JPH1198631A - Tools for hot-line work of cotter pin, split pin or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate mounting or removing of a cotter pin or a split pin in the state of enhance safety. SOLUTION: A cotter pin mounting and removing part 20 is provided on a pedestal part 11 of a tool body 10, which is mounted on the end part of an insulated operating stick A, in such a way as to be freely detachable. A split pin mounting part 30 is provided on one side of the top end part 12 provided on the top end surface of the pedestal part 11, and a split pin removing part 40 is provided on the other side of the top end part 12. The cotter pin and split pin can be mounted or removed with only a single piece of tool for holt- line work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a live line construction tool such as a cotter pin and a split pin for performing distribution line construction in a live state.

[0002]

2. Description of the Related Art Conventionally, when performing distribution line work in a live state, the work of connecting a tension insulator and a retaining clamp with a cotter pin, for example, is performed by a worker wearing insulating gloves. A cotter pin is inserted into the connection hole between the tension insulator and the retaining clamp, and then a split pin is inserted into the split pin hole of the cotter pin to prevent the cotter pin from slipping off. The work to remove the connection with the retaining clamp fitting is, for example, a worker wearing insulating gloves, pulling out the cotter pin from the cotter pin hole of the cotter pin to release the cotter pin, and then removing the cotter pin from the tension insulator and retaining clamp. It is pulled out from the connection hole of the bracket.

[0003] However, these operations are performed manually by wearing insulating gloves, and there is a problem in safety.

[0004] In order to improve safety, for example,
A cotter pin live wire mounting tool disclosed in JP-A-9-182228, a split pin live wire mounting tool disclosed in JP-A-9-182227, and the like have been proposed.

[0005]

According to the proposed cotter pin live wire mounting tool, a slit is provided in a movable piece which comes into contact with and separates from a fixed piece by a screw bar mechanism of a vise, and a cotter pin is provided in the slit. Insert the head, then move the movable piece to the fixed one side by the screw rod mechanism of the vise device,
Although the head of the cotter pin is grasped by the movable piece and the fixed piece, in any case when the cotter pin is attached, the cotter pin is removed from the tool after being inserted into the connection hole of the tension insulator and the retaining clamp fitting. There is a problem that the screw rod mechanism needs to be rotated by remote control, which is troublesome.

According to the proposed split pin live wire mounting tool, the end of the cotter pin on the side where the split pin hole is provided is inserted into the end receiver, and the cotter pin is inserted into the end receiver. It has a through hole extending in the axial direction of the split pin hole of the cotter pin, and a sliding shaft, which is provided with a spring pin implanted at the tip end through a step and is slidably mounted in the through hole. With the split pin mounted on the spring pin, the sliding shaft is moved toward the end receiving side by the pressing mechanism, and the split pin is inserted into the split pin hole of the cotter pin in the end receiving. But,
Since the ring portion (annular head) of the split pin is simply engaged with the spring pin and attached, the interval between the tip ends of the pair of split pins remains open. 1
Even if the tip of the pair of legs is not restrained at all and remains wobble, and the sliding shaft slides inside the through hole while being guided by the through hole and moves to the end receiving side, There is a problem that it is difficult to smoothly insert the cotter pin into the cotter pin hole.

Further, in order to connect the tension insulator and the retaining clamp using the cotter pin, two tools, a hot wire installation tool for the cotter pin and a hot wire installation tool for the split pin, must be prepared. In addition, there is a problem in that work in a narrow high place work bucket is difficult and workability is poor.

Further, the work of removing the cotter pin and disconnecting the connection between the tension insulator and the retaining clamp must be performed manually by an operator wearing insulating gloves as in the prior art. There is a problem, and there is a demand for development of a hot wire removal tool for cotter pins and a hot wire removal tool for split pins.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and allows easy installation of cotter pins and split pins, does not require the use of a plurality of tools, and allows the cotter pins and split pins to be removed. The purpose of the present invention is to provide live tooling tools such as split pins and split pins.

[0010]

In order to achieve the above object, a cotter pin hot-line construction tool according to the present invention is provided with a cotter pin attaching / removing portion on a tool body detachably attached to a tip portion of an insulating operating rod. The cotter pin mounting / removing portion is provided with a cotter pin insertion groove into which a flange portion of the cotter pin is removably inserted so that a shaft portion of the cotter pin projects from the tool body, and a cotter pin insertion groove. And a holding member for holding a flange portion of the cotter pin in the cotter pin insertion groove with elastic means for urging the tip portion into the cotter pin insertion groove. The cotter pin insertion groove has an opening end serving as an entrance / exit of the flange of the cotter pin, and inserts the flange of the cotter pin into the cotter pin insertion groove. Wherein the flange portion is configured to be retracted from the cotter pin insertion groove against a biasing force of the elastic means while abutting on a tapered tip portion of the holding member. And

[0011] The split pin hot-line construction tool of the present invention is provided with a split pin attaching portion on a tool body detachably attached to the tip portion of the insulating operating rod, and the split pin attaching portion is provided with a fixing portion. A movable portion provided so as to be able to contact and separate from the fixed portion, and an annular head of the split pin is detachable with a pair of legs of the split pin protruding from the tool body. A holding groove for attaching a split pin formed in the fixed portion and the movable portion, and adjusting means for rotating the movable portion to approach the fixed portion and separate from the fixed portion, In the state where the retaining groove for attaching the split pin has an opening end serving as an entrance and exit of the annular head of the split pin, and the annular head of the split pin is inserted into the retaining groove for attaching the split pin, the adjustment is performed. Means for rotating the movable part so as to approach the fixed part. In, it is characterized by being configured so as to narrow the gap between the tips of the legs of a pair of the split pin.

[0012] A split pin hot wire construction tool according to the present invention is provided with a split pin removing portion on a tool body detachably attached to a tip end portion of an insulating operating rod, and the split pin removing portion is provided with a split pin. The annular head is inserted and held, and a cotter pin removing insertion groove having an insertion port, and a slope protruding into the cotter pin removing insertion groove is provided with a slope, so that the cotter pin has an annular head inside. A retaining pin which engages and retains the annular head in the insertion groove for removing the split pin, and a lid member which can be opened and closed provided in the insertion groove for removing the split pin so as to face the tip of the retaining pin. And a closing means for holding the lid member in a closed state, and when inserting the annular head of the split pin from the insertion port into the insertion groove for removing the split pin, the annular head is The retaining pin comes into contact with the slope at the tip of the holding pin and moves along the slope to form the annular shape. To the tip of the retaining pin portion is engaged, it is characterized in that for pressing the cover member against the closure means away from said split pin removal for insertion groove.

[0013] A cotter pin attaching / removing portion, a split pin attaching portion and a split pin removing portion are provided on a tool body detachably attached to a tip end portion of an insulating operating rod. The cotter pin mounting / removing portion is provided with a cotter pin insertion groove in which a flange portion of the cotter pin is removably inserted so that a shaft portion of the cotter pin projects from the tool body, and a cotter pin insertion groove. A holding member for holding a flange portion of the cotter pin in the cotter pin insertion groove, comprising a tapered tip portion that protrudes so as to be able to protrude and retract into the cotter pin insertion groove; Wherein the cotter pin insertion groove has an opening end serving as an entrance and exit of the flange of the cotter pin, and the cotter pin is inserted into the cotter pin by inserting the flange of the cotter pin. When inserted into the inside of the holding member, a part of the tip portion is retracted from the cotter pin insertion groove against the urging force of the elastic means while the flange portion is in contact with the tapered tip portion of the holding member. The split pin mounting portion is configured such that a fixed portion, a movable portion that is provided so as to be able to contact and separate from the fixed portion, and a pair of legs of the split pin protrude from the tool body. In the state, the annular head of the split pin is removably fitted, a split pin mounting holding groove formed in the fixed portion and the movable portion, and the movable portion is rotated to approach the fixed portion, Adjusting means for separating the split pin from the fixing portion, wherein the retaining pin for attaching the split pin has an opening end serving as an entrance and exit of the annular head of the split pin, and the annular head of the split pin is attached to the split pin. In the state where the movable portion is inserted into the holding groove for The space between the ends of the pair of legs of the split pin is reduced by rotating the split pin so as to approach the fixed portion. , A cotter pin removal insertion groove having an insertion port to be held, and a slope protruding into the cotter pin removal insertion groove are provided, and the inclined surface is engaged with an annular head of the cotter pin to form the annular member. A holding pin for holding a head in the insertion groove for removing the split pin, a lid member provided in the insertion groove for removing the split pin so as to face a tip end of the holding pin, and an openable / closable lid member; Closing means for holding in a closed state, when the annular head of the split pin is inserted into the insertion groove for removing the split pin from the insertion opening, the annular head is provided with a tip of the holding pin. The tip of the retaining pin abuts on the slope and moves along the slope to move into the annular head. Until the portion engages, the lid member is pressed against the closing means so as to be separated from the split pin removing insertion groove.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a front view showing an embodiment of a cotter pin and split pin live wire construction tool of the present invention, FIG. 2 is a right side view thereof, FIG. 3 is a left side view thereof, and FIG. Figure 1 shown
5 is a plan view of a cotter pin and a split pin hot wire construction tool, FIG. 5 is a perspective view of a holding member constituting a cotter pin attaching / removing portion of the cotter pin and the split pin hot wire construction tool of FIG. 1, and FIG. 1 is a partial perspective view of a holding pin that constitutes a split pin removing portion of a tool for hot-line construction of a cotter pin and a split pin,
7 is a front view showing a state where a cotter pin is inserted into a cotter pin attaching / removing portion, FIG. 8 is a right side view of the same, FIG. 9 is a front view showing a state where a cotter pin is inserted into a cotter pin attaching portion, and FIG.
0 is a right side view of the same, FIG. 11 is an explanatory front view for explaining a state where a split pin is inserted into a split pin hole of a cotter pin, and FIG.
Is an explanatory front view for explaining a state in which the split pin is removed from the split pin hole of the cotter pin, FIG. 13 is a front view showing a state in which the annular head of the split pin is inserted into the split pin removing portion, and FIG.
Is a left side view, FIG. 15 is a perspective view showing a cotter pin and a split pin, and FIG. 16 is an explanatory perspective view for explaining a state when the tension insulator and the retaining clamp are connected.

As shown in FIG. 1, the cotter pin and cotter pin hot-line construction tool of the present embodiment is provided with a cotter pin attached to a pedestal portion 11 of a tool body 10 which is detachably attached to a tip end portion of an insulating operation rod A. A detaching portion 20 is provided, a split pin attaching portion 30 is provided on one of the upper end portions 12 (the right side in FIG. 1) provided on the upper end surface of the pedestal portion 11, and a split pin mounting portion 30 is provided on the other of the upper end portion 12 (the left side in FIG. 1). A pin removing section 40 is provided so that the cotter pin 50 and the split pin 60 can be attached and detached with a single hot wire construction tool.

The cotter pin mounting / removing portion 20 is provided at one end (the right side in FIG. 1) of the pedestal portion 11 and has a cotter pin insertion groove 21 into which the flange portion 52 of the cotter pin 50 is removably inserted. An insertion hole 22 communicating with the groove 21 and extending horizontally in a direction orthogonal to the axial direction of the tool body 10 (extending horizontally from the right side to the left side of the pedestal portion 11); The flange 52 of the cotter pin 50 is provided with a tapered (frusto-conical) distal end portion 23 that protrudes into and out of the cotter pin insertion groove 21 and a coil spring 24 as elastic means.
Holding member 2 for holding in the cotter pin insertion groove 21
5 (see FIGS. 1 and 5).

The cotter pin insertion groove 21 has an opening end 21a that opens on the front side of the pedestal portion 11 (opens in a direction perpendicular to the axial direction of the cotter pin 50).
1a is an entrance / exit of the flange 52 of the cotter pin 50. The other opening of the cotter pin insertion groove 21 adjacent to the opening end 21 a is provided with screws 27, 27 on one side surface (right side surface) of the pedestal portion 11.
It is closed by a lid member 26 fixed by (see FIG. 2). The cover member 26 is provided with an insertion groove 28 that is slightly wider than the diameter of the shaft portion 51 of the cotter pin 50 and extends from the front side to the back side of the pedestal portion 11. The insertion groove 28 is open on the front side of the pedestal portion 11 like the open end 21a. Therefore, when the flange portion 52 of the cotter pin 50 is inserted into the cotter pin insertion groove 21 from the front side of the pedestal portion 11, the shaft portion 51 of the cotter pin 50 is inserted into the insertion groove 28, and the shaft portion 51 of the cotter pin 50 is 11 protrudes from one side surface (right side surface) in a direction (horizontal direction) orthogonal to the axis of the tool body 10.

The holding member 25 has a smaller diameter than the tip portion 23 except for the tip portion 23. The rear end of the holding member 25 protrudes from the other side surface (left side surface) of the pedestal portion 11 via a small-diameter hole portion 22a communicating with the insertion hole 22, and a nut 29 is screwed to the protruding portion. The holding member 25 is thereby prevented from falling out of the insertion hole 22.

The coil spring 24 is wound around a portion of the holding member 25 except for the distal end portion 23 so as to be inserted into the insertion hole 2.
2 and the tip portion 23, and biases the tip portion 23 toward the cotter pin insertion groove 21.

The flange 52 of the cotter pin 50 is
When inserting into the cotter pin insertion groove 21 from the
The second hemispherical head slides on the tapered tip portion 23 of the holding member 25 while retracting a part of the tip portion 23 from the cotter pin insertion groove 21 against the urging force of the coil spring 24, and the flange portion 52 enters the cotter pin insertion groove 21. Further, the shaft portion 51 of the cotter pin 50 is inserted into the insertion groove 28. When the flange portion 52 of the cotter pin 50 is completely inserted into the cotter pin insertion groove 21, the flange portion 52 of the cotter pin 50 is projected in a state where the shaft portion 51 of the cotter pin 50 projects horizontally from the right side surface of the pedestal portion 11. It is firmly held in the cotter pin insertion groove 21 by the urging force of the coil spring 24 (see FIG. 7).

As shown in FIGS. 1, 2 and 4, the split pin mounting portion 30 includes a fixing portion 31 provided on the back side of one end (right end) of the upper end portion 12, and one end (right end) of the upper end portion 12. The pin 3 is inserted into the notch step 12a formed on the front side of the
2 and a split pin 60
The pair of leg portions 61, 61 project upward from the upper end portion 12 substantially vertically, and the annular head 6 of the split pin 60 is
2 and a movable part 33 into which the second part 2 is detachably inserted.
And a screw member 35 as adjustment means for moving the movable portion 33 toward or away from the fixed portion 31 by rotating the movable portion 33 about the pin 32 as a fulcrum. Have.

The retaining groove 34 for attaching the split pin is substantially circular and concave, is provided at a position near the upper end of the fixed portion 31 and the movable portion 33, and has an opening 34 a at the upper end surface of the upper end portion 12.
An opening 34b is formed on one side surface (right side surface) of the upper end portion 12. The open end 34a and the open end 34b communicate with each other, and the open end 34
The pair of legs 61, 61 of the split pin 60 project upward from the upper end portion 12 substantially vertically from a, and the open end 34b serves as an entrance for the annular head 62 of the split pin 60.

The screw member 35 includes the fixed part 31 and the movable part 3.
3 and is attached to the fixed portion 31 and the movable portion 33 so as to penetrate in a substantially horizontal state (penetrate from the rear side to the front side of the upper end portion 12) at the vertical height intermediate position of the movable portion 3. A nut 36 is screwed into an end portion penetrating from 33. By tightening the nut 36, the nut 36 pushes the movable portion 33, and the movable portion 33 is
2 is pivoted toward the fixed portion 31 with the fulcrum. Thereby, the annular head 62 of the split pin 60 in the split pin mounting holding groove 34 is pressed by the movable portion 33, and
The distance between the tips of the pair of legs 61, 61 is reduced (FIG. 1).
1). Also, a pair of legs 61, 6 with a reduced spacing
The tip of 1 is firmly held without shaking. Therefore, the split pin hole 53 of the cotter pin 50 of the split pin 60
Insertion into the device becomes easy.

As shown in FIGS. 1, 3 and 4, the split pin removing portion 40 is provided on the other side surface (left side surface) of the upper end portion 12 where the annular head portion 62 of the split pin 60 is inserted and held. The insertion groove 41 for removing the split pin and the insertion groove 4 for removing the split pin
1 is provided with a slope 42a (see FIG. 6) at the tip end thereof, which is engaged with the annular head 62 of the split pin 60 and holds the annular head 62 in the insertion groove 41 for removing the split pin. And a pin 42.

The holding pin 42 is fixed so as to extend substantially horizontally from one side (right side) to the other side (left side) at a position near the upper end of the upper end portion 12. It protrudes into the insertion groove 41 for removal.

The insertion groove 41 for removing the split pin is located at the upper end portion 1.
In addition to having the insertion opening 41a of the annular head 62 of the split pin 60 that opens at the upper end surface of the upper end portion 2, the opening also opens at the other side surface (left side surface) of the upper end portion 12, and the opening is formed at the other side surface ( It is closed by a lid member 43 provided on the left side surface).

As shown in FIGS. 1 and 3, the lower end of the lid member 43 extends to the upper end of the other side surface of the pedestal portion 11.
The pedestal portion 11 and the upper end portion 12 approach or separate from the other side surface (left side surface) with the pin 44 as a fulcrum.

At the intermediate height position of the cover member 43, the cover member 4
A closing means 45 is provided for holding the shutter 3 in a closed state (a state in which it contacts the pedestal portion 11 and the other side surface of the upper end portion 12). The closing means 45 includes a screw member 47 movably inserted into a hole 46 provided in the upper end portion 12 so as to extend substantially horizontally from one side (right side) to the other side (left side). A coil spring 48 is provided between the screw member 47 and the hole 46. The screw member 47 has an end protruding from an intermediate height position of the lid member 43 and a nut 49 screwed thereto, and is connected to the lid member 43.
Therefore, when a force is applied to open the lid member 43 with the pin 44 as a fulcrum, the coil spring 48 urges the lid member 43 in the closing direction.

The annular head 62 of the split pin 60 is inserted into the insertion port 41a.
When inserted into the insertion groove 41 for removing the split pin from the tongue, the annular head 62 abuts on the slope 42a at the tip of the holding pin 42, slides on the slope 42a, climbs over the slope 42a, and moves over the slope 42a. The lid member 43 is opened against the urging force of the coil spring 48 until it engages with the portion (see FIG. 12). The annular head 62 of the split pin 60 is inserted into the insertion groove 41 for removing the split pin.
Is completely inserted, and when the tip of the holding pin 42 engages with the inside of the annular head 62, the lid member 43 is closed by the urging force of the coil spring 48. As a result, the annular head 62 of the split pin 60 is firmly held in the split pin removal insertion groove 41, so that the split pin 60 can be pulled out of the split pin hole 53 of the cotter pin 50 by a hot wire construction tool. .

As shown in FIGS. 1 and 2, a connecting member 13 having a small width is provided at the bottom of the pedestal portion 11 of the tool body 10.
The connecting member 13 is inserted into a bifurcated connecting recess 15 at the upper end of a connecting fitting 14 attached to the upper end of the insulating operation rod A, and is rotatably connected via a pin 16. . A positioning plunger 17 is provided below the pin 16 of the connection fitting 14. The tip of the positioning plunger 17 projects into the connection recess 15, and any one of the plurality of positioning recesses 13 a arranged at substantially equal intervals along an arc drawn on the connection member 13 around the pivot point with the pin 16. It is designed to engage with one.
Accordingly, the pedestal portion 11 and the upper end portion 12 of the tool main body 10 can be set not only perpendicularly to the connection fitting 14 (insulating operation rod A) but also at a position rotated by a predetermined angle.

Next, the operation of the above-mentioned cotter pin and cotter pin live tool tool will be described.

First, a case where the cotter pin 50 is inserted into the connection hole D (see FIG. 16) between the tension insulator B and the retaining clamp C will be described with reference to FIGS.

First, the flange 52 of the cotter pin 50 is inserted into the cotter pin insertion groove 21 from the opening end 21a. At this time, the substantially hemispherical head of the flange 52 slides on the tapered tip portion 23 of the holding member 25,
Is retracted from the cotter pin insertion groove 21 into the insertion hole 22 against the urging force of the coil spring 24. The flange 52 of the cotter pin 50 enters the cotter pin insertion groove 21,
When the shaft portion 51 of the cotter pin 50 is inserted into the insertion groove 28, the flange portion 52 of the cotter pin 50 is kept in a state where the shaft portion 51 projects horizontally from the right side surface of the pedestal portion 11.
Is firmly held in the cotter pin insertion groove 21 by the urging force of the coil spring 24 (see FIG. 7).

Next, in this state, the cotter pin 50 is brought close to the connecting portion between the tension insulator B and the retaining clamp C with the hot wire construction tool, and the shaft portion 51 of the cotter pin 50 is moved to the tension insulator B and the retaining clamp C. Into the connection hole D.

When the shaft portion 51 is inserted into the connection hole D, the direction in which the flange 52 of the cotter pin 50 comes out of the cotter pin insertion groove 21 through the opening end 21a (the direction opposite to the direction when the flange 52 is inserted). When the pedestal portion 11 of the tool main body 10 is pulled by the hot wire construction tool, the flange portion 52 comes off from the cotter pin insertion groove 21.

Next, in order to prevent the cotter pin 50 from falling out of the connection hole D of the tension insulator B and the retaining clamp C,
The case where the split pin 60 is inserted into the split pin hole 53 of the cotter pin 50 will be described.

First, as shown in FIGS. 9 and 10, the annular head 62 of the split pin 60 is passed through the open end 34b from one side surface (right side surface) of the upper end portion 12 to hold the split pin mounting groove 3.
4 and a pair of legs 61 of a split pin 60,
61 is projected substantially vertically upward from the upper end portion 12 through the open end 34a. Next, when the nut 36 is tightened, the nut 36 pushes the movable portion 33, and the movable portion 33 is rotated toward the fixed portion 31 with the pin 32 as a fulcrum. As a result, the annular head 62 of the split pin 60 in the split pin mounting holding groove 34 is pressed by the movable portion 33,
The distance between the tips of the pair of legs 61, 61 is reduced (see FIG. 11). Also, a pair of legs 6 having a reduced space
The tip portions of 1, 61 do not shake.

Then, in this state, the split pin 60 is brought close to the cotter pin 50 inserted into the connection hole D of the tension insulator B and the retaining clamp C by the hot wire construction tool, and the cotter pin 5 is moved.
The pair of legs 61, 61 of the split pin 60
(See FIGS. 11 and 16).

When the insertion of the split pin 60 is completed, the split pin 6
When the upper end portion 12 of the tool main body 10 is pulled by the live wire construction tool in a direction in which the zero annular head 62 comes out of the opening end 34b of the split pin mounting holding groove 34, the annular head 62 of the split pin 60 is split. It can be forcibly removed from the mounting holding groove 34.

Next, a case where the cotter pin 50 is removed from the connection hole D (see FIG. 16) between the tension insulator B and the retaining clamp C will be described.

For this, first, it is necessary to extract the split pin 60 from the split pin hole 53 of the cotter pin 50. As shown in FIG. 12, the insertion opening 41a is
The annular head 62 is approached, and the annular head 62 is inserted into the insertion groove 41 for removing the split pin from the insertion opening 41a. At this time, the cover member 43 is coiled until the annular head 62 abuts on the slope 42a at the tip of the holding pin 42, slides on the slope 42a, rides over the slope 42a and engages with the tip of the holding pin 42. It opens against the urging force of the spring 48. The annular head 62 of the split pin 60 is inserted into the insertion groove 41 for removing the split pin.
Is completely inserted, and when the tip of the holding pin 42 engages with the inside of the annular head 62, the lid member 43 is closed by the urging force of the coil spring 48. Thereby, the annular head 62 of the split pin 60 is firmly held in the split pin removal insertion groove 41.

Next, the split pin 60 is
From the cotter pin 50 of the cotter pin 50.

After the split pin 60 is removed from the cotter pin 50, the pedestal portion 11 of the tool body 10 is
Is brought close to the flange 52 of the cotter pin 50, and the flange 52 is pressed against the open end 21a and inserted into the cotter pin insertion groove 21 from the open end 21a. The process of inserting the flange portion 52 into the cotter pin insertion groove 21 is the same as the previous process. That is, while the substantially hemispherical head of the flange 52 slides on the tapered tip 23 of the holding member 25,
Is partially retracted from the cotter pin insertion groove 21 into the insertion hole 22 against the urging force of the coil spring 24 so that the flange 5
2 enters the cotter pin insertion groove 21, and the shaft portion 51 is inserted into the insertion groove 28. Thereby, the cotter pin 5
The zero flange 52 is firmly held in the cotter pin insertion groove 21 by the urging force of the coil spring 24.

Next, in this state, the cotter pin 50 is connected to the connecting hole D of the tension insulator B and the retaining clamp C by the hot wire construction tool.
(See FIG. 16).

According to the above-described embodiment, the tool body 10
The cotter pin mounting / removing portion 20 is provided on the pedestal portion 11, and the split pin mounting portion 30 and the split pin removing portion 40 are provided on the upper end portion 12 provided on the upper end surface of the pedestal portion 11. Construction tools with cotter pins 50 and split pins 6
0 can be attached and detached, and the safety when the distribution line construction is performed in a live state can be improved, and the work efficiency can be remarkably improved.

In addition, a cotter pin is attached to the pedestal portion 11.
A detaching portion 20 is provided, and a split pin attaching portion 3 is provided on one of the upper end portions 12 (right side in FIG. 1) provided on the upper end surface of the pedestal portion 11.
0, and a cotter pin mounting / removing section 20, a split pin mounting section 30, and a split pin removing section 4 so that a split pin removing section 40 is provided on the other of the upper end portion 12 (left side in FIG. 1).
Since 0 is arranged, each operation of attaching and detaching the cotter pin 50 and the split pin 60 is not disturbed by other tools (the cotter pin attaching / removing section 20, the split pin attaching section 30, etc.) arranged on the tool body 10. Can be done. For example, in the case of attaching / removing the cotter pin 50, the cotter pin attaching / removing section 20 can be used without being disturbed by the other cotter pin attaching section 30 or the cotter pin removing section 40.

In this embodiment, the tool body 1
Although three tools, a cotter pin attaching / removing section 20, a split pin attaching section 30, and a split pin removing section 40, are provided on the cotter pin 0, only the cotter pin attaching / removing section 20 or the split pin attaching section 30 and the split pin removing section 40 are provided. Only one of them may be provided. Also, a combination of the cotter pin attaching / removing section 20 and the split pin attaching section 30, a combination of the cotter pin attaching / removing section 20 and the split pin removing section 40, or a combination of the split pin attaching section 30 and the split pin removing section 40. May be.

[0049]

As described above, according to the present invention, the attachment and detachment of the cotter pin and the split pin are easy, and it is not necessary to use a plurality of tools. Further, it is not necessary to perform a troublesome operation such as rotating the screw rod of the vise mechanism to hold the cotter pin as in the related art, and a pair of legs of the split pin is required for mounting the split pin. Since the gap between the tips of the portions can be narrowed and held firmly, the operation of inserting the split pin into the split pin hole of the cotter pin can be performed smoothly. Furthermore, when the cotter pin attaching / removing portion, the split pin attaching portion and the split pin removing portion are provided on the tool body, all the operations of attaching and detaching the cotter pin and the split pin are performed with one hot-line work tool. And work is facilitated in narrow, high-altitude work buckets.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a cotter pin and split pin live tool according to the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is a plan view of a tool for live-line construction of the cotter pin and the split pin shown in FIG.

FIG. 5 is a perspective view of a holding member constituting a cotter pin attaching / detaching portion of the tool for live wire construction of the cotter pin and the split pin of FIG. 1;

FIG. 6 is a partial perspective view of a holding pin which constitutes a split pin removing portion of the tool for live-line construction of the cotter pin and the split pin in FIG. 1;

FIG. 7 is a front view showing an embodiment of a cotter pin and a split pin live wire construction tool of the present invention.

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a front view showing a state in which a split pin is inserted into a split pin mounting portion.

FIG. 10 is a right side view of FIG. 9;

FIG. 11 is an explanatory front view for explaining a state in which a split pin is inserted into a split pin hole of a cotter pin.

FIG. 12 is an explanatory front view for explaining a state in which a split pin is removed from a split pin hole of a cotter pin.

FIG. 13 is a front view showing a state in which the annular head of the split pin is inserted into the split pin removing section.

FIG. 14 is a left side view of FIG.

FIG. 15 is a perspective view showing a cotter pin and a split pin.

FIG. 16 is an explanatory perspective view illustrating a state when the tension insulator and the retaining clamp are connected.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Tool main body 11 Pedestal part 12 Upper end part 20 Cutter pin attachment / removal part 21 Cutter pin insertion groove 23 Tip part 24 Elastic member (coil spring) 25 Holding member 30 Split pin attachment part 31 Fixed part 32 Pin 33 Movable part 34 Split pin attachment Holding groove 35 Adjusting means (screw member) 40 Split pin removing part 41 Insertion pin for removing split pin 42 Holding pin 42a Slope 43 Lid member 44 Pin 45 Closing means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaaki Konku 2-8-21, Kikusui 2-chome, Shiroishi-ku, Sapporo City, Hokkaido (72) Inventor Mamoru Fukumori 2 Article Kikusui, Shiroishi-ku, Sapporo, Hokkaido 1-8-21 Hokkai Electric Works Co., Ltd. (72) Inventor Akira Tatsumi 4-11-29 Nishitenma Kita-ku Osaka City Osaka

Claims (7)

[Claims] A cotter pin mounting / removing part is provided on a tool body detachably attached to a tip portion of an insulated operating rod, as a cotter pin live attaching tool for attaching and detaching a cotter pin in a live state. The cotter pin mounting / removing portion, a cotter pin insertion groove into which a flange portion of the cotter pin is removably inserted such that a shaft portion of the cotter pin projects from the tool body,
The cotter pin insertion groove is provided with a tapered tip portion that protrudes and retracts into the cotter pin insertion groove and elastic means for urging the tip portion into the cotter pin insertion groove, and the flange portion of the cotter pin is inserted into the cotter pin insertion groove. A holding member for holding the cotter pin, the cotter pin insertion groove has an opening end serving as an entrance / exit of a flange of the cotter pin, and when inserting the flange of the cotter pin into the cotter pin insertion groove, the flange is The cotter pin is characterized in that a part of the tip is retracted from the cotter pin insertion groove against a biasing force of the elastic means while being in contact with the tapered tip of the holding member. Tool for live line construction. 2. A split pin mounting tool for detachably attaching a split pin to a split pin in a hot wire state, the tool body being removably attached to a tip portion of an insulated operating rod, comprising a split pin mounting portion. The split pin mounting portion includes a fixed portion, a movable portion that is provided so as to be able to contact and separate from the fixed portion, and the split pin in a state in which a pair of legs of the split pin protrudes from the tool body. A pin-retaining mounting groove formed in the fixed part and the movable part, into which the annular head of the pin is removably inserted, and the movable part is rotated to approach the fixed part, from the fixed part. Comprising an adjusting means for separating, the retaining groove for attaching the split pin,
Having an open end serving as an entrance and exit of the annular head of the split pin,
With the annular head of the cotter pin inserted into the holding groove for attaching the cotter pin, the movable means is rotated by the adjusting means so as to approach the fixed part, thereby forming one pair of the cotter pin. A tool for live wire construction of a split pin, characterized in that the distance between the tip ends of the legs is reduced. 3. A cotter pin hot-line construction tool for removing a cotter pin in a hot-line state, wherein a tool body detachably attached to a tip portion of an insulating operating rod is provided with a cotter pin removing portion, The split pin removal part is inserted with the annular head of the split pin,
An insertion groove for retaining a cotter pin having an insertion port to be retained,
A retaining pin which is provided with a slope at a tip end projecting into the split pin removing insertion groove, engages with the annular head of the split pin and holds the annular head in the split pin removing insertion groove; An openable / closable lid member provided in the split pin removal insertion groove so as to face the tip of the holding pin, and closing means for holding the lid member in a closed state; When inserting the head from the insertion opening into the insertion groove for removing the split pin, the annular head comes into contact with the slope of the tip of the holding pin and moves along the slope to move along the slope. Pressing the lid member away from the insertion groove for removing the split pin against the closing means until the tip of the holding pin engages with the inside of the cotter pin and the split pin. Wire construction tool. 4. A split pin mounting portion for attaching and detaching a split pin in a hot wire state, wherein the split pin mounting portion and a split portion are attached to a tool body detachably attached to a tip portion of an insulating operating rod. A pin removing section, the split pin attaching section includes a fixed section, a movable section that is provided so as to be able to approach and separate from the fixed section, and a pair of leg sections of the split pin from the tool body. The annular head of the split pin is detachably fitted in a state where the split pin is protruded, and a split pin mounting groove formed in the fixed part and the movable part, and the movable part is rotated to operate. Adjusting means for approaching the fixed portion and separating from the fixed portion, wherein the retaining groove for attaching the split pin,
Having an open end serving as an entrance and exit of the annular head of the split pin,
With the annular head of the cotter pin inserted into the holding groove for attaching the cotter pin, the movable means is rotated by the adjusting means so as to approach the fixed part, thereby forming one pair of the cotter pin. The split pin removal portion is configured to insert the annular head of the split pin,
An insertion groove for retaining a cotter pin having an insertion port to be retained,
A retaining pin which is provided with a slope at a tip end projecting into the split pin removing insertion groove, engages with the annular head of the split pin and holds the annular head in the split pin removing insertion groove; An openable / closable lid member provided in the split pin removal insertion groove so as to face the tip of the holding pin, and closing means for holding the lid member in a closed state; When inserting the head from the insertion opening into the insertion groove for removing the split pin, the annular head comes into contact with the slope of the tip of the holding pin and moves along the slope to move along the slope. A hot pin tool for a split pin, wherein the lid member is pressed away from the split pin removal insertion groove against the closing means until the tip of the holding pin is engaged therein. . 5. A cotter pin and a cotter pin for attaching and detaching a cotter pin and a split pin in a live state, a cotter pin and a cotter pin are attached to a tool body detachably attached to a tip end portion of an insulating operation rod. The cotter pin mounting / removing portion is provided with a detaching portion and a split pin attaching portion, and the cotter pin attaching / removing portion is provided with a cotter pin insertion groove into which a flange portion of the cotter pin is removably inserted such that a shaft portion of the cotter pin projects from the tool body. When,
The cotter pin insertion groove is provided with a tapered tip portion that protrudes and retracts into the cotter pin insertion groove and elastic means for urging the tip portion into the cotter pin insertion groove, and the flange portion of the cotter pin is inserted into the cotter pin insertion groove. A holding member for holding the cotter pin, the cotter pin insertion groove has an opening end serving as an entrance / exit of a flange of the cotter pin, and when inserting the flange of the cotter pin into the cotter pin insertion groove, the flange is While being in contact with the tapered tip portion of the holding member, a part of the tip portion is configured to be retracted from the cotter pin insertion groove against the urging force of the elastic means. A fixed portion, a movable portion that is provided so as to be able to approach and separate from the fixed portion, and an annular head of the split pin in a state where a pair of legs of the split pin protrudes from the tool body. Removable fitting A holding groove for attaching a split pin formed in the fixed portion and the movable portion to be inserted, and adjusting means for rotating the movable portion to approach the fixed portion and separate from the fixed portion; The retaining groove for pin mounting is
Having an open end serving as an entrance and exit of the annular head of the split pin,
With the annular head of the cotter pin inserted into the holding groove for attaching the cotter pin, the movable means is rotated by the adjusting means so as to approach the fixed part, thereby forming one pair of the cotter pin. A live tool for cotter pins and split pins, characterized in that the distance between the tips of the legs is reduced. 6. A cotter pin and a cotter pin for attaching and detaching a cotter pin and a cotter pin in a live state. The cotter pin and the cotter pin are attached to a tool body detachably attached to a tip portion of an insulating operating rod. A cotter pin insertion / removal part is provided with a cotter pin mounting / removing part, wherein the cotter pin flange portion is removably inserted so that a shaft portion of the cotter pin projects from the tool body. Grooves and
The cotter pin insertion groove is provided with a tapered tip portion that protrudes and retracts into the cotter pin insertion groove and elastic means for urging the tip portion into the cotter pin insertion groove, and the flange portion of the cotter pin is inserted into the cotter pin insertion groove. A holding member for holding the cotter pin, the cotter pin insertion groove has an opening end serving as an entrance / exit of a flange of the cotter pin, and when inserting the flange of the cotter pin into the cotter pin insertion groove, the flange is While being in contact with the tapered tip portion of the holding member, a part of the tip portion is configured to be retracted from the cotter pin insertion groove against the urging force of the elastic means. The annular head of the split pin is inserted,
An insertion groove for retaining a cotter pin having an insertion port to be retained,
A retaining pin which is provided with a slope at a tip end projecting into the split pin removing insertion groove, engages with the annular head of the split pin and holds the annular head in the split pin removing insertion groove; An openable / closable lid member provided in the split pin removal insertion groove so as to face the tip of the holding pin, and closing means for holding the lid member in a closed state; When inserting the head from the insertion opening into the insertion groove for removing the split pin, the annular head comes into contact with the slope of the tip of the holding pin and moves along the slope to move along the slope. Pressing the lid member away from the insertion groove for removing the split pin against the closing means until the tip of the holding pin engages with the inside of the cotter pin and the split pin. Wire construction tool. 7. A cotter pin for attaching and detaching a cotter pin and a split pin in a live state, and a cotter pin attached to a tool body detachably attached to a tip end portion of an insulating operation rod.・ Equipped with a detaching part, a split pin attaching part and a split pin detaching part, and the cotter pin attaching and detaching part is removably inserted with a flange part of the cotter pin so that a shaft part of the cotter pin projects from the tool body. Cotter pin insertion groove,
The cotter pin insertion groove is provided with a tapered tip portion that protrudes and retracts into the cotter pin insertion groove and elastic means for urging the tip portion into the cotter pin insertion groove, and the flange portion of the cotter pin is inserted into the cotter pin insertion groove. A holding member for holding the cotter pin, the cotter pin insertion groove has an opening end serving as an entrance / exit of a flange of the cotter pin, and when inserting the flange of the cotter pin into the cotter pin insertion groove, the flange is While being in contact with the tapered tip portion of the holding member, a part of the tip portion is configured to be retracted from the cotter pin insertion groove against the urging force of the elastic means. A fixed portion, a movable portion that is provided so as to be able to approach and separate from the fixed portion, and an annular head of the split pin in a state where a pair of legs of the split pin protrudes from the tool body. Removable fitting A holding groove for attaching a split pin formed in the fixed portion and the movable portion to be inserted, and adjusting means for rotating the movable portion to approach the fixed portion and separate from the fixed portion; The retaining groove for pin mounting is
Having an open end serving as an entrance and exit of the annular head of the split pin,
With the annular head of the cotter pin inserted into the holding groove for attaching the cotter pin, the movable means is rotated by the adjusting means so as to approach the fixed part, thereby forming one pair of the cotter pin. The split pin removal portion is configured to insert the annular head of the split pin,
An insertion groove for retaining a cotter pin having an insertion port to be retained,
A retaining pin which is provided with a slope at a tip end projecting into the split pin removing insertion groove, engages with the annular head of the split pin and holds the annular head in the split pin removing insertion groove; An openable / closable lid member provided in the split pin removal insertion groove so as to face the tip of the holding pin, and closing means for holding the lid member in a closed state; When inserting the head from the insertion opening into the insertion groove for removing the split pin, the annular head comes into contact with the slope of the tip of the holding pin and moves along the slope to move along the slope. The lid member is pressed away from the split pin removal insertion groove against the closing means until the tip of the holding pin is engaged therein. Wire construction tool.