JPH11205930A - Indirect live line gripping tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To grip easily such a small part as a cotter pin, by providing a gripping tool comprising a slit with an opened end which is as large as a shaft portion of the part to be inserted thereinto, an energizing mechanism for closing both the other end portion sides of a pair of sandwiching pieces whose one-end portion sides are joined to each other, and a lever mechanism for opening against the energizing mechanism. SOLUTION: When taking out a cotter pin P mounted on a distribution apparatus, first, a gripping tool (a) is attached to a shared job bar (b) to match the attachment angle of an attachment portion 10 to the attachment position of the cotter pin P. Further, operating a lever 6, a pair of sandwiching pieces 1a, 1b is set to the state of their end portions being opened. Then, moving the gripping tool a in the direction shown by an arrow, a shaft portion P1 present near a head portion P2 of the cotter pin P is inserted into a slit 3. Thereafter, when rotating a lever 6 by a hot stick, the head portion P2 of the cotter pin P is sandwiched between the pair of sandwiching pieces 1a, 1b. Therefore, when moving the gripping tool a, the cotter pin P can be taken out from the distribution apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gripping tool for an indirect hot wire, and more particularly to a tool having a shaft and a head, such as a cotter pin or a bolt used in power distribution equipment. Regarding what you did.

[0002]

2. Description of the Related Art The present applicant has previously described Japanese Patent Application Laid-Open No. 9-1822.
No. 28 proposes a mounting tool for an indirect hot wire for indirectly inserting a cotter pin (also called a cotter bolt) used in power distribution equipment.

[0003] The mounting tool according to this proposal has a vice-like gripping mechanism provided at the tip of a common working rod made of an electrically insulating material for indirect hot-line work. It is designed to be inserted into pin holes of upholstery or retaining clamps.

[0004]

However, the mounting tool proposed above uses a vise to grip the cotter pin, so that it is convenient to indirectly insert the cotter pin. However, it was difficult to grasp the cotter pin, and the cotter pin could not be pulled out using the mounting tool proposed above. For this reason, the appearance of a gripping tool for an indirect hot wire capable of pulling out a cotter pin has been awaited.

[0005] In addition, the appearance of a gripping tool for an indirect hot wire that can insert a small object such as a cotter pin with a single gripping tool for an indirect hot wire and remove the inserted small object has been awaited. .

SUMMARY OF THE INVENTION The present invention has been made in order to meet the above-mentioned demand, and an object of the present invention is to provide a gripping tool for an indirect hot wire which can easily grip a small object such as a cotter pin. is there.

[0007]

According to the present invention, there is provided a gripping tool for an indirect live wire according to the present invention, in order to achieve the above object, a shaft portion such as a cotter pin or a bolt used in power distribution equipment and a head larger than the shaft portion. A gripping tool for an indirect hot wire gripping a component having a pair of clamps, one end of which is rotatably connected by a hinge and one end of which is attached to an operation rod made of an electrically insulating material. A slit provided on the other end side of one of the pair of holding pieces and having an open end having a size into which the shaft of the component is inserted; At both ends,
It is characterized by comprising an urging mechanism that always urges to close, and a lever mechanism that opens the pair of holding pieces closed by the urging mechanism against the urging force.
Further, the operation rod is a common operation rod used in an indirect hot-line operation.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a gripping tool for an indirect hot wire (hereinafter, referred to as a “grabbing tool”) a according to an embodiment detachably attached to a tip of a common working rod b serving as an operating rod of the present invention using a wing nut N. FIG. 2 (a) shows a state in which it is attached.
Is an enlarged cross-sectional view taken along the line AA of FIG. 1, and FIG.
It is a B line expanded sectional view.

The common working rod b is a well-known one usually provided by a contractor of a power distribution equipment, and is made of a rod made of an electrically insulating material. In addition to the gripping tool a, a tool such as a spanner (not shown) can be attached.

In FIG. 1, reference numerals 1a and 1b denote a pair of holding pieces formed by joining strips of substantially the same shape. One end of the pair of holding pieces 1a and 1b in the longitudinal direction (FIG. 1).
(The lower end side) is rotatably connected by a hinge 2. Then, one holding piece (left holding piece in FIG. 1) 1
As shown in FIG. 2A, a slit 3 having an open distal end is provided at the distal end on the other end side of “a”.

The slit 3 is formed by a shaft portion P of the cotter pin P.
1 or a stepped groove 3 'which is large enough to insert a shaft part (screw part) of a bolt (not shown) and into which a head P2 of the cotter pin P or a head of a bolt (not shown) can be inserted. . Hereinafter, the article will be described using the cotter pin P.

A pair of tongues 4a, 4b project from the other holding piece 1b toward the hinge 2 toward the outside at a predetermined interval, and an opening is provided between the tongues 4a, 4b. 5 are provided.

The tongue pieces 4a, 4b are
It is provided rotatably between. And the lever 6
On one end side (left side in FIG. 1), there is provided a cam 6a which can penetrate the opening 5 and abut on one of the holding pieces 1a. On the other end side, a cam of the tongue pieces 4a, 4b is provided. Also project outward, and a bent portion 6b is provided at the tip of the projection.

The cam 6a is provided eccentrically with respect to the support shaft 7. That is, when the lever 6 is pivoting about the support shaft 7 in the state shown in FIG. 1, the cam 6a opens the distal ends of the pair of holding pieces 1a and 1b, and When rotated as shown in FIG. 3, the cam 6a is formed so that the pair of holding pieces 1a and 1b can be closed by a spring described later.

In the figure, reference numeral 8 denotes a coil spring which forms the biasing mechanism of the present invention.
a, 4b, outside the pin 9 provided between the holes 1a ', 1b' provided in the pair of holding pieces 1a, 1b, that is, the pin located outside the holding piece 1b. 9. The strength of the coil spring 8 is such that the pair of holding pieces 1a and 1b are always urged in the closing direction, and the pair of holding pieces 1a and 1b can be opened by operating the lever 6. It is decided.

In the biasing mechanism using the coil spring 8, the hinge 2 may be a hinge with a spring, and the hinge 2 may also be used as the biasing mechanism.

In the drawing, reference numeral 10 denotes a mounting portion, one end of which is shown in FIG.
In FIG. 1, the upper end is fixed to the lower part of the holding piece 1b, and the other end (the lower end in FIG. 1) is detachably attached to the common work bar b by a wing nut N.

When the cotter pin P attached to the power distribution equipment (not shown) is removed from the gripping tool a having the above configuration, first, the gripping tool a is attached to the common work bar b at a predetermined angle. In other words, the cotter pins P can be mounted with the mounting angle of the mounting portion 10 adjusted in accordance with the mounting position of the cotter pin P. Further, by operating the lever 6, the pair of holding pieces 1a, 1b
Is set to the open state as shown in FIG.

Next, the gripping tool a is moved in the direction of the arrow in FIG. 1 to insert the shaft portion P1 near the head P2 of the cotter pin P into the slit 3, and then the lever 6 is moved by using a hot stick (not shown). When it is turned in the direction of arrow a of 3,
The head P2 of the cotter pin P is held by a pair of holding pieces 1a and 1b. Therefore, in this state, the cotter pin P can be removed by moving the gripping tool a in the direction of arrow B in FIG.

In order to insert the cotter pin P into distribution equipment (not shown), the cotter pin P is inserted into the distribution equipment with the cotter pin P being gripped as shown in FIG.
To remove from the open end of slit 3 (downward in FIG. 3)
The gripping tool a can be removed from the cotter pin P inserted into the power distribution equipment.

In the above-described example, the small object is a cotter pin, but a bolt can be inserted or removed in the same manner.

Further, in the above-described example, the gripping tool a is attached to the common work bar b, but it may be a dedicated operation bar.

[0023]

According to the gripping tool of the present invention, one end in the longitudinal direction is rotatably connected by a hinge,
One end is provided on a pair of holding pieces attached to an operating rod made of an electrically insulating material, and the other end of one of the holding pieces is inserted into the shaft of the component. A slit whose size is open, a biasing mechanism for constantly biasing the other end of the pair of clamping pieces to be closed, and the pair of clamping mechanisms closed by the biasing mechanism; Since the lever mechanism opens the piece against the urging force, it is possible to easily insert and remove small items with one tool. When the operating rod is a common working rod used for indirect hot-line work, the common working rod can be used.

[Brief description of the drawings]

FIG. 1 is a front view of a state in which a gripping tool according to an embodiment of the present invention is attached to a shared work bar.

FIG. 2A is an enlarged sectional view taken along line AA of FIG. 1, FIG.
FIG. 2 is an enlarged sectional view taken along line BB of FIG. 1.

FIG. 3 is an explanatory diagram showing a state where a cotter pin is gripped.

[Explanation of symbols]

 a Holding tool for indirect live wire (Grip tool) 1a, 1b Nipping piece 2 Hinge 3 Slit 4a, 4b Tongue piece 5 Opening 6 Lever 6a Cam 7 Support shaft 8 Coil spring 9 Pin 10 Mounting part P Cotter pin P1 Shaft P2 Head Part b Shared work stick

Claims (2)

[Claims] An indirect hot-line gripping tool for gripping a shaft part such as a cotter pin or a bolt used in power distribution equipment and a part having a head larger than the shaft part, wherein one end side in a longitudinal direction is hinged. A pair of clamping pieces which are rotatably connected and one end of which is attached to an operating rod made of an electrically insulating material, and which are provided at the other end of one of the pair of clamping pieces; A slit having an open end whose size is to be inserted into the shaft of the component, an urging mechanism for urging the two other ends of the pair of holding pieces to be always closed, and an urging mechanism. And a lever mechanism for opening the pair of holding pieces closed against the urging force by a lever. 2. The indirect hot-line gripping tool according to claim 1, wherein the operating rod is a common working rod used in an indirect hot-line operation.