of the distal end portion 22c of the fixed grip portion 22 are each formed in a wave shape that is bent in the surface direction, the pieces that have entered The material/cover 84 buckles along the wave.

Thereby, the front end portion 20c of the movable grip portion 20 and the front end portion 22c of the fixed grip portion 22 can clamp the sheet/cover 84 from both sides, and the projections of the front end portion 22c of the fixed grip portion 22 that engage The portion 22ct and the concave portion 22cs and the concave portion 20cs and the convex portion 20ct of the distal end portion 20c of the movable grip portion 20 can be placed in each convex portion and concave portion of the sheet/cover 84 that are bent into a wave shape without being removed from the grip portion 12. The front end slips away from the way to strengthen the grip.

Furthermore, although not shown in the figure, the gripping tool 10 for indirect thread construction may be at the tip of the grip 12, that is, before the tip 22c of the fixed grip 22. The end abutting surface 220c and the tip of the movable grip 20 Between the front end portion abutting surfaces 200c of the portion 22c, a grasping object 84 having a relatively small diameter or a plate shape is clamped and grasped.

Therefore, according to the gripping tool 10 for indirect thread construction, various gripping objects 84 can be gripped at the center portion and the front end portion of the gripping portion 12. In particular, the above-mentioned effect is particularly remarkable for the gripping tool for indirect live wire constructions where the front end portion 20c of the movable grip portion 20 and the front end portion 22c of the fixed grip portion 22 cannot cross, that is, the so-called insulating pliers.

(Modification) This invention is not limited to the aforementioned embodiment, and various changes can be made based on the idea of this invention. Hereinafter, other embodiments of the present invention will be described.

In the foregoing embodiment, although the rain shield 16 and the rim 18 are provided at approximately the middle of the insulating operating rod 14, the rain shield 16 and the rim 18 are constituent elements for preventing creeping discharge or electric leakage. Therefore, even if it is provided in the structure which does not provide the rain shield 16 and the rim 18 in the insulated operating rod 14 of the holding tool 10 for indirect live-wire works, the effect of this invention can be acquired similarly to the said embodiment.

In addition, for example, the rivet 42 which is a structure that rotatably connects the movable grip 20 and the auxiliary insulating operating rod 24 may be a structure composed of a bolt and a nut so that it can be easily connected and released.

In addition, as another embodiment of the present invention, the gripping tool 10A for indirect link construction may be formed as shown in FIG. 9. That is, in the grip 12, the central portion 22b of the fixed grip 22 may have a first recess 22Ab1s that is recessed in the outward direction, a first protrusion 22Ab1t that protrudes in the inward direction, and a second recess that is recessed in the outward direction. 22Ab2s, which is formed on the inner side of the surface V direction including the axis direction A, which abuts on the object to be grasped 84, and is continuous from the base end side to the tip side and is curved in the surface V direction including the axis direction A Waveform; the central portion 20b of the movable grip portion 20 may have a first concave portion 20Ab1s recessed in the outward direction, a first convex portion 20Ab1t projecting inwardly, and a second concave portion 20Ab2s recessed in the outward direction, and formed in the axis including the axis The part of the surface V in the direction A that abuts against the object to be grasped 84 is a waveform that is continuous from the proximal end side to the distal end side and bends in the surface V direction including the axial direction A. In addition, the front end portion 22c of the fixed grip portion 22 may also be constituted by a concave portion 22Acs connected to the front end side of the central portion 22b and a convex portion 22Act connected to the front end side of the concave portion 22Acs, as may the front end portion 20c of the movable grip portion 20 It can be comprised by the convex part 20Act connected to the front-end side of the center part 20b, and the concave part 20Acs connected to the front-end side of the convex part 20Act. The concave portion 22Acs of the front end portion 22c of the fixed grip portion 22 is formed by the concave portion inclined surface 22Acs2 and the concave portion bottom surface 22Acs1, and the convex portion 22Act is formed by the convex portion vertical surface 22Act3, the convex portion top surface 22Act2, and the convex portion inclined surface 22Act1. . The convex portion 20Act of the front end portion 20c of the movable grip portion 20 is formed by a convex portion vertical surface 20Act3, a convex portion top surface 20Act2, and a convex portion inclined surface 20Act1. The concave portion 20Acs is formed by a concave portion bottom surface 20Acs2 and a concave portion inclined surface 20Acs1. .

According to the gripping tool 10A for indirect live thread construction, it is possible to hold various grips at the center and front ends of the gripping portion 12 with relatively the same effects as the gripping tool 10 for indirect live thread construction in the foregoing embodiment. Object 84.

As described above, although the embodiments of the present invention have been disclosed in the foregoing description, the present invention is not limited to these. That is, to the embodiments described above, various changes can be made regarding the mechanism, shape, material, number, position, arrangement, etc., without departing from the technical idea and purpose of the present invention, and so on. All are included in the present invention.

10.10A: Control tool for indirect live line fortifications 12: Control Department 14: Insulated operating rod 15: The embedded part of the fixed grip part 15a: The base end of the embedded part 15c: Bolt hole of the embedded part 15e: Bolt of embedded part 16: rain block 18: Guardian 20: Movable grip 20a: The base end of the movable grip 20Ab1s: The first recess 20Ab1t: 1st convex part 20Ab2s: 2nd recess 20Acs: The concave part of the front end of the fixed grip 20Acs1: bottom surface of recess 20Acs2: Concave inclined surface 20Act: The convex part of the front end of the movable grip 20Act1: Convex inclined surface 20Act2: Top surface of convex part 20Act3: Vertical surface of convex part 20b: The central part of the movable grip 20b1s: The first recess in the center of the movable grip 20b1t: The first convex part of the central part of the movable grip 20b2s: The second recess in the center of the movable grip 201b: The first abutment surface in the center 202b: The second abutment surface of the central part 20c: The tip of the movable grip 20ct: The convex part of the front end of the movable grip 20ct1: Convex inclined surface 20ct2: top surface of convex part 20ct3: Vertical surface of convex part 20cs: The concave part of the front end of the movable grip 20cs1: bottom surface of recess 20cs2: concave slope 200c: Abutment surface of the tip of the movable grip 20d: Bolt hole of the movable grip 20e: Rivet hole on the proximal side of the movable grip 20f: The base end of the movable grip 20g: Long hole in the movable grip 22: fixed grip 22a: Fix the base end of the grip 22Ab1s: The first recess 22Ab1t: 1st convex part 22Ab2s: 2nd recess 22av: The flexion of the base end of the fixed grip 22Acs: The recess of the front end of the fixed grip 22Acs1: Concave inclined surface 22Acs2: bottom surface of recess 22Act: The convex part of the front end of the movable grip 22Act1: Convex inclined surface 22Act2: Top surface of convex part 22Act3: Vertical surface of convex part 22b: Central part of the fixed grip 22b1s: The first recess in the center of the fixed grip 22b1t: The first convex part of the central part of the fixed grip part 22b2s: The second recess of the central part of the fixed grip 221b: The first abutting surface of the central part 222b: The second abutting surface of the central part 223b: The third abutment surface in the center 224b: 4th abutment surface in the center 22c: Fix the front end of the grip 22cs: The recess of the front end of the fixed grip 22cs1: Inclined surface of recess 22cs2: bottom surface of recess 22ct: Fix the convex part of the front end of the grip 22ct1: Convex inclined surface 22ct2: top surface of convex part 22ct3: Vertical surface of convex part 220c: Abutting surface of the front end of the fixed grip 22d: Bolt hole for fixing the grip 22g: Long hole for fixing the grip 24: auxiliary insulated operating rod 25: Front end piece of auxiliary insulated operating rod 25a: Base end of the front piece 25b: The front end of the front end piece 25c: Bolt hole of the front part 25d: Rivet hole of the front part 25e: Bolt of front piece 26: Control the operation part 26a: Joystick 26b: Supporting metal parts 26c: release lever 26d: Rotating shaft for operation 26e: Actuator 28: Spring 30: Pivot (bolt for connecting fixed grip and movable grip) 42: Rivets (rivets for fastening movable grips and auxiliary insulating operating rods) 84: Holding objects (wires with relatively large diameters, wires with relatively medium diameters, wires with relatively small diameters, sheets/covers, etc.) A: Axis direction (including the direction of the axis of the insulated operating rod toward the base end or toward the front end) B: In the gripping section having the movable gripping section that is approached and separated by the operation of the gripping operation section and the fixed gripping section, the approach and separation direction (rotating direction centered on the pivot of the movable gripping section) V: imaginary plane (the plane containing the axial direction of the insulated operating rod) C1: Imaginary plane (a plane extending from the bolt hole of the fixed grip to the front end) C2: Imaginary plane (a plane extending from the bolt hole of the movable grip toward the front end) T1: The first roughly closed area T2: The second roughly closed area

Fig. 1 is a front view of a holding tool for indirect thread construction of the present invention. Fig. 2 is a perspective view of the holding part showing the holding tool for indirect thread construction of the present invention in an opened state. Fig. 3 is an enlarged view of a part of Fig. 1 and is a front view of the gripping part showing the gripping tool for indirect thread construction of the present invention in an opened state. Fig. 4 is a front view showing a fixed grip part of the grip tool for indirect thread construction of the present invention. Fig. 5 is a front view showing a movable grip part of the grip tool for indirect thread construction of the present invention. Fig. 6 is a front view showing how a gripping object with a relatively large diameter is gripped at the center of the gripping part of the gripping tool for indirect thread construction of the present invention. Fig. 7 is a front view showing how a gripping object with a relatively medium diameter is gripped at the center of the gripping part of the gripping tool for indirect thread construction of the present invention. Fig. 8 is a front view showing how a cloth-shaped grasped object is held at the tip of the grasping part of the holding tool for indirect thread construction of the present invention. Fig. 9 is a diagram showing a modification of the holding tool for indirect thread construction of the present invention, and is a front view showing the holding part in an opened state.

10: Control tools for indirect live line fortifications

12: Control Department

14: Insulated operating rod

15: The embedded part of the fixed grip part

15a: The base end of the embedded part

15e: Bolt of embedded part

20: Movable grip

20a: The base end of the movable grip

20b: The central part of the movable grip

20b1s: The first recess in the center of the movable grip

20b1t: The first convex part of the central part of the movable grip

20b2s: The second recess in the center of the movable grip

201b: The first abutment surface in the center

202b: The second abutment surface of the central part

20c: The tip of the movable grip

20ct: The convex part of the front end of the movable grip

20cs: The concave part of the front end of the movable grip

200c: Abutment surface of the tip of the movable grip

20f: The base end of the movable grip

20g: Long hole in the movable grip

22: fixed grip

22a: Fix the base end of the grip

22av: The flexion of the base end of the fixed grip

22b: Central part of the fixed grip

22b1s: The first recess in the center of the fixed grip

22b1t: The first convex part of the central part of the fixed grip part

22b2s: The second recess of the central part of the fixed grip

221b: The first abutting surface of the central part

222b: The second abutting surface of the central part

223b: The third abutment surface in the center

224b: 4th abutment surface in the center

22c: Fix the front end of the grip

22cs: The recess of the front end of the fixed grip

22ct: Fix the convex part of the front end of the grip

220c: Abutting surface of the front end of the fixed grip

22g: Long hole for fixing the grip

24: auxiliary insulated operating rod

25: Front end piece of auxiliary insulated operating rod

25a: Base end of the front piece

25e: Bolt of front piece

30: Pivot (bolt for connecting fixed grip and movable grip)

42: Rivets (rivets for fastening movable grips and auxiliary insulating operating rods)

Claims (4)

A control tool for indirect live line fortifications, with: Insulating insulated operating rods with a length longer than the safe distance between the wire and the human body; The gripping portion has a movable gripping portion and a fixed gripping portion that are arranged at the front end of the insulating operating rod in the axial direction, and are approached and separated by the operation of the gripping operating portion provided on the insulated operating rod; An insulating auxiliary insulating operating rod to assist the approach and distance movement of the aforementioned grip connected to the front end; and The gripping operation part is installed near the base end of the insulating operation rod and rotatably connected to the base end of the auxiliary insulating operation rod, and uses a lever to move the auxiliary insulating operation rod in its length direction Move back and forth to operate the aforementioned grip, The aforementioned fixed holding part has: The base end is connected to the front end of the aforementioned insulated operating rod; The central part is arranged in a row at the base end and is formed in a convex substantially arc shape toward the outward direction of the plane direction including the axial direction of the insulating operating rod; and The front end is arranged in the aforementioned central part, The central portion of the fixed grip portion has a first concave portion that is recessed in the outward direction and a first convex portion that protrudes in the inward direction, and is formed on the inner side of the surface direction to abut the object to be grasped, and is formed from the base The end portion side is continuous toward the front end portion side and is a wave that is bent or bent in the direction of the surface, The aforementioned movable holding part has: The base end is rotatably connected to the front end of the aforementioned auxiliary insulating operating rod; The central portion is arranged in a row on the base end portion, and is formed in a convex substantially arc shape in a direction opposite to the convex direction of the central portion of the fixed holding portion, that is, the outward direction of the surface direction; and The front end is arranged in the aforementioned central part, In addition, the base end portion is rotatably connected to the base end portion of the fixed grip portion through a pivot so that the fixed grip portion can be approached and separated by the operation of the grip operation portion. The central portion of the movable grip portion has a first concave portion that is recessed in the outward direction and a first convex portion that protrudes in the inward direction, and is formed on the inner side of the surface direction to abut the object to be grasped, and is formed from the base The end portion side is continuous toward the front end portion side and is a wave that is bent or bent in the direction of the surface, The front end of the movable grip and the front end of the fixed grip are formed to be substantially parallel when the front end of the movable grip contacts the front end of the fixed grip. For example, claim 1 is a gripping tool for indirect line construction, wherein the central part of the fixed grip part further has a second concave part, and the second concave parts are arranged on the front end side of the first convex part in the central part of the fixed grip part. , And dent in the outward direction, and form a wave of buckling or bending in the aforementioned surface direction, The central portion of the movable grip portion further has a second concave portion. The second concave portions are arranged on the front end side of the first convex portion in the central portion of the movable grip portion and are recessed in the outward direction to be formed in the surface direction. The waveform of buckling or bending. A control tool for indirect live line fortifications, with: Insulating insulated operating rods with a length longer than the safe distance between the wire and the human body; The gripping portion has a movable gripping portion and a fixed gripping portion that are arranged at the front end of the insulating operating rod in the axial direction, and are approached and separated by the operation of the gripping operating portion provided on the insulated operating rod; An insulating auxiliary insulating operating rod to assist the approach and distance movement of the aforementioned grip connected to the front end; and The gripping operation part is installed near the base end of the insulating operation rod and rotatably connected to the base end of the auxiliary insulating operation rod, and uses a lever to move the auxiliary insulating operation rod in its length direction Move back and forth to operate the aforementioned grip, In addition, the aforementioned fixed gripping part has: The base end is connected to the front end of the aforementioned insulated operating rod; The central part is arranged in a row at the base end and is formed in a convex substantially arc shape toward the outward direction of the plane direction including the axial direction of the insulating operating rod; and The front end is arranged in the aforementioned central part, The aforementioned movable holding part has: The base end is rotatably connected to the front end of the aforementioned auxiliary insulating operating rod; The central portion is arranged in a row on the base end portion, and is formed into a convex substantially arc shape in a direction opposite to the convex direction of the central portion of the fixed grip portion, that is, the outward direction of the surface direction; and The front end is arranged in the aforementioned central part, In addition, the base end portion is rotatably connected to the base end portion of the fixed grip portion through a pivot so that the fixed grip portion can be approached and separated by the operation of the grip operation portion. The front end of the movable grip and the front end of the fixed grip are formed so as to be substantially parallel when the front end of the movable grip contacts the front end of the fixed grip. In addition, the front end portion of the fixed grip portion has a convex portion protruding inward and a concave portion recessed in the outward direction, forming a wave that is bent in the surface direction, The front end portion of the movable grip portion has a concave portion that is recessed in the outward direction and a convex portion that protrudes in the inward direction, and forms a wave that is bent in the direction of the surface. The convex portion of the front end of the fixed grip and the concave portion of the front end of the movable grip engage when the front end of the movable grip contacts the front end of the fixed grip, The concave portion of the front end of the fixed grip and the convex portion of the front end of the movable grip engage when the front end of the movable grip contacts the front end of the fixed grip. For example, claim 2 is a gripping tool for indirect live line construction, wherein the front end of the fixed grip has a convex portion protruding inward and a concave portion concave in the outward direction, and forms a wave that is bent in the aforementioned surface direction, The front end portion of the movable grip portion has a concave portion that is recessed in the outward direction and a convex portion that protrudes in the inward direction, and is formed into a wave that is bent in the direction of the surface, The convex part of the front end of the fixed grip and the concave part of the front end of the movable grip engage when the front end of the movable grip contacts the front end of the fixed grip, The concave portion of the front end of the fixed grip and the convex portion of the front end of the movable grip engage when the front end of the movable grip contacts the front end of the fixed grip.

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