JPH06179415A - Electric wire binding tool - Google Patents

Abstract

PURPOSE:To provide a wire binding tool which is attached to a working machine and automatically wind a binding wire around electric wires while tightening the electric wires. CONSTITUTION:For the electric wire binding tool, a rotor 17 which is rotatably supported by a main body 12, and of which the side part is opened in the axial direction, and in which a plurality of electric wires 1 can be taken in and taken out, and a driving means to rotate the rotor 17, which is arranged on the main body 12, are provided. In addition, a drum 25, on the outer peripheral surface of which a spiral groove to wind the binding wire 4 is formed, and which is rotatably attached to one end of the rotor 17 in such a manner that it protrudes to the outside of the rotor 17 in the radial direction while an appropriate damping force is being applied, and winds the binding wire 4 which is wound in the spiral groove, and the starting end of which is fastened to the main body, around the electric wires 1 while tightening the binding wire 4 by revolving around the electric wires while rotating, accompanying with the rotation of the rotor 17, is provided. Then, a stopping means which is inserted between the main body 1 and drum 25, and stops the rotor 17 when the rotor 17 has rotated a specified number of times since the start of the winding of the binding wire 4, is provided for the constitution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire binding tool for winding and binding a plurality of electric wires around a binding wire.

[0002]

2. Description of the Related Art When connecting a low voltage transformer for household use to an overhead high voltage electric wire, a core wire 1a of a high voltage electric wire (main wire) 1 and a connecting wire for branching (hereinafter referred to as "PD wire") as shown in FIGS. ) 2 and the core wire 2a are electrically and mechanically connected and fixed by the connector 3, and the high voltage electric wire 1 near the connector 3
While binding the binding wire 4 (FIG. 2) around the PD wire 2 and the PD wire 2 while tightening the PD wire 2, the PD wire 2 is supported by the high-voltage wire 1 to reduce the load applied to the connection portion of the PD wire 2 with the connector 3. I try to prevent the runout.

Conventionally, the binding wire 4 is wound several times by an operator wearing a protection tool such as high-pressure gloves and manually winding it, and using a pinching tool such as pliers to cross both ends 4a and 4b several times. The PD wire 2 is fixed to the high-voltage electric wire 1 by twisting and cutting the tip.

[0004]

In recent years, power distribution work at high places such as overhead lines has been performed using manipulators. However, since the manipulator for distribution work has a limited operation range, it is difficult to wind the bind wire 4 around the high voltage electric wire 1 and the PD wire 2 while tightening the bind wire 4 as described above. Is currently delayed.

The present invention has been made in view of the above points, and an object thereof is to provide an electric wire binding tool capable of automating the work of winding a plurality of electric wires while tightening the binding wires.

[0006]

To achieve the above object, according to the present invention, a main body fixed to a gripping part attached to a working machine is rotatably supported, and a side part is opened in an axial direction. A rotor capable of taking in and taking out a plurality of electric wires therein, a drive unit arranged in the main body for rotating the rotor, and a spiral groove around which a bind wire is wound are formed on an outer peripheral surface, and the rotor is provided at one end of the rotor. Is rotatably attached so as to extend outward in the radial direction with an appropriate braking force, and rotates around the electric wire as the rotor rotates to be wound around the spiral groove and the start end thereof to the main body. A drum for winding the bind wire locked to the wire while tightening it around the electric wire, and the rotor interposed between the main body and the rotor to rotate the rotor for a predetermined period from the start of winding the bind wire. Is obtained by a structure in which a stopping means for stopping the time.

[0007]

WORKING MACHINE For example, a manipulator is equipped with a tool-side grip, and a bind wire is wound around a spiral groove of a drum. Next, a plurality of electric wires for winding the bind wires are taken into the rotor, and the rotor is rotated by the drive mechanism. The drum revolves around the electric wire as the rotor rotates and rotates around the electric wire to wind the bind wire around the electric wire. The drum is rotated by being applied with an appropriate braking force and can be wound around the electric wire while tightening the bind wire.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. 3 and 4, the electric wire binding tool 10
The main body 12 is fixed to the grip portion 11, the bind wire winding mechanism 13 is provided on one side of the main body 12, and the bind wire twisting mechanism 14 is provided on the other side. A drive mechanism 15 (FIGS. 9 and 14) for driving the bind wire winding mechanism 13 and the bind wire twisting mechanism 14 is provided.

A large-diameter hole 12a is horizontally provided at an upper part of one side of the main body 12 (FIG. 3). The hole 12a has an upper part one side (upper right) of about 1/3 along the circumferential direction. It is cut out and opened (FIGS. 4 and 6). The rotor 17 of the binding wire winding mechanism 13 has a thick-walled cylindrical shape and is rotatably fitted in the hole 12a. The peripheral wall 17a has a hole 12a.
Corresponding to the opening, about 1/3 is cut out and opened along the circumferential direction (FIG. 5), and the opening can be opened and closed by the peripheral wall 17b. One end of this peripheral wall 17b is
It is pivotally supported at one end of the peripheral wall 17a. End plate 1 of body 12
A notch 12b (FIG. 4) corresponding to the hole 12a is provided at the upper end of 2B.
Are provided to support the electric wire 1 and the PD wire 2.

The rotor 17 has an annular gear 1 on one end surface.
8 (FIGS. 3 and 14) is fixed, and like the peripheral wall 17b of the rotor 17, a part of the gear 18 can be opened approximately 1/3 along the circumferential direction. This rotor 1
The stopper 7 (FIGS. 5 and 6) fixed to one open end of the hole 12a of the body 12 prevents the member 7 from departing.

A base end of a bracket 21 is fixed near the open end of one end surface of the rotor 17 (FIGS. 3 and 5), and a cylindrical drum shaft 22 is attached to the tip of the bracket 21 as shown in FIG. Are rotatably supported by a screw shaft 23. A thrust washer 24 is provided between each end surface of the drum shaft 22 and the head of the screw shaft 23 and the bracket 21, respectively.
24 are interposed. These thrust washers 2
Reference numerals 4 and 24 give a tension to the bind wire, that is, a braking force to the rotation of the drum shaft 22 for tightening and winding the bind wire. In addition, on the base end side of the outer peripheral surface of the drum shaft 22, the ridges 22 are formed along the longitudinal direction at both end positions on the diameter.
a and 22a are formed (FIGS. 7 and 8), and each ridge 2
A substantially hemispherical recess 22b is provided in the center of the outer peripheral surface of 2a. A drum 25 is detachably attached to the drum shaft 22.

As shown in FIGS. 7 and 8, the drum 25 has protrusions 22a, 22 of the drum shaft 22 on the inner peripheral surface of the shaft hole 25a.
Grooves 25b, 25b that fit with a are approximately 1 on both sides in diameter.
The shaft holes 26 of the end plate 26 are provided symmetrically at every / 4 circle.
Notch 26 for letting in and out the protrusions 22a, 22a
b and 26b are provided. A groove 25c is spirally formed on the outer peripheral surface of the drum 25 from the front end to the rear end.

The groove 25c is for winding the binding wire, and is formed deep so that the binding wire does not slip. Further, the groove pitch is set by the movement amount of the wire wound once around the electric wire and the diameter of the drum 25 in order to wind the bind wire without a gap. The outer peripheral surface of the rear end 25d of the drum 25 is flat without grooves so that the winding end portion of the bind wire can be easily separated from the drum 25.

The rear end 25d of the drum 25 has a shaft hole 25a.
Screw holes 25 penetrating to the other ends of the grooves 25b and 25b
e (FIG. 7) are provided in the radial direction, and the ball plungers 27 are respectively screwed into the holes. Each ball plunger 2
Each tip of 7 is engageable with a recess 22b of each protrusion 22a of the drum shaft 22, respectively. The drum shaft 22 is
The protrusions 22a and 22a are fitted and inserted into the shaft holes 26a and 25a of the end plate 26 and the drum 25.
It is inserted into one side of the grooves 25b, 25b of the shaft hole 25a through 26b. In this state, when the drum 25 is rotated about a quarter turn (90 °) in the direction of the arrow in FIG. 7, each protrusion 22a of the drum shaft 22 moves to the other side of each groove 25b, and each of the outer peripheral surfaces moves. The tip of each ball plunger 27 engages with the recess 22b. As a result, the drum 25 is fixed to the drum shaft 22. When removing the drum 25 from the drum shaft 22, the operation opposite to the above may be performed.

Returning to FIG. 5, the rotor 17 is provided above the main body 12.
A hole 12c is formed facing the hole 12a, and the hole 1c is provided at a predetermined position on the outer peripheral surface of the peripheral wall 17a of the rotor 17 so as to be opposed to the hole 12c.
7c is provided. An air cylinder 30 is disposed above the body 12 so as to face the hole 12c.
a is loosely fitted in the hole 12c, and a stopper 31 is fixed to the tip thereof. The stopper 31 is fitted into the hole 17c of the rotor 17 when the rod 30a extends and is fitted into the rotor 1
When the rotation of 7 is stopped and shortened, it enters the hole 12c, and the rotation of the rotor 17 is enabled. The rod 30a of the cylinder 30 is pulled in by a built-in spring when air is not supplied, and the stopper 31 is also pulled in the hole 12c.

A valve 33 is provided below the rotor 17 of the main body 12, and the valve 33 is provided with a cam 34.
It is opened and closed by. Further, the main body 12 has an air cylinder 30.
An actuator 35 is interposed between the valve 33 and the valve 33,
The actuator 35 is the speed controller 3
6, a valve 37 is integrally provided, the speed controller 36 is connected to the valve 33, and the valve 37 is connected to the air cylinder 30. The cam 34 is rotated by the drive mechanism 15 in synchronism with the rotor 17, as will be described later, and the recess 33 a opens the valve 33.

When the valve 33 is opened, it supplies air to the actuator 35 via the speed controller 36. The actuator 35 operates when the air pressure is accumulated, opens the valve 37, supplies the air to the air cylinder 30, and extends the piston 30a. Actuator 3
The operation start time of 5, that is, the pressure accumulation time of air required to drive the cylinder 30 is adjusted by the speed controller 36. The air motor 70 of the drive mechanism 15 (see FIG.
At the same time when the forward rotation switch of 4) is turned on, the valve 33
Air flows from the actuator 35 into the actuator 35. At this time, the cylinder 30 operates and the stopper 31 causes the rotor 17 to move.
Control valve 37 so that it does not stop at
Thereby delaying the time of air flowing into the actuator 35, during which the cam 34 rotates and the convex portion 33b causes the valve 3 to move.
3 is closed. In this way, the automatic stop mechanism of the rotor 17 is configured.

Further, as shown in FIG. 6, a hole 12d is formed in the upper portion of the main body 12 so as to face the rotor 17, while the hole 12 is provided at a predetermined position on the peripheral wall 17a of the rotor 17.
A notch 17d is provided so as to face d. Body 12
The drum positioning stopper 38 faces the hole 12d, and the spring 39 applies a spring force to the notch 17d of the rotor 17 by the spring 39 so that the notch 17d can engage with the notch 17d. The stopper 38 rotates the rotor 17 in the direction of arrow D in the reverse direction,
The rotor 7 is stopped by engaging the notch 17d at a position where 7b coincides with the opening of the hole 12a of the main body 11 and can be opened / closed, and the electric wire is taken into the rotor 17 and the electric wire from the rotor 17 is stopped at the stopped position. It is possible to take out. The stopper 38 is pressed by the rotor 17 when the rotor 17 rotates forward in the direction of arrow C, and is pressed into the hole 12d while compressing the spring 39. This allows the rotor 17 to rotate in the forward rotation direction.

9 to 11, guide rails 40 and 4 are provided between the end plate 12B of the main body 12 and the partition plate 12D.
0 are bridged horizontally and parallel to each other (Fig. 1
1), the twister frame 41 is slidably supported by these guide rails 40, 40, and is horizontally movable between the end plate 12B and the partition plate 12D. The twister frame 41 has a large-diameter hole 41a on one side, a large-diameter hole 41b and a shaft hole 41c arranged concentrically along the hole 41a in the approximate center, and a hole 41d (FIG. 11) on the lower side of the other side. Are bored horizontally, and a shaft hole 41e (FIG. 9) is bored vertically in the central portion so as to be orthogonal to the hole 41b.

The air cylinder 42 is housed in the hole 41a, the cylinder side is fixed to the twister frame 41, and the tip of the rod is fixed to the end plate 12B. Twister frame 4
1 moves to the end plate 12B side when the cylinder 42 shortens (FIG. 9), and moves to the partition plate 12D side when it extends (FIG. 1).
0). A bevel gear 44 is housed in the hole 41b of the twister frame 41, is rotatably supported by the shaft hole 41c, and is spline fitted to one end of a spline shaft 45. The other end of the spline shaft 45 is rotatably supported by the end plate 12A and the partition plate 12D of the main body 12 as shown in FIG.

A shaft 46 (FIG. 9) is rotatably supported in a shaft hole 41e of the twister frame 41, and a bevel gear 47 meshing with a bevel gear 44 is fixed in the center. The upper and lower ends of the shaft 46 are connected to the twister frame 41.
A twister 50 is fixed to the upper end and a stop lever 51 is fixed to the lower end. As shown in FIG. 12, the twister 50 is provided with a claw 50a at its front end. When the twister 50 rotates in the direction of arrow D, the winding end portion (terminal end) 4b of the bind wire 4 is hooked at the tip and taken in at the root portion. It is designed to be locked. In addition, a hole 50b is formed in the rear end in the horizontal direction, and a hole 50c that is perpendicular to the closed end face of the hole 50b and forms a semicircular groove in the approximate center of the closed end face. . This hole 5
A winding start portion (starting end) 4a of the bind wire 4 is inserted into 0c.

A tip 52a of a pin 52 is slidably fitted into a hole 50b of the twister 50 via a nut 53, and a spring 54 is provided between the tip 52a and the nut 53.
And a knob 55 is fixed to the base end of the pin 52. The tip 52 of the pin 52 is
a is pressed against the starting end 4a of the bind wire 4 fitted into the hole 50c to lock the bind wire 4. When the pin 52 is pulled in the arrow direction by the knob 55 against the spring force of the spring 54, the tip 52a is separated from the starting end 4a of the bind wire 4 to release the lock.

As shown in FIG. 13, the stop lever 51 is provided with a V-shaped notch 51a at one end and a slit 51b at the other end, and a triangular top 57 is housed in the slit 51b and is rotatable. It is pivotally supported. A spring 60 is stretched between one end 57a of the top 57 and the pins 58 and 59 planted in the stopper lever 51, and the top 57 is always drawn into the slit as shown by the solid line. A stopper pin 6 is provided on the bottom of the twister frame 41.
When the shaft 46 is reversely rotated in the direction of arrow D, the other end 57b of the top 57 abuts against the stopper pin 61 and is locked, and the shaft 46, that is, the twister 50 is prevented from reversely rotating. It When the shaft 46 rotates forward in the direction of the arrow C, the spring 60 extends when the other end 57b of the top 57 hits the stopper pin 61, and the top 57 rotates as shown by the chain double-dashed line to escape the stopper pin 61. Therefore, the normal rotation of the shaft 46 is possible.

Further, stopper pins 62 are also planted on the lower surface of the end plate 12B of the main body 12 as shown in FIG. 9, and when the Swissta frame 41 moves to the end plate 12B side as indicated by the two-dot chain line. The notch 51a of the stop lever 51 engages with the stopper pin 62, and the shaft 46 is prevented from both forward rotation and reverse rotation. Returning to FIG. 11, the shifter shaft 64
Is slidably inserted into the hole 41d of the twister frame 41, and stoppers 64a and 64b are fixed to one end and substantially the center of the twister frame 41 with the twister frame 41 sandwiched therebetween. The shaft holes of the twelve partition plates 12D are slidably fitted and protruded between the partition plate 12D and the end plate 12A, and the lower end of the shift fork 65 is fixed to the tip. When the twister frame 41 moves to the end plate 12B side as shown in FIG. 9, the shifter shaft 64 is pushed to the left by the stopper 64a by the twister frame 41, and to the partition plate 12D side as shown in FIG. The stopper 64b is pushed and slides to the right to move the shift fork 65 to the left or right.

FIG. 14 shows the drive mechanism 15, the air motor 70 is housed in the main body 12 (FIG. 4), and the gear 71 is fixed to the shaft. Spline shaft 8
5, a gear 72 is supported at its both ends by an end plate 12A of the main body 12 and a partition plate 12D (FIG. 9), and has a gear 72 meshing with a gear 71 at one end.
Is fixed. The shift gear 73 is spline-fitted to the spline shaft 85, is slidable in the axial direction, and rotatable integrally with the spline shaft 85, and has an annular groove 73b formed on the outer peripheral surface of the shaft portion 73a.
The upper end of the shift fork 65 is engaged with the gear (FIG. 9).

The gear 74 is fixed to the other end of the spline shaft 45, and the gear 74 corresponds to the idle gear 7.
It meshes with 5. Shaft 8 of this idle gear 75
Both ends of 6 are supported by an end plate 12A and a partition plate 12D, respectively. The shaft 87 is rotatably supported by the end plate 12A and the partition plate 12D, gears 76 and 77 are fixed to one end, and a gear 79 is supported on the other end via a one-way clutch 78. The shaft 88 includes the end plate 12B and the partition plate 1
A gear 80 that is rotatably supported by 2D is fixed to one end, and a gear 80 that meshes with a gear 79 is fixed, and the cam 34 is fixed to the other end. The gear 77 meshes with the gear 18 fixed to the rotor 17.

The shift gear 73 is moved in the axial direction by the shift fork 65, meshes with the gear 76 when the twister frame 41 moves to the end plate 12B side as shown in FIG. 9, and the twister frame 41 is partitioned as shown in FIG. Board 12
When it moves to the D side, it meshes with the idle gear 75. Also,
The one-way clutch 78 becomes free when the shaft 87 rotates in the reverse direction, that is, when the rotor 17 rotates in the reverse direction, and the cam 34
It is designed not to transmit rotation to.

Air passages 11a to 11 for driving the air motor 70, the air cylinder 30, and the actuator 35 are provided in the grip portion 11 (FIG. 4) to which the main body 12 is fixed.
e are provided, and these air passages 11a to 11e are provided.
When the grip 11 is attached to the grip 90 of the manipulator, is connected to an air passage provided in the grip 90 and connected to an air source (both not shown).

The operation will be described below. As shown in FIG. 4, in the tool 10, the grip 11 is a grip 90 of the manipulator.
And the rotor 17 has an opening at the hole 12 of the main body 12.
It coincides with the opening of a and stops at the initial position. The operator opens the peripheral wall 17b by rotating the peripheral wall 17b as shown by a solid line to allow the electric wire 1 and the PD wire 4 to be taken into the center of the rotor 17. Further, the cylinder 42 (FIG. 11) is shortened, and the twister frame 41 has the end plate 12B as shown in FIG.
The cutout 51a of the stop lever 51 is engaged with the stopper pin 62. As a result, the twister 50 is prevented from rotating and is held in a stopped state.

The operator removes the drum 25 from the drum shaft 22 of the bracket 21 fixed to the rotor 17 as shown in FIG. 8, winds the bind wire 4 around the groove 25c a predetermined number of times, for example, four and a half times, and then again the drum shaft. Attach it to 22. The end 4b of the bind wire 4 is wound around the outer peripheral surface on the side of the rear end 25d apart from the groove 25c. Next, the operator inserts the start end 4a of the bind wire 4 into the pull hole 50c by pulling the knob 55 of the twister 50 (FIG. 12) and then releases the knob 55 to lock the start end 4a to the twister 50.

In this state, the rotor 17 and the drum 2
5, the twister 50 and the bind wire 4 are in the positional relationship as shown in FIGS. 3 and 15, and the twister frame 41 is shown in FIG.
As described above, the shift gear 73 is moved to the end plate 12B side of the main body 12, and meshes with the gear 18 of the rotor 17. Further, as shown in FIG. 5, in the cam 34, the recess 34 a opens the air valve 33. PD wire 2 for the core wire 1a of the electric wire 1
The core wire 2a is already connected via the connector 3 as shown in FIG. The electric wire 1 and the PD wire 2 are provided on the both sides of the drum 25 with the rotor 17 and the notch 12b of the end plate 12B.
Supported by and.

Now, the operator operates the manipulator to take in the portion of the electric wire 1 and the PD wire 2 which is separated from the connector 3 into the rotor 17 through the opening of the rotor 17, and then the forward rotation switch of the air motor 70 ( (Not shown) is turned on. When the forward rotation switch is turned on,
Air flows into the actuator 35 through the valve 33 of FIG. At this time, the speed controller 36 delays the time of the air flowing into the actuator 35 and delays the operation of the cylinder 30. Therefore, the stopper 31 is pulled into the hole 12c by the spring incorporated in the cylinder 30, and the rotor 17 is rotatable.

When the forward rotation switch of the air motor is turned on, the air motor 70 rotates in the forward direction and the rotor 17 rotates in the direction of arrow C in FIG.
The peripheral wall 17b is pressed against the inner surface of the hole 12a of the main body 12 to be closed. Then, the rotor 17 rotates with the electric wire 1 and the PD wire 2 taken in. The cam 34 rotates together with the rotor 17 to close the valve 33 by the convex portion 34b.
The cam 34 is decelerated by the gears 79 and 80, and the rotor 17
The valve 33 is closed by the convex portion 34a during four and a half rotations.

The drum 25 has a rotor 17 as shown in FIG.
At the same time, the binding wire 4 is wound around the electric wire 1 and the PD wire 2 while revolving around the electric wire 1 and the PD wire 2. At this time, the drum 25 rotates while receiving a braking force by the thrust washers 24, 24 in FIG. 8 and winds while binding the bind wire 4 with tension. When the rotor 17, that is, the drum 25 rotates four and a half rotations, the cam 34
The recess 34a (FIG. 5) opens the valve 33 and supplies air to the actuator 35. Actuator 35
When the air is supplied, the cylinder 30 is extended and the stopper 31 is pushed out to fit into the hole 17c (FIG. 5) of the rotor 17. As a result, the rotor 17 stops at the position shown in FIG.

After the rotor 17 has stopped, when the operator turns off the air motor forward rotation switch and turns on the reverse rotation switch (not shown), the air supply to the valve 33 is stopped and the opened valve is opened. Air accumulated in the actuator 35 is discharged to the atmosphere via 33, and the air in the cylinder 30 is discharged accordingly. As a result, the cylinder 30 is shortened by the spring, the stopper 31 is drawn into the hole 12c of the main body 12 and disengaged from the hole 17c of the rotor 17, and the rotor 17 is made rotatable. When the reverse rotation switch is turned on, the air motor 70 reversely rotates, and the rotor 17 reversely rotates about 1/2 turn in the direction of arrow D in FIG. 17 to return to the initial position. As shown in FIG. The notch 17d of the rotor 17 is engaged to stop the rotor 17. At this time, as shown in FIG. 14, the rotation of the shaft 87 of the rotor 17 is not transmitted to the gear 80 by the action of the one-way clutch 78, and the cam 34 is
The stopped state is maintained.

When the drum 25 stops at the position of FIG. 17 and then rotates in the reverse direction, the drum 25 returns from the end 4b of the bind wire 4 to the initial position of FIG. 18, and the end 4b of the bind wire 4 has the stop position. Left as a free end. This completes the work of winding the bind wire 4 around the electric wire 1 and the PD wire 2, and then starts the work of twisting the bind wire 4. When the operator turns on the extension switch of the cylinder 42,
The cylinder 42 (FIG. 11) extends to move the twister frame 41 rightward in the drawing to the partition plate 11D. As a result, in the twister 50 disposed on the twister frame 41, the claw 50a has the end (free end) 4b of the bind wire 4.
To the position where it can be locked. As the twister frame 41 moves, the shifter shaft 64 moves,
As described above, the fork 65 disengages the shift gear 73 from the gear 18 of the rotor 17 and meshes with the idle gear 75. When the twister frame 41 moves to the partition plate 12D side, the notch 51a of the stop lever 51 causes the stopper pin 62 to move.
(Figs. 9 and 13), the shaft 46, that is, the twister 50 can rotate in the forward direction (arrow C).

Next, when the air motor 70 rotates forward, the gear 74 rotates via the idle gear 75 shown in FIG. 14, and the spline shaft 45 rotates to rotate the bevel gear 44.
Rotates. The rotation of the bevel gear 44 causes the bevel gear 47 to rotate, and the twister 50 rotates in the forward direction of arrow C (FIG. 19). The twister 50 moves the pawl 50a along with the forward rotation.
Then, the end (free end) 4b of the bind wire 4 is hooked, and the root of the bind wire 4 is captured and locked (FIG. 12).

The starting end 4a of the bind wire 4 is a twister 50.
Is locked to the other end of the twister 50,
With the rotation, the starting ends 4a and 4b intersect and are twisted and tightened. Since the bind wire 4 is an aluminum wire, the bind wire 4 is twisted off several times (3 to 4 times) (FIG. 20), and separates from the twister 50. In this way, a series of binding work for winding the binding wire 4 around the electric wire 1 and the PD wire 2 while tightening them, and crossing both ends and twisting and fixing is completed.

Reverse rotation of the stop lever 51 is prevented by the top 57 and the stopper pin 61. Therefore, twisting back when the air motor 70 is stopped after the bind wire 4 is twisted is prevented. This is effective when the wire which is not twisted like the above-mentioned aluminum wire is used as the bind wire 4. The stop lever 51 is not always necessary.

The operator removes the remainder of the bind wire 4 held by the twister 50 after the winding work of the bind wire 4 is completed. Further, the drum 25 is removed, the bind wire is wound around and then mounted again, and the start end of the drum 25 is locked to the twister 50 before the next winding work.

[0041]

As described above, according to the present invention, the main body fixed to the grip portion attached to the working machine is rotatably supported, and the side portion is axially opened so that a plurality of electric wires are provided inside. A rotor that can be taken in and taken out, a drive unit that is disposed in the main body and that rotates the rotor, and a spiral groove around which a bind wire is wound are formed on an outer peripheral surface, and one end of the rotor is radially outward from the rotor. A binding that is rotatably attached to the main body and is rotated around the electric wire along with the rotation of the rotor and is wound around the spiral groove and the start end is locked to the main body. A drum for winding a wire around the electric wire while tightening the wire, and a stop that is interposed between the main body and the rotor and stops when the rotor rotates a predetermined time from the start of winding the bind wire. Since it is possible to wind the bind wire around the electric wire while tightening the bind wire, it is possible to automate the work of winding the bind wire, and it is possible to improve the work efficiency particularly in the distribution work of the overhead wire. There is an effect that it can be achieved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which an electric wire and a PD wire are connected by a connector.

FIG. 2 is a diagram showing a state in which a bind wire is wound around the electric wire and the PD wire in FIG. 1 and the PD wire is supported on the electric wire.

FIG. 3 is an end view showing an embodiment of an electric wire binding tool according to the present invention.

FIG. 4 is a side view of FIG.

FIG. 5 is an enlarged view of a notch of a main part near the rotor of FIG.

FIG. 6 is an enlarged view of a notch of a main part near the rotor of FIG.

FIG. 7 is a partially cutaway front view of the drum of FIG.

8 is a sectional view taken along the arrow line VIII-VIII in FIG.

9 is a cross-sectional view showing a state in which a binding wire is wound around an electric wire and a PD wire by the tool shown in FIG.

FIG. 10 is an explanatory diagram of a case where the work of twisting the bind wire wound around the electric wire and the PD wire in FIG. 9 is performed.

11 is a partial cross-sectional view showing a moving mechanism of the twister frame of FIG.

12 is a plan view of the twister of FIG.

13 is a sectional view of the stop lever of FIG.

14 is a diagram showing an outline of a drive mechanism of the tool shown in FIG.

15 is a diagram showing the initial position of the drum when the bind wire is wound by the tool of FIG.

16 is a diagram showing the start of winding the bind wire in FIG.

FIG. 17 is a diagram showing a winding end state of the bind wire in FIG. 16;

FIG. 18 is a diagram showing a state in which the drum is returned to the initial position after winding the bind wire in FIG. 17;

19 is an explanatory diagram of a case where a twisting operation is performed after winding the bind wire in FIG.

20 is a diagram showing a state in which the PD wire is fixed to the electric wire by twisting the bind wire in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 electric wire (high-voltage electric wire) 2 PD wire 3 connector 4 bind wire 10 electric wire binding tool 11 gripping portion 12 main body 13 bind wire winding mechanism 14 bind wire twisting mechanism 15 drive mechanism 17 rotor 25 drum 30, 42 cylinder 33, 37 valve 34 Cam 35 Actuator 36 Speed Controller 41 Twister Frame 50 Twister 51 Stop Lever 64 Shifter Shaft 65 Shifter 70 Air Motor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsushi Uchiyama 2-4-1, Nishitsutsujigaoka, Chofu-shi, Tokyo Inside TEPCO Technical Research Institute

Claims (1)

[Claims] 1. A rotor, which is rotatably supported by a main body fixed to a gripping part attached to a work machine, and whose side portion is axially opened so that a plurality of electric wires can be taken in and taken out, and the main body. Drive means arranged to rotate the rotor, and a spiral groove around which a binding wire is wound are formed on an outer peripheral surface, and an appropriate braking force is applied to one end of the rotor by projecting radially outward from the rotor. A drum that is rotatably mounted, rotates around the electric wire with the rotation of the rotor, winds around the spiral groove, and winds while binding the bind wire whose starting end is locked to the main body to the electric wire. An electric wire comprising: a stopping unit interposed between the main body and the rotor, for stopping the rotor when the rotor makes a predetermined rotation from the winding start of the bind wire. Bind tool.