JPH0227643B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to an optical fiber cable winding machine for winding an optical fiber cable around an overhead line in a spiral manner around an overhead line such as an overhead power transmission line or an overhead ground wire. It is.

(Prior Art) In recent years, an overhead line-attached optical fiber cable system has been proposed in which an optical fiber cable is wound around the outer periphery of an overhead line.

2. Description of the Related Art There is a so-called lashing machine as an optical fiber cable winding machine for winding an optical fiber cable around an overhead line, especially an installed overhead line.

A conventional latching machine consists of a cylindrical body through which electric wires pass, a rotating frame rotatably supported by the cylindrical body around the cylindrical body, and a rotating frame protruding from the rotating frame in a direction perpendicular to its axis. It consists of a drum mounting shaft and an optical fiber cable supply drum attached to the drum mounting shaft. After pulling out the optical fiber cable from the supply bobbin and fixing its end to the overhead wire, the entire latching machine is connected to the overhead wire. The optical fiber cable is moved in the longitudinal direction to apply tension to the optical fiber cable, and this tension causes the rotary frame to rotate around the overhead wire, thereby winding the optical fiber cable around the overhead wire in a spiral manner.

(Problem to be solved by the invention) However, since the conventional latching machine applies tension to the optical fiber cable and uses this tension to wrap the optical fiber cable itself around the overhead wire, there is a risk of damaging the optical fiber cable. is high. Furthermore, when winding an optical fiber cable around an overhead line using a conventional latching machine, it is necessary to balance the rotation moments between the supply bobbin supporting side of the rotating frame and the opposite side. For this reason, in the past, a balance weight was attached to the opposite side of the rotating frame from the supply bobbin support side, but in this way of balancing the rotational moment, the weight is reduced by letting out the optical fiber cable from the supply bobbin. The problem was that the rotational moment became unbalanced as the rotation was increased. If the rotational moment is not balanced, the optical fiber cable winding machine will not rotate smoothly around the overhead wire, the tension at which the optical fiber cable is wound will fluctuate, and extra tension will be applied to the optical fiber cable during winding. , there is a risk of damage to the optical fiber cable.

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical fiber cable winding machine for an overhead line that can balance the rotational moment even if the weight of the supply bobbin is reduced.

Another object of the present invention is to provide a machine for winding an optical fiber cable around an overhead line, which can easily return a balance weight to a supply bobbin.

(Means of the present invention for solving problems) The first invention of the present application is such that an optical fiber cable is suspended and supported by an overhead wire to be wound, and is self-propelled along the longitudinal direction of the overhead wire by the driving force of a drive source. a self-propelled machine that is supported at the rear of the self-propelled machine, receives a rotational force from a drive source of the self-propelled machine, rotates around the outer circumference of the overhead line, and unwinds an optical fiber cable to extend the outer circumference of the overhead line. a rotating frame rotatably supported by the self-propelled machine so as to rotate around the overhead wire. a rotational force transmission mechanism that transmits rotational force from a drive source of the self-propelled machine so that the rotational frame rotates around the overhead wire; an optical fiber cable supply bobbin that feeds out the optical fiber cable to be wound around the overhead wire while revolving around the outer periphery of the overhead wire; a balance weight supported slidably in a direction; a balance weight drive screw shaft that is rotatably supported by the rotating frame and threaded through the balance weight; A fixed ratchet wheel is supported by the self-propelled machine so as to be located on the revolution circumference of the ratchet wheel as the rotating frame rotates, and the ratchet meshes with the ratchet wheel as the ratchet wheel revolves. The apparatus is characterized in that it includes a ratchet drive claw that rotates the etching wheel in a direction in which the balance weight approaches the overhead wire.

A second invention of the present application provides a self-propelled machine that is suspended and supported by an overhead line around which an optical fiber cable is to be wound, and that is self-propelled along the longitudinal direction of the overhead line by the driving force of a drive source, and a rear part of the self-propelled machine. an optical fiber cable winding machine that is supported by a drive source of the self-propelled machine and rotates around the outer periphery of the overhead wire by feeding out the optical fiber cable and winding it spirally around the outer periphery of the overhead wire. The optical fiber cable winding machine main body includes a rotary frame rotatably supported by the self-propelled machine so as to rotate around the overhead wire, and the rotary frame rotates around the overhead wire. a rotational force transmission mechanism that transmits rotational force from a drive source of the self-propelled machine so as to rotate the mobile machine; An optical fiber cable supply bobbin for feeding out an optical fiber cable to be wound around the overhead wire, and an optical fiber cable supply bobbin supported slidably in the radial direction of the overhead wire on a side of the rotating frame opposite to the support side of the optical fiber cable supply bobbin. a balance weight, a balance weight drive screw shaft passing through the balance weight while being rotatably supported by the rotating frame, and a clutch interposed between the balance weight and the balance weight drive screw shaft; , a ratchet wheel fixed to the screw shaft; and a ratchet wheel supported by the self-propelled machine so as to be located on the revolution circumference of the ratchet wheel as the rotating frame rotates; The present invention is characterized by comprising a ratchet wheel drive pawl that engages with the ratchet wheel to rotate the ratchet wheel in a direction in which the balance weight approaches its rotation center.

(Function of the invention) In the optical fiber cable winding machine for overhead lines of the first invention, when the self-propelled machine runs along the overhead line due to the driving force of the onboard drive source, the driving force of the drive source is also transmitted to the main body of the optical fiber cable winding machine, and the rotating frame is driven to rotate around the overhead wire. The rotation of the rotating frame causes the optical fiber cable supply bobbin to revolve around the overhead wire, and the optical fiber cable fed out from the bobbin is spirally wound around the outer periphery of the overhead wire as the self-propelled machine travels. As the optical fiber cable is fed out, the weight of the supply bobbin becomes lighter, but the balance weight gradually approaches the overhead line side, thereby preventing the rotational moment from becoming unbalanced.

In the optical fiber cable winding machine for overhead lines according to the second invention, when the balance weight is moved to the terminal position and returned to the initial position, the balance weight drive screw shaft is disconnected by disengaging the clutch. The bonds are broken, and the balance weight can be returned to its initial position all at once.

(Example) Examples of the present invention are shown below in Figures 1 to 30A,
This will be explained in detail with reference to B. The optical fiber cable wrapping machine for overhead lines of this embodiment includes a self-propelled machine 2 that is suspended from an overhead line 1 such as an overhead ground wire and runs on its own;
An optical fiber cable winding machine that is supported by the self-propelled machine 2, receives rotational force from the self-propelled machine, and rotates around the outer circumference of the overhead line 1 while feeding out the optical fiber cable and winding it spirally around the outer circumference of the overhead line 1. It consists of a main body 3.

The self-propelled machine 2 has a cylindrical body 4 that is fitted around the outer circumference of the overhead line 1 and runs along the overhead line 1. The cylindrical body 4 is provided with a slit 5 along the longitudinal direction at one location in the circumferential direction to facilitate fitting to the overhead wire 1. A traveling frame 6 is suspended and supported on the tip side of the cylindrical body 4. A pair of drive wheels 7 made of a V-vehicle that rotates while riding on the overhead wire 1 are rotatably supported on the upper part of the traveling frame 6.
On the other hand, a drive source 8 consisting of a gasoline engine is mounted on the lower part of the traveling frame 6. Drive source 8
The rotational output is transmitted to both drive wheels 7 via the first rotational force transmission mechanism 9. The rotational force transmission mechanism 9 includes a pulley 11 attached to the output shaft of the drive source 8, a timing belt 12 that transmits the rotational force of the pulley 11, and a pulley 13 to which the rotational force is transmitted from the timing belt 12.
A worm reducer 14 that decelerates the rotational force of the pulley 13, a rising rotation shaft 17 connected to the output shaft 15 of the reduction gear 14 via a coupling ring 16, and a worm speed reducer 14 fixed to the tip of the rising rotation shaft 17. a bevel gear 18 that meshes with the bevel gear 18; a bevel gear 19 that meshes with the bevel gear 18; and a rotating shaft 20 that supports the bevel gear 19.
and a drive gear 21 fixed to the rotating shaft 20.
and a pair of driven gears 22 that mesh with the drive gear 21 to rotationally drive both drive wheels 7. Each rotating shaft 17, 20 is rotatably supported on the traveling frame 6 by bearings 23, 24, and the driven gear 22
is concentrically and integrally connected to the drive wheel 7. A presser roller 25 is provided below between the drive wheels 7 and rotatably supported by a lift shaft 27 via a bracket 26 in order to prevent the drive wheels 7 from coming off the overhead wire 1. A piece 28 is slidably fitted to the lower part of the lifting shaft 27. A coil spring 29 is fitted around the outer periphery of the lifting shaft 27, and its upper end is brought into contact with the lower surface of the bracket 26, and its lower end is brought into contact with the piece 28, so that the lifting shaft 27 is biased in the upward direction. There is. A stopper nut 30 is located below the bridge 28 and is screwed onto the outer periphery of the lifting shaft 27, so that the lifting range of the lifting shaft 27 by the spring 29 is regulated. An intermediate portion of an operating lever 31 is pivotally supported on the piece 28 by a pin 32. Operation lever 3
1 is pivotally supported by a pin 34 to a bracket 33 fixed to the traveling frame 6. A cam follower 36 is rotatably supported at a position near the tip of the operating lever 31 via a pin 35. Corresponding to the cam follower 36, an eccentric cam 37 is rotatably supported on the traveling frame 6 by a pin 38. A holding rail 39 is provided on the outer periphery of the eccentric cam 37 in a circular arc shape. The cam follower 35 is configured to enter into the holding rail 39 through an opening 40 of the holding rail 39 and to be held therein. cam 37
A lever 41 is attached to rotate the lever. The bracket 26 is regulated by a guider 42 so that the presser roller 25 moves in the vertical direction. The optical fiber cable winding machine main body 3 is
It has a rotating frame 43 rotatably fitted to the rear outer periphery of the cylindrical body 4. This rotating frame 43
includes end plates 44 and 45 arranged at intervals in the longitudinal direction of the overhead line 1. These end plates 4
4 and 45 have holes 46 and 47, respectively, and are fitted onto the outer periphery of the cylindrical body 4 using these holes 46 and 47. Each end plate 44, 45 has slits 44A, 45A reaching holes 46, 47.
are provided respectively, and the overhead wire 1 is connected to the hole 46,
47 can be passed through. Further, the rotating frame 43 includes frame base bodies 48 and 49 that connect end plates 44 and 45. End plates 44, 45
A plurality of rollers 50 are provided around the holes 46 and 47,
51 is rotatably supported by bolts 52, 53 and nuts 54, 55. These rollers 50,
51 rotates in contact with the outer periphery of the cylindrical body 4, so that the rotating frame 43 rotates smoothly. A groove 56 into which the roller 50 is fitted is formed on the outer periphery of the cylindrical body 4, whereby the rotating frame 4
3 is prevented from shifting in the longitudinal direction of the cylindrical body 4.

A second rotational force transmission mechanism 56 is provided to transmit rotational force from the self-propelled machine 2 to the rotating frame 43. This rotational force transmission mechanism 56 includes a bevel gear 57 fixed to the middle of the rising rotation shaft 17, a bevel gear 58 meshing with the bevel gear 57, and a rotation shaft 59 to which the bevel gear 58 is fixed at one end. , a gear 60 fixed to the other end of this rotating shaft 59
and a gear 61 that meshes with the gear 60. The rotating shaft 59 is supported by the traveling frame 6 via a bearing 62. The gear 61 has a hole 61A in the center.
It has a ring shape and is rotatably fitted to the outer periphery of the cylindrical body 4, and is supported by the rotating frame 43 using each bolt 52 that supports each roller 50. Therefore, when the gear 61 rotates, the rotating frame 43 also rotates around the cylindrical body 4 in unison.

The gear 61 is provided with a slit 63 that reaches the hole 61A, so that the overhead wire 1 can be easily inserted into the cylindrical body 4 at the gear 61 as well. A gear piece 64 is fitted into the slit 63 so that the gear is aligned with the teeth of the gear 61. In order to detachably support this gear piece 64 on the gear 61, a slit 63 is provided in the gear 61.
Connecting holes 65 and 66 are provided on both sides of the gear piece 6.
4 is provided with connection holes 67 and 68. Further, at the position of the slit 63, first and second connecting pieces 69 and 70 are applied to both sides of the gear 51. The first connecting piece 69 has each connecting piece 65,
Connecting pins 71, 7 corresponding to 66, 67, 68
2, 73, and 74 are provided protrudingly. Among these, the connecting pin 72 is formed to be about twice as long as the other pins.
The second connecting piece 70 is provided with connecting holes 75, 76, 77, and 78 through which the connecting pins 71 to 74 pass, and a screw hole 79 is provided in the center. The connecting pin 71 is passed through the connecting holes 65, 75,
The connecting pin 73 is passed through the connecting holes 67, 77, the connecting pin 74 is passed through the connecting holes 68, 78, and the connecting pin 72 is passed through the connecting holes 66, 76. In order to prevent these connecting pins 71 to 74 from coming off, S-shaped clamp pieces 8 are provided in the locking grooves 73A and 74A at the tips of the connecting pins 73 and 74 that protrude from the connecting piece 70.
0 hook portions 80A and 80B are engaged.
The bolt 81 is inserted into the center hole 80C of the clamp piece 80.
is passed through, and this bolt 81 is screwed into the screw hole 79 of the connecting piece 70 and is rotatably supported by the connecting piece 70. Hook portions 80A, 8 of clamp piece 80
In order to prevent 0B from coming off the connecting pins 73 and 74, the clamp piece 80 has a loop portion fitted onto a bolt 81 and is biased by a torsion spring 82.
That is, one end 82A of the torsion spring 82 is connected to the connecting piece 70.
The other end is hooked to the locking part 80 of the clamp piece 80.
It is locked on D.

A bobbin shaft 8 is attached to the bearing portion 83 of the frame base 48.
4 is rotatably supported through the shaft. An optical fiber cable supply bobbin 85 is integrally fitted into a bobbin shaft 84 projecting outward from the frame base 48 so that it rotates as the bobbin shaft 84 rotates. A brake drum 86 is fixed to a bobbin shaft 84 protruding inwardly from the frame base 48, and a brake belt 87 is placed around the outer periphery of the brake drum 86. In order to support the brake belt 87, a bracket 88 is provided protruding from the frame base 48, and this bracket 88
A shaft 89 is supported in a cantilevered manner. One end of the brake belt 87 is supported by the shaft 89 via an attachment loop 90. The other end of the brake belt 87 is connected to the screw shaft 9 via a spring 91.
2, this threaded shaft 92 is passed across the shaft 89, and a nut 93 is screwed into the part protruding from the shaft 89, so that the brake can be adjusted by adjusting the nut 93. . By applying the brake in this manner, back tension is applied to the optical fiber cable being fed out from the supply bobbin 85.

A guide tool 9 is used to guide the optical fiber cable fed out from the supply bobbin 85 to the overhead line 1.
4 is supported by the rotating frame 43 via a bracket 95. Further, a V-groove roller 96 is supported at the end of the cylindrical body 4 by a bracket 97 for controlling the overhead wire 1 relatively emerging from the cylindrical body 4 to be located within the cylindrical body 4.

A pair of weight fiber cables 98 and 99 are cantilevered and protruded from the frame base 49 in a direction perpendicular to the frame base 49, that is, perpendicular to the overhead wire 1. These weight fiber cables 9
8 and 99, a balance weight 100 is supported so as to be able to approach and move away from the cylindrical body 4. Fiber cable grooves 101A and 101B are provided at both ends of the balance weight 100 in the longitudinal direction, and weight fiber cables 98 and 99 are slidably fitted therein. A circular recess 1 is formed on one side of the center of the balance weight 100.
02 is provided, and a rectangular elongated hole 103 is provided to pass through the circular recess 102. Circular recess 1
A clutch operating disc 104 is rotatably fitted within the clutch 02. This clutch operating disc 104 has a shaft through hole 105 in the center.
On both sides of 05, there are long holes 106A, which are parallel to each other.
106B are spaced apart in the longitudinal direction. In order to prevent the clutch operating disc 104 from coming off, a retaining ring 107 surrounds the outer periphery of the disc 104 and is fixed to the balance weight 100. A base portion of a clutch lever 108 for rotating the clutch operating disc 104 is fixed to the clutch operating disc 104. A square clutch nut 109 divided into two halves is fitted into the rectangular elongated hole 103 so as to be slidable in the longitudinal direction thereof. This clutch nut 109
is divided into two by a dividing surface 111 with the screw hole 110 as the center. One side of the clutch nut 109 has pins 1 on both sides with the split side 111 in between.
12A and 112B are provided protrudingly. These pins 112A, 112B are fitted into elongated holes 106A, 106B of the clutch operating disc 104. The clutch lever 108 is provided with a lock pin 113 for fixing the clutch nut 109 in the closed and open states, and the balance weight 100 has a pair of lock holes 114 into which the pin 113 is fitted.
is open. These components 102-1
Clutch 1 for transmitting or not transmitting the moving force to the balance weight 100 at 14
It consists of 15.

A weight drive screw shaft 116 for driving the balance weight 100 is screwed into a screw hole 110 of the clutch nut 109 . One end of this screw shaft 116 is connected to a weight fiber cable 98,
It is rotatably supported by a bearing 118 supported by an end plate 117 of 99. The other end of the screw shaft 116 is rotatably supported by a bearing 119 of a frame base 49, passes through the frame base 49, is brought close to the cylindrical body 4, and a star-shaped ratchet wheel 120 is fixed to the end thereof. ing. The cylindrical body 4 corresponds to the position where this ratchet wheel 120 revolves around the cylindrical body 4 as the rotating frame 43 rotates.
In a part of the circumferential direction, there is a ratchet wheel 12.
A ratchet drive pawl 121 made of a pin is provided in a protruding manner so that the ratchet can be engaged only once per revolution of the ratchet.

In such an optical fiber cable wrapping machine for overhead wires, when the drive source 8 consisting of a gasoline engine is driven, the rotational force is transmitted to the drive wheels 7 via the first rotational force transmission mechanism 9, and the machine is self-propelled. The aircraft 2 starts traveling in the longitudinal direction while being supported by the overhead wire 1. In this case, since the self-propelled aircraft 2 is suspended from the overhead wire 1 and its center of gravity is below the overhead wire 1,
You can run in a stable position. Further, the driving force of the driving source 8 is transmitted to the optical fiber cable winding machine main body 3 via the second rotational force transmission mechanism 56, and the rotating frame 43 is driven to rotate around the cylindrical body 4. As a result, the optical fiber cable supply bobbin 85 is also moved while revolving around the outer periphery of the cylindrical body 4, and is spirally wound around the outer periphery of the optical fiber cable overhead wire 1 fed out from the supply bobbin 85. Since a brake is applied to the supply bobbin 85 from a brake belt 87 via a brake drum 86, back tension is applied to the unwound optical fiber cable, so that it is wound around the overhead wire 1 without slack. In this way, as the optical fiber cable is wound, the ratchet drive pawl 121 engages the teeth of the ratchet wheel 120 once every time the rotating frame 43 makes one revolution, rotating the ratchet wheel 120 by one tooth. . This rotation of the ratchet wheel 120 rotates the weight drive screw shaft 116, and the clutch nut 10 is rotated.
The balance weight 100, which is engaged with the weight drive screw shaft 116 via the weight drive screw shaft 116, is driven in a direction toward the cylindrical body 4 by the rotation angle of the screw shaft 116. Therefore, even if the weight of the supply bobbin 85 becomes lighter due to the unwinding of the optical fiber cable, the balance weight 100 is moved toward the cylindrical body 4 side accordingly, so that the rotational moment can be automatically and sequentially balanced. can.

For example, if the supply bobbin 85 is empty and the balance weight 100 has been moved to a position adjacent to the frame base 49, replace the supply bobbin 85 with a fully wound one and tighten the clutch lever 108. In FIG. 23, turn the clutch 115 counterclockwise to turn it off. That is,
When the clutch lever 108 is turned counterclockwise, the clutch operation disc 104 is also turned counterclockwise, and the directions of the long holes 106A and 106B are changed by the rotation angle. As a result, the elongated hole 106A, 1
Pins 112A and 112B are inserted into 06B. The clutch nut 119 has a long hole 106A,
Pins 112A, 112 due to angle change of 106B
2 at the splitting surface 111 by moving B in the direction of separating from each other.
The clutch 115 is separated and disengaged from the weight drive screw shaft 116, and the clutch 115 is turned off. Once this state is reached, the operator can pull the balance weight 100 back to its original position all at once. After returning to the original position, clutch lever 108
When the clutch nut 119 is turned clockwise to return to the state shown in FIG. 23, the clutch nut 119 is again joined at the split surface, and its screw hole 110 is engaged with the screw shaft 116.

(Effects of the Invention) As explained above, the fiber cable winding machine according to the present invention is equipped with a balance weight that balances the supply bobbin in the optical fiber cable winding machine main body, so that the weight due to the unwinding of the optical fiber cable from the supply bobbin is reduced. Since this balance weight is structured to automatically move toward the center of rotation as the supply bobbin decreases, the rotational moment can always be balanced even if the weight of the supply bobbin decreases. Therefore, the winding operation can be performed without applying excessive force due to unbalanced rotational moment to the weak optical fiber cable.
In addition, in the present invention, the force for rotating the balance weight is obtained by the ratchet mechanism, so the load is lighter than when using a reduction gear mechanism, etc., and it is possible to reduce the weight by suppressing the increase in the capacity of the drive source. can. Furthermore, in the present invention, since the rotating frame receives its rotational force from the drive source of the self-propelled machine, the optical fiber cable is not subjected to tension for winding unlike conventional products. There is no risk of damage.

Further, according to the second invention of the present application, since the clutch is interposed between the balance weight drive screw shaft and the balance weight, the balance weight can be returned to its original position after it has moved toward the rotation center. The return work can be easily performed all at once, and work efficiency can be improved.

[Brief explanation of drawings]

The drawings show an embodiment of the optical fiber cable winding machine for overhead lines according to the present invention. Figure 1 is a plan view of the winding machine, and Figure 2 is a partially broken side view of the winding machine. Figure 3 is a sectional view taken along the line CC in Figure 2, Figure 4 is
The figure is a sectional view taken along the line A-A in Figure 2, and Figures 5 and 6 are front and side views of the running frame of the winding machine.
Figures 7 and 8 are front and partially cutaway side views of the eccentric cam used in the self-propelled machine of the winding machine, and Figures 9 and 10 are part of the rotating frame of the winding machine. 11 is a front view of the left end plate of the rotating frame shown in FIG. 9;
The figure is a sectional view taken along the line D-D in Figure 2, Figure 13 is a front view of the gear attached to the rotating frame of the winding machine, and Figure 14 is a gear fitted into the slit of the tooth shown in Figure 13. Fig. 15 is a plan view of the first connecting piece that connects the gear piece to the gear, Fig. 16 is a right side view of Fig. 15, and Fig. 17 is a portion of the second connecting piece. 18 is a right side view of FIG. 17, FIG. 19 is a front view of the clamp piece that connects both connecting pieces, and FIG. 20 is a side view of the bolt attached to the second connecting piece. Figures 21A and B are front and side views of the torsion spring for preventing the clamp piece from coming off;
Fig. 22 is a sectional view taken along the line B-B in Fig. 2, Fig. 23 is a partially cutaway front view showing the clutch portion of the balance weight, Fig. 24 A and B are a plan view and front view of the balance weight, Fig. 25 The figure is a cross-sectional view of the central part of the balance weight, Figures 26A and B are front views and longitudinal cross-sectional views of the clutch operating disc incorporated into the balance weight, and Figure 27 is a cross-sectional view of the retainer ring that prevents the clutch operating disc from slipping out. 28 and 29 are front views and cross-sectional views of the clutch nut incorporated into the balance weight, and Figures 30A and B are front views and longitudinal cross-sectional views of the ratchet wheel that provides driving force to the balance weight. be. 1... Overhead line, 2... Self-propelled machine, 3... Optical fiber cable winding machine body, 4... Cylindrical body, 5... Slit, 6
... Traveling frame, 7... Drive wheel, 8... Drive source, 9...
First rotational force transmission mechanism, 43... Rotating frame, 5
6... Second rotational force transmission mechanism, 85... Optical fiber cable supply bobbin, 98, 99... Weight fiber cable, 100... Balance weight, 1
01A, 101B...Fiber cable groove, 102
...Circular recess, 103...Square elongated hole, 104...Clutch operating disc, 105...Bearing through hole, 106A, 10
6B... Long hole, 107... Presser ring, 108... Clutch lever, 109... Clutch nut, 110...
Screw hole, 111... split surface, 112A, 112B...
Pin, 113...Lock pin, 114...Lock hole,
115...Clutch, 116...Weight drive screw shaft, 117...End plate, 118, 119...Bearing, 12
0... Ratchet wheel, 121... Ratchet drive claw.

Claims (1)

[Scope of Claims] 1. A self-propelled machine that is suspended and supported by an overhead line around which an optical fiber cable is to be wound, and that is self-propelled along the longitudinal direction of the overhead line by the driving force of a drive source, and a rear part of the self-propelled machine. an optical fiber cable winding machine main body that is supported by the self-propelled machine and rotates around the outer periphery of the overhead wire in response to a rotational force from the drive source of the self-propelled machine, and feeds out the optical fiber cable and winds it spirally around the outer periphery of the overhead wire; The optical fiber cable winding machine main body includes a rotating frame rotatably supported by the self-propelled machine so as to rotate around the overhead wire, and a rotating frame that rotates around the overhead wire. a rotational force transmission mechanism that transmits rotational force from a drive source of the self-propelled machine in a rotational manner; An optical fiber cable supply bobbin for feeding out the optical fiber cable to be wound around an overhead wire, and an optical fiber cable supply bobbin supported slidably in a radial direction of the overhead wire on a side of the rotating frame opposite to the support side of the optical fiber cable supply bobbin. a balance weight, a balance weight drive screw shaft that is rotatably supported by the rotating frame and threaded through the balance weight, a ratchet wheel fixed to the screw shaft, and the rotating frame. The balance weight is supported by the self-propelled machine so as to be on the revolution circumference of the ratchet wheel as the ratchet wheel rotates, and the balance weight engages with the ratchet wheel as it revolves, and the balance weight connects the ratchet wheel to the overhead wire. A machine for winding optical fiber cables around an overhead line, characterized in that it is equipped with a ratchet drive claw that rotates in a direction toward which it approaches. 2. A self-propelled machine that is suspended and supported by an overhead wire to be wrapped around an optical fiber cable and that self-propels along the longitudinal direction of the overhead wire by the driving force of a drive source, and a self-propelled machine that is supported at the rear of the self-propelled machine and that an optical fiber cable winding machine main body that receives rotational force from a driving source of a running machine and rotates around the outer periphery of the overhead wire while feeding out the optical fiber cable and winding it spirally around the outer periphery of the overhead wire; The main body of the optical fiber cable winding machine includes a rotary frame rotatably supported by the self-propelled machine so as to rotate around the overhead wire, and a rotary frame rotatably supported by the self-propelled machine so as to rotate around the overhead wire; a rotational force transmission mechanism that transmits rotational force from a drive source of the machine; and an optical fiber cable that is rotatably supported on one radial end side of the rotating frame and that is wound around the overhead wire while revolving around the outer periphery of the overhead wire. an optical fiber cable supply bobbin to be fed out; a balance weight supported slidably in the radial direction of the overhead wire on a side of the rotating frame opposite to the supporting side of the optical fiber cable supply bobbin; a balance weight drive screw shaft passing through the balance weight in a rotatably supported state;
a clutch interposed between the balance weight and the balance weight drive screw shaft; a ratchet wheel fixed to the screw shaft; a ratchet wheel drive claw supported by the self-propelled machine and engaged with the ratchet wheel as it revolves to rotate the ratchet wheel in a direction in which the balance weight approaches its center of rotation; A machine for winding optical fiber cables onto overhead lines.