JP2000201412A - Connecting and clamping device, insulating cover attaching device provided therewith, and insulating cover attaching method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately put an insulating cover to the cut part of an insulating coating of a covered wire cut by a contact blade by mounting an insulating cover attaching mechanism on the main body frame of a connecting and clamping device. SOLUTION: A connecting and clamping device provided with a contact blade 40 which is brought into contact with the conductor section 52 of a covered wire 50 through the insulating coating 51 of the wire 50 is also provided with an insulating cover attaching mechanism 30 which puts an insulating cover on the part of the insulating coating 51 cut by the blade 40. The covered wire 50 is restored after the drawing work of a by-pass line and a grounding cable from an overhead distribution line, etc., in a hot-line state is completed, but, in this case, the contact blade 40 is separated form the covered wire 50 by rotating a threaded shaft 41. When a clamping member is moved to a position immediately below the cut part of the insulating coating 51 or its vicinity by turning a main shaft in one direction by means of an operating arm 35, and the main shaft is further turned to press the opening of the insulating cover against the cut part of the insulating coating 51 thereafter, the insulating cover is put in the cut part of the insulating coating 51. Therefore, the insulating cover can be put accurately on the cut part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting clamp device, an insulating cover mounting device provided with the connecting clamp device, and an insulating cover mounting method. The present invention relates to an apparatus and a method for repairing an insulating covering by covering an insulating covering portion of a covered electric wire penetrated by a contact blade after performing an operation of drawing a bypass line and a ground line from an overhead distribution line or the like in a state.

[0002]

Conventionally, during construction of an overhead distribution line, a method of drawing a bypass line and a ground line from an overhead distribution line or the like so as to prevent power transmission from being stopped so that only the construction site is in a no-voltage state. Has been taken. Conventionally, when drawing out a bypass line or a ground line from an overhead distribution line, etc., the insulation coating of the wire is stripped off to a predetermined length, and the exposed conductor is directly
A method of clamping a connection clamp has been adopted. But,
According to this method, the work of stripping the insulating coating is troublesome, and in order to eliminate this, a connection clamp device having a contact blade penetrating the insulating coating has recently been used.

[0003] In the case of using this type of connection clamping device, it is necessary to repair the insulating coating damaged by the contact blade after the completion of the construction. For this restoration, usually, a method of wrapping an adhesive insulating tape around the insulating coating portion through which the contact blade has penetrated is adopted, but it is troublesome and dangerous because the work is performed at a high place. And other problems were pointed out.

For this reason, as disclosed in, for example, Japanese Utility Model Publication No. Hei 6-31613, an insulating putty is applied to the inner wall of a substantially C-shaped cross-section elastic cover body having a mounting port along the longitudinal direction. There has been proposed an insulating cover in which a knob is detachably provided on an outer wall of an elastic cover body. According to this, the knob is sandwiched by the tip of an insulating operating rod, so-called Yatco, and the insulating cover is covered by operating the insulating operating rod from the ground, a temporary scaffold attached to a telephone pole, or a workbench (bucket). They are pressed against electric wires to cover the insulation coating.

[0005] However, the portion of the insulating coating damaged by the contact blade is only a few centimeters long, and does not cover the entire circumferential direction of the insulating coating.
It is practically difficult to accurately position and cover the insulating cover from the ground, from a temporary scaffold attached to a telephone pole, or from a workbench (bucket). There is a need to solve the problem.

According to the present invention, there is provided a connection clamp device capable of accurately covering an insulating cover portion of an insulated wire of a covered electric wire damaged by a contact blade of the connection clamp device, an insulation cover attaching device having the connection clamp device, And a method for mounting an insulating cover.

[0007]

According to an apparatus of the present invention for achieving the above object, there is provided a connecting clamp device provided with a contact blade which penetrates an insulating coating of a covered electric wire and contacts a conductor portion of the covered electric wire. On the device body frame of the connection clamp device attached to the insulated wire, cover the insulated cover portion where the contact blade of the insulated wire has penetrated,
It is characterized by being equipped with an insulating cover mounting mechanism.

Here, the insulating cover mounting mechanism is provided, for example, such that the insulating cover having a mounting port over the entire longitudinal direction, which covers an insulated wire, is detachably gripped, and the insulating cover is swingably mounted on the apparatus body frame. And an operating member for moving the gripping member to cover the insulating cover on the gripping member with the insulating coating portion of the covered electric wire through which the contact blade has penetrated.

According to another apparatus of the present invention for achieving the above object, there is provided an apparatus main body frame detachably attached to a covered electric wire, and having a contact with a conductor portion of the covered electric wire through an insulating coating of the covered electric wire. A contact blade movably mounted on the device main body frame, an operating member slidably mounted on the device main body frame, and an insulation having a mounting port over the entire longitudinal direction to cover the insulating coating of the coated electric wire. The cover is detachably gripped, and is provided at one end of the operating member, where the contact blade approaches the insulated coating portion of the insulated wire through which the contact blade has penetrated when the operating member is rotated. A gripping member for detachably gripping the insulating cover.

Further, according to the method of the present invention for achieving the above object, an apparatus body frame detachably attached to a covered electric wire, and penetrating an insulating coating of the covered electric wire to come into contact with a conductor portion of the covered electric wire. A contact blade movably mounted on the device main body frame, an operating member slidably mounted on the device main body frame, and an insulating cover for covering an insulating coating of the covered electric wire, detachably gripping the operating member; By means of a device comprising a gripping member provided at one end of the wire, in a method of mounting an insulating cover on the insulating coating portion of the coated electric wire through which the contact blade has penetrated, and on the gripping member, in the longitudinal direction A step of attaching an insulating cover having a mounting port over the whole, and after separating the contact blade from the coated electric wire, rotate the operating member to remove the insulating cover on the gripping member. A step of putting the insulating cover on the gripping member over the insulating covering portion by approaching the insulating covering portion through which the contact blade of the covered electric wire has penetrated; and a step of removing the device body frame from the covered electric wire. It is characterized by comprising.

[0011]

1 is an overall perspective view showing an embodiment of the apparatus according to the present invention, FIG. 2 is a front view of the apparatus with a part cut away, FIG. 3 is a side view thereof, and FIG. Is penetrated through the insulation coating, and a side sectional view of a state in which a bypass wire, a ground wire, and the like are drawn from the coated electric wire, FIG.
FIG. 6 is a partial cross-sectional side view showing a process of covering an insulating cover at an insulating coating portion penetrated by the contact blade, FIG.
7 is a front view of a main shaft portion of the insulating cover mounting mechanism, FIG. 8 is a plan view of a gripping member portion of the insulating cover mounting mechanism, FIG. 9 is a side view thereof, and FIG. 10 is a side view of a claw piece of the gripping member shown in FIG. Figure,
11 is a rear view of the same, FIG. 12 is a perspective view showing an insulating coating portion penetrated by the contact blade, FIG. 13 is a perspective view of the insulating cover, and FIG. 14 is a partial perspective view of the coated electric wire with the insulating cover covered. is there.

The apparatus of the present embodiment shown in FIGS.
Penetrating the insulating coating 51 of the insulated wire 50
An insulating cover mounting mechanism for covering an insulating cover 60 (see FIGS. 12 and 13) on an insulating coating portion 53 through which the contact blade 40 has penetrated, on a connection clamping device provided with a contact blade 40 that comes into contact with the conductor portion 52 of FIG. It is equipped with 30.

As shown in FIGS. 1 and 2, a main body frame 10 is composed of a pair of left and right side plates 11, 1 standing substantially vertically.
1, a lower block piece 12 extending substantially horizontally is provided between lower end portions of the pair of left and right side plates 11 and 11, and an upper plate 13 extending in parallel to the lower block piece 12 is provided between upper end portions. It is provided and has a substantially rectangular frame shape as a whole. Opening portions 14 each of which is cut out in a substantially U-shape are provided at the center of the front ends of the left and right plates 11, 11 in the vertical direction. 15 are provided.

The apparatus body frame 10 is attached to (suspended on) the covered electric wire 50 on the apparatus body frame 10.
Is provided with a clamping mechanism 20. The clamp mechanism 20 has a screw shaft 21 that extends in the up-down direction (vertical direction) by screwing through a screw hole 122 (see FIG. 4) of a protruding portion 121 provided in the front center portion of the lower block piece 12. The upper end of the screw shaft 21 is rotatably connected to the center of a horizontal block 22 extending in a substantially horizontal direction. At the lower end of the screw shaft 21, a cylindrical connecting fitting (socket) 25 is provided for connecting to the upper end of an insulating operating rod (not shown).
On both left and right sides of the horizontal block 22, left and right side plates 23, 23 extending rearward so as to sandwich the left and right side plates 11, 11 of the apparatus frame body 10 are provided. These left and right side plates 23,
Reference numeral 23 denotes a member which slides on the left and right side plates 11, 11 of the apparatus frame main body 10, and has openings 1 of the left and right side plates 11, 11.
4 and a concave portion 15 on the upper end surface of the portion covering the
Is provided with a concave portion 24 cut out in a substantially mountain shape for holding the same.

When the screw shaft 21 screwed into the screw hole 122 is rotated in one direction by the insulating operation rod, the screw shaft 21 is rotated.
Moves upward while rotating in one direction with respect to the lower block piece 12. At this time, the horizontal block 22 is rotatable with respect to the screw shaft 21, and the left and right side plates 23, 23 provided on the left and right side surfaces are connected to the left and right side plates 11,
Since it is in contact with 11 and is prevented from rotating, it is moved upward together with the screw shaft 21 while being kept substantially horizontal without being rotated by the screw shaft 21. As a result, the concave portion 24 approaches the concave portion 15 and the covered electric wire 50 is gripped by the concave portions 15 and 24. Further, the screw shaft 21 is provided by the insulating operation rod.
Is rotated in the opposite direction, the screw shaft 21 moves downward while rotating in the other direction with respect to the lower block piece 12.
As a result, the recess 24 is separated from the recess 15, and the recesses 15,
The covered electric wire 50 can be removed from the space 24.

A screw hole 123 is provided in the center of the lower block 12 of the apparatus main body frame 10 so as to penetrate in a vertical direction (vertical direction). The screw hole 123 is provided in the screw hole 123 to support the contact blade 40. Are threaded through. The screw shaft 41 is located behind the screw shaft 21 and extends in the vertical direction (vertical direction) similarly to the screw shaft 21. Screw shaft 41
The center of the support block 42 of the contact blade 40 is rotatably connected to the upper end of the contact blade 40. Further, the lower end of the screw shaft 41 is connected to the upper end of an insulating operation rod (not shown).
A cylindrical connection fitting (socket) 43 is provided. The support block 42 is provided with a mounting terminal block 44 that is electrically conductive with the contact blade 40 and extends obliquely downward behind the apparatus body frame 10 (see FIG. 4). A lead wire 45 is connected to the mounting terminal block 44, and a bypass line and a ground line are drawn out. Further, the support block 42 is provided with a guide rod 46 that projects in the left-right direction in a substantially horizontal state. The ends of the guide rods 46 are provided with vertically extending guide grooves 111 provided on the left and right side plates 11 of the apparatus body frame 10.
And 111 is movably engaged in the vertical direction. Contact blade 40
Although not shown in detail, is a cut-through blade formed by arranging a plurality of needle-shaped projections on the left and right side edges of a rectangular substrate at appropriate intervals in the length direction.

When the screw shaft 41 screwed into the screw hole 123 is rotated in one direction by the insulating operation rod, the screw shaft 41 is rotated.
Moves upward while rotating in one direction with respect to the lower block piece 12. At this time, the support block 42 is
And the ends of the guide rods 46 are engaged with the guide grooves 111 and 111 to prevent rotation, so that the guide rods 46 are not rotated by the screw shaft 41 and are It moves upward while being kept substantially horizontal while being guided. As a result, the contact blade 40 is insulated from the insulated coating 5 of the insulated wire 50 gripped by the clamp mechanism 20.
1 and can be brought into contact with the conductor portion 52. When the screw shaft 41 is rotated in the opposite direction by the insulating operation rod, the screw shaft 41 moves downward while rotating in the other direction with respect to the lower block piece 12. This allows
The contact blade 40 can be separated from the coated electric wire 50.

As shown in FIGS. 2 and 4, the left and right side plates 1 at the upper rear side of the apparatus body frame 10 (on the rear side of the upper plate 13).
A main shaft 31 of the insulating cover mounting mechanism 30 is rotatably arranged in a substantially horizontal state via support pins 32, between the first cover 11 and the second cover 11. Here, the support pins 32, 32 are screwed and fixed in screw holes (not shown) provided on both end surfaces in the axial direction of the main shaft 31, and can be rotated in the mounting holes 11a, 11a of the left and right side plates 11, 11. Supported by The main shaft 31 has an insulating cover 6
And a gripping member 33 for detachably gripping 0 is attached,
An operation arm 35 for rotating the main shaft 31 is attached.

As shown in FIG. 7, a mounting seat 311 for fixing the gripping member 33 (connecting plate 34) is formed at the center of the main shaft 31 in the longitudinal direction. Mounting seat 31 for fixing arm 35
2, 312 are formed.

When the main shaft 31 is rotated by the operation arm 35, the gripping member 33 moves to substantially below the insulating coating portion 53 of the insulated wire 50 through which the contact blade 40 has penetrated, and 53 (see FIG. 5). The main body portion 332 of the gripping member 33 is fixed to one end of a connecting plate 34 via a fastening means such as a bolt, and the other end of the connecting plate 34 is fixed to a mounting seat 311 of the main shaft 31 via a fastening means such as a bolt. Is done. That is, the main body portion 332 is connected to the main shaft 31 via the connection plate 34. This body part 33
6, a V-shaped groove 331 in which an insulating cover 60 is placed is provided on the upper surface thereof along the longitudinal direction, as shown in FIGS. V-shaped cross section 3 of main body portion 332
As shown in FIGS. 10 and 11, the claw 333 disposed at both ends in the longitudinal direction of the base 31 is provided with a wedge-shaped projection 334 at an upper central position on the back side thereof, and a long portion is provided at the central portion thereof. A hole 335 is provided. The wedge-shaped projection 334 has a thickness that is reduced toward the lower side, and is detachably engaged with the notches 61 provided at both ends in the longitudinal direction of the insulating cover 60, whereby the insulating cover 60 is connected to the main body part. 332 is detachably gripped in a V-shaped groove 331 in cross section. Nail piece 333
The bolt 336 is inserted into the main body portion 332 through the elongated hole 335.
Into the V-shaped groove 3 of the main body portion 332.
31 are attached at both ends in the longitudinal direction. Bolt 3
The coil spring 3 is located between the head of the
37 are arranged in a slightly compressed state. Therefore, the claw piece 333 can swing with respect to the main body portion 332 with the bolt 336 as a fulcrum, and is normally urged toward the main body portion 332 by the resilient force of the coil spring 337. Is placed in the V-shaped groove 331 or when the insulating cover 60 is put on the insulated wire 50 from the V-shaped groove 331, the wire is once separated from the main body portion 332 against the elastic force of the coil spring 337. To rotate. Here, the elastic resilience of the coil spring 337 is determined during the process of covering the insulated cover 60 on the insulated wire 50.
However, when the insulating cover 60 covers the covered electric wire 50 to some extent, the claw 333 comes off the insulating cover 60 and the insulating cover 60 is inserted into the V-shaped groove 3.
It is set to such an extent that it is not pulled back into Further, since the protrusion 334 of the claw piece 333 to be locked to the insulating cover 60 is formed in a wedge shape so as to be thicker upward and thinner below.
The insulating cover 60 covers the covered electric wire 50 to some extent,
When trying to separate from the V-shaped groove 331, the claw 333 is pressed by the insulating cover 60 and pivotally opens with the bolt 336 as a fulcrum (the claw 333 is pivoted away from the main body 332). ). Notch 61 of insulating cover 60
When the notch 61 of the insulating cover 60 approaches the moment when the protrusion 334 comes off from the protrusion 334, that is, when the notch 61 of the insulating cover 60 approaches the thickest portion of the protrusion 334, the claw piece 333 is opened most. After the notch 61 of the insulating cover 60 comes off the projection 334, the claw piece 333 is formed.
Returns to the main body portion 332 side due to the resilient force of the coil spring 337. In other words, since the protrusion 334 is formed in a wedge shape so as to be thicker upward and thinner below, when the protrusion 334 is disengaged from the notch 61 and the claw 333 returns to the original position, the end of the insulating cover 60 ( Notch 61) is projection 33
4 as a result, the protrusion 334 easily comes off the notch 61.

As shown in FIGS. 5 and 6, the operating arm 35 includes a pair of left and right arm pieces 351 and 351 and a horizontal operating rod 352 provided between upper ends of the arm pieces 351 and 351.
It is composed of The lower ends of the left and right arm pieces 351 and 351 are attached to the mounting seat 31 of the main shaft 31 via fastening means such as bolts.
2,312. A hook piece provided at the upper end of an insulating operation rod (not shown) is engaged with the horizontal operation rod 352 so as to be freely detachable. When the insulating operation rod is moved downward (pulled down) in a state where the hook piece is locked to the horizontal operation rod 352, the main shaft 31 rotates as shown by a solid line in FIG. 33 approaches the covered electric wire 50 clamped by the clamp mechanism 20.

Coil springs 36 are wound around both ends in the axial direction of the main shaft 31, that is, the portions approaching the left and right side plates 11 of the apparatus body frame 10. One end of the coil spring 36 is locked to the pin 353 of the arm piece 351 of the operation arm 35,
The other end is locked to the pin 16 on the inner surface of the left and right side plates 11, 11, and the gripping member 33 (the main shaft 31, the operation arm 35)
At the position indicated by the imaginary line (two-dot chain line) in FIG.
The connection clamp device is held at a position that does not interfere with the contact blade 40, the screw shaft 41, and the like. The pins 16 in FIGS. 4 and 5 are illustrated as if they were provided on the inner surface of the side plate 11 shown in FIG. It should be noted that there is also provided.

The insulating cover 60 is formed of a pipe made of an elastic material, and is set to have a length sufficient to cover the insulating coating portion 53 (see FIG. 12) through which the contact blade 40 has penetrated. As shown in FIG. 13, the insulating cover 60 is provided with a mounting opening (opening) 62 extending over the entire longitudinal direction, and the notches 61 are provided at both ends in the longitudinal direction as described above. When a knob or the like is provided at an appropriate position of the insulating cover 60 and the knob or the like is gripped by the gripping member 33, the notches 61 and 61 can be omitted. In addition, even when a knob or the like is not provided on the insulating cover 60, the notch 61 can be omitted by providing a mechanism for temporarily attaching and detaching the insulating cover 60 to the gripping member 33. That is, it should be noted that the notch 61 is not always necessary. Insulation cover 6
The insulating putty 63 is formed to a predetermined thickness on the inner peripheral surface of the zero, and the inner diameter (the inner diameter of the insulating putty 63 portion) is set slightly smaller than the outer diameter of the covered wire 50 to be treated. .
A release paper (not shown) is releasably attached to the surface of the insulating putty 63 so that the insulating putty 63 is exposed immediately before use.

Next, using the connection clamp device of the above embodiment, a work of drawing out a bypass line and a ground line from an overhead distribution line or the like in a live state is performed, and after this work is completed, the covered electric wire 50 is repaired. (An embodiment of the insulating cover mounting method of the present invention) will be described.

First, the horizontal block 22 and the support block 42 of the contact blade 40 are lowered to their substantially lower limit positions, and the opening 14 is wide open. Also, the insulating cover 60 is inserted into the V-shaped groove 331 of the holding member 33 in the opening 6.
Then, the protrusion 334 of the claw 333 is locked in the notch 61. Then, the apparatus main body frame 10 is hung at an appropriate position on the insulated wire 50 so that the insulated wire 50 is located in the concave portion 15 using an insulating operation rod or the like (not shown). Next, the upper end of the insulating operation rod (not shown) is connected to the connection fitting 25, the screw shaft 21 is rotated in one direction to raise the horizontal block 22, and the insulated wire 50 is clamped by the recess 15 and the recess 24. I do. Thereafter, the upper end of the insulating operation rod (not shown) is connected to the connection fitting 43, the screw shaft 41 is rotated in one direction to raise the contact blade 40, and the contact blade 40 is insulated from the insulated wire 50. Coating 51
To make contact with the conductor portion 52. This allows
Lead wire 4 connected from the insulated wire 50 to the mounting terminal block 44
5, a current flows to bypass line 5 and a ground line. In this way, while maintaining the power transmission state, construction is performed with only a predetermined section in a no-voltage state.

After the completion of the construction, the screw shaft 41 is rotated in the other direction opposite to the previous direction by the insulating operation rod (not shown) to lower the contact blade 40 and separate it from the insulated wire 50. Then, the insulating cover 60 is put on the insulating covering portion 53 through which the contact blade 40 has penetrated, and the repair work of the covered electric wire 50 is performed. At this time, the contact blade 40 is first lowered to its lower limit position. Next, when the hook provided at the tip of the insulating operating rod (not shown) is hooked on the horizontal operating rod 352 and the insulating operating rod is pulled downward, the operating arm 35 causes the main shaft 31 to resist the resilient force of the coil springs 36, 36. Then, as shown in FIG. 5, the gripping member 33 is moved to a position substantially immediately below the insulating covering portion 53. When the main shaft 31 is further rotated by the operation arm 35 so that the opening 62 of the insulating cover 60 is pressed against the insulating covering portion 52, the opening 62 is expanded and the insulating cover 6 is opened.
0 is inserted into the insulating coating portion 52 from the V-shaped groove 331. At this time, the claw pieces 333 located at both ends in the longitudinal direction of the V-shaped cross section 331 open once so as to be separated from the main body portion 332, and return to the original position when the insulating cover 60 comes off from the V-shaped cross section 331. . When the insulating cover 60 is put on the insulating covering portion 52 in this way, when the hook of the insulating operation rod is removed from the horizontal operation rod 352, the main shaft 31 rotates in the other direction due to the restoring elasticity of the coil spring 36. Then, the gripping member 33 and the operation arm 35 are returned to the imaginary line position (two-dot chain line position) in FIG.

Thereafter, the screw shaft 21 is rotated in the other direction opposite to the previous direction, the horizontal block 22 is moved to its lower limit position, and the apparatus body frame 10 is lowered from the covered electric wire 50.

As described above, according to the apparatus of the present embodiment, since the insulating cover mounting mechanism 30 is provided on the apparatus main body frame 10 of the connection clamp device provided with the contact blades 40, the contact blades 40 penetrate. The insulating cover portion 53, which has been used, can be easily, accurately, and quickly covered with the insulating cover 60, thereby greatly improving workability.

In the above embodiment, the case where the connection clamp device is provided with the insulating cover mounting mechanism 30 is shown. However, the present invention is not limited to this. For example, the contact blade 40 may be provided on the insulating cover mounting device.
May be provided so as to be movable (so as to be able to contact and separate from the covered electric wire 50). In this case, for example, the insulating cover mounting device includes a device main body frame 10 that is detachably attached to the insulated wire 50, and an insulating cover 51 of the insulated wire 50 that penetrates the insulated coating 51 and contacts the conductor portion 52 of the insulated wire 50. A contact blade 40 movably mounted on the main frame of the device 10, an operating member (spindle 31 and operation arm 35) slidably mounted on the main frame 10 of the device,
An insulating cover 60 having a mounting opening (opening 62) over the entire longitudinal direction, which is placed over the insulating cover 51, is detachably gripped, and the operating member, which is one end of the operating member, is rotated. The contact blade 40 is configured by a gripping member 33 and the like provided at a portion approaching the insulating coating portion 52 of the covered electric wire 50 through which the contact blade 40 penetrated. This insulating cover mounting device is also similar to the connection clamp device described above,
It is easy to place the insulation coating 53 through which the contact blade 40 has penetrated,
It is possible to cover the insulating cover 60 accurately and quickly.

Further, the contact blade 40, the screw shaft 41, the support block 42 and the like can be detachably mounted on the apparatus main body frame 10. In this case, after the construction is completed, the contact blade 40 and the like are removed from the apparatus main body frame 10. Thus, the work of immediately attaching the insulating cover 60 can be performed, and it is not necessary to move the contact blade 40 and the like to the lower limit position.

[0031]

As described above, according to the present invention,
A contact blade that penetrates through the insulating coating of the covered electric wire and comes into contact with the conductor portion of the covered electric wire, and an insulating coating portion where the contact blade of the covered electric wire has penetrated into the device body frame detachably attached to the covered electric wire. It is equipped with an insulating cover mounting mechanism that covers the insulating cover, so that after the work of drawing out the bypass line and the ground line from the overhead distribution line etc. in the live state, the contact blade is retracted from the coated electric wire and the contact It is possible to accurately cover the insulating cover of the covered electric wire penetrated by the blade with the insulating cover, and to repair the insulating cover.

[Brief description of the drawings]

FIG. 1 is a general perspective view showing an embodiment of the apparatus of the present invention.

FIG. 2 is a front view partially cut away.

FIG. 3 is a side view of the same.

FIG. 4 is a side sectional view showing a state in which a contact blade is pierced through an insulating coating to draw out a bypass line, a ground line, and the like from the coated electric wire.

FIG. 5 is a plan view illustrating a relationship between a stranded wire and a contact blade.

FIG. 6 is a partial cross-sectional view showing a process in which an insulating cover is put on an insulating coating portion penetrated by the contact blade after removing the contact blade from the coated electric wire.

FIG. 7 is a front view of a main shaft portion of the insulating cover mounting mechanism.

FIG. 8 is a plan view of a grip member portion of the insulating cover mounting mechanism.

FIG. 9 is a side view of the same.

FIG. 10 is a side view of the claw piece of the gripping member shown in FIG.

FIG. 11 is a rear view of the same.

FIG. 12 is a perspective view showing an insulating coating portion penetrated by a contact blade.

FIG. 13 is a perspective view of an insulating cover.

FIG. 14 is a partial perspective view of the covered electric wire in a state where an insulating cover is covered.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Device main body frame 20 Clamp mechanism 30 Insulation cover attaching mechanism 31 Main shaft 32 Support pin 33 Grasping member 331 V-shaped groove 332 Main part 333 Claw piece 334 Projection 35 Operation arm 40 Contact blade 50 Insulated wire 53 Insulated coating part 60 Insulation cover

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masamoto Ojiri 4-11-29 Nishitenma, Kita-ku, Osaka-shi, Osaka Daito Denshi Co., Ltd. F term (reference) 5E051 AA10 AB10 AC02 JA01 JB10

Claims (8)

[Claims] 1. A connection clamp device provided with a contact blade penetrating an insulating coating of a covered electric wire and coming into contact with a conductor portion of the covered electric wire, wherein the device body frame of the connection clamp device attached to the covered electric wire includes A connection clamp device for mounting an insulation cover on an insulation cover portion through which the contact blade has penetrated. 2. The connection clamp device according to claim 1, wherein the insulating cover attaching mechanism detachably holds an insulating cover having a mounting opening over the entire longitudinal direction, the insulating cover covering the covered electric wire, An operating member that is swingably mounted on the apparatus main body frame and moves the gripping member to cover the insulating cover on the gripping member with an insulating coating portion of the coated electric wire through which the contact blade has penetrated. A connection clamp device. 3. The connection clamp device according to claim 2, wherein the gripping member is one end of the operation member,
When the operating member is rotated, the contact blade is provided at a portion approaching an insulating coating portion of the covered electric wire through which the contact blade has penetrated, and the gripping member is provided between the operating member and the apparatus body frame. A connection clamp device comprising an urging member for urging in a direction separating from the contact blade. 4. The connection clamping device according to claim 2, wherein the gripping member is provided with a claw for detachably gripping the insulating cover. 5. An apparatus main body frame detachably attached to a covered electric wire, and a contact blade movably mounted on the apparatus main body frame, penetrating an insulating coating of the covered electric wire and contacting a conductor portion of the covered electric wire. An operation member swingably mounted on the device body frame; and an insulating cover having a mounting port over the entire longitudinal direction, which covers an insulating coating of the covered electric wire, and detachably grips the one end of the operation member. And a gripping member provided at a portion approaching an insulating coating portion of the coated electric wire through which the contact blade has penetrated when the operating member is rotated, wherein the gripping member includes An insulating cover mounting device, comprising a claw for detachably holding the insulating cover. 6. The insulating cover mounting device according to claim 5, wherein the contact blade is detachably mounted on the device main body frame. 7. An apparatus main body frame detachably attached to a covered electric wire, and a contact blade movably mounted on the apparatus main body frame, penetrating an insulating coating of the covered electric wire and contacting a conductor portion of the covered electric wire. And an operating member swingably mounted on the device body frame, and a gripping member mounted on one end of the operating member for detachably gripping an insulating cover for covering the insulating coating of the covered electric wire. By means of a device, a method of attaching an insulating cover to the insulated coating portion of the insulated wire through which the contact blade has penetrated, a step of attaching an insulative cover having an attachment port over the entire longitudinal direction on the gripping member, After separating the contact blade from the insulated wire, the operating member is rotated to insulate the insulated cover on the gripping member through which the contact blade of the insulated wire has penetrated. Wherein the step of covering the insulating cover to the insulating coating portion, the insulating cover mounting method comprising the apparatus body frame that is formed by and a step of removing from said covered wire on the gripping member is brought closer to the position. 8. The method according to claim 7, wherein the contact blade is detachably mounted on the device main body frame, and the operation is performed after the contact blade is detached from the device main body frame. A method for mounting an insulating cover, comprising rotating a member.