JPH0971369A - Automatic winding device for rope for drawing electric wire or cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic winding device of an electric wire or a rope for drawing cable mechanically carrying out tail hand taking work by eliminating the tail hand taking work by a worker and extremely simple in structure and safe. SOLUTION: On a device which draws a rope 1 for drawing used to draw an electric wire or a cable by a proper winch and winds up the rope 1 on a winding drum 5 in the rear of this winch, a tension gage 2 to once suspend the rope 1 to introduce to an axle winch 3 is provided, and a tail hand taking roller group 4 is provided at the axle winch 3. This tail hand taking roller group 4 is constituted of a drive roller 18 having a shaft in parallel with a shaft of the axle winch 3 and a pressure roller 22 to constantly pressurize the rope 1 suspended around an outer periphery of this drive roller 18, additionally, the winding drum 5 having a traverser 46 is provided in the rear of the tail hand taking roller group 4, and an alarm device to alarm tensile force abnormality measured by the tension gage 2 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic winding device for pulling a tow rope used for extending an electric wire or cable, such as aerial or underground, with a winch and winding the rope on a winding drum.

[0002]

2. Description of the Related Art When a rope such as a messenger rope for towing used for wire extension of a conventional electric wire or cable is pulled up by a winch and wound up, an operator takes a hand of the rope fed from the winch and then winds it around a drum ing.

Although it is conceivable that the winch is directly wound around the drum instead of the operator's handing, the rope unreeled from the winch must always be tensioned and wound up by the winding drum. In this case, cooperation between the winch and the winding drum is extremely difficult. Furthermore, unnecessary tension may be applied to the rope wound around the winding drum, and the rope may be caught between the already wound ropes or may be randomly wound. Also extremely complex,
It becomes a large-scale winding device. Therefore, the worker is currently winding the rope around the winch drum several times, taking the tail of the rope, and separately winding the rope around the winding drum.

[0004]

However, the hand-taking work by the operator must be performed while pulling the rope fed from the winch while always applying tension to the rope. May be caught in the winch, in which case the operator himself is also caught in the winch, which is extremely dangerous.

Therefore, the present invention does not require such an operator's tail picking work, and mechanically carries out the tail picking work, and has an extremely simple structure and is safe, and includes an electric wire or cable puller including a tail picking roller group. An automatic rope winding device is provided to solve the above problems.

[0006]

According to a first aspect of the present invention, an apparatus for retracting a tow rope used for extending an electric wire or a cable by an appropriate winch, and winding the rope around a take-up drum behind the winch. In, a tensiometer for hanging a rope to be introduced into the winch is provided, and a tail picking roller group is provided at the winch position, and the tail picking roller group has a shaft parallel to the winch shaft and is driven by an appropriate drive source. It consists of a rotating drive roller and a pressing roller that constantly presses the rope applied to the outer circumference of the drive roller to the drive roller, and a winding drum having a traverser is provided behind the rear hand take-up roller group, and the tension An automatic winding device for an electric wire or cable tow rope provided with an alarm device for alarming the tension abnormality measured by a meter. The electric wire or cable pulling rope referred to herein includes other ropes or wires such as a messenger rope for pulling the electric wire or cable by connecting one end to the tip of the extending electric wire or cable.

Further, the invention of claim 2 is an apparatus for retracting a tow rope used for extending an electric wire or a cable by an appropriate winch and winding the rope around a take-up drum at the rear of the winch. A drive roller intervening between the take-up drums and having a shaft parallel to the winch and interlocking with the winch is provided, and the drive roller has a groove for winding the rope once or several times. An automatic winding device for an electric wire or cable pulling rope having an automatic tail picking roller group provided with a pressing roller that constantly presses the outer circumference of the rope that has entered one of the grooves of the roller in the groove direction with an ammunition machine.

According to a third aspect of the present invention, in a device for retracting a tow rope used for extending an electric wire or a cable by an appropriate winch and winding the rope around a take-up drum behind the winch, the winch is A drive shaft rotating by an appropriate drive source and a large-diameter winch drum parallel to the drive shaft are rotatably supported by a bearing body, and an appropriate means for transmitting the rotation of these drive shafts to the winch drum is provided. A wire or cable towing rope having a drive roller fixed to the shaft, and an automatic tail picking roller group rotatably provided with a pressing roller for urging the rope to be hung on the outer circumference of the drive roller by an ammunition machine to constantly press the drive roller. The automatic winding device.

According to the invention of claim 4, a pulling rope used for extending an electric wire or a cable is drawn in by an appropriate winch, and the rope is made tensionless by a tail picking drum provided at the rear of the winch. In a device that winds up the take-up drum, a guide arm is projected from a substantially central portion of the drum of the support material provided between the support frames on both sides of the take-up drum through a universal joint, and the tip of the guide arm is provided. A traverser having ball rollers provided on both sides of a rotatably supported sheave, the traverser having a take-up drum configured such that the ball rollers are always in contact with the outer circumference of the take-up drum by its own weight, An automatic winding device for a rope for pulling an electric wire or a cable was used.

According to the invention of claim 5, a towing rope used for extending an electric wire or a cable is pulled by an appropriate winch, and the rope is made tensionless by a tail picking drum provided at the rear of the winch. In a device that winds up the take-up drum, place a screw rod between the support frames on both sides of the take-up drum, facing the take-up drum, and cut left and right reciprocating screws to the outer circumference of this screw rod to a certain length. , A wire or cable provided with a rotatable sheave screwed to the screw on the threaded rod, provided with a groove for hanging the rope on the outer periphery of the sheave, and provided with an appropriate drive source for rotationally driving the winding drum. It was used as an automatic winding device for tow ropes.

According to the first aspect of the invention, the rope introduced into the winch is temporarily placed on a tensiometer to measure the tension of the rope. Also, since the rope unwound from the winch is continuously unwound, it is necessary to pull it out by applying tension, but these ropes are applied to the drive rollers of the above-mentioned hand picking roller group, and the rope applied to this drive roller is The outer circumference is constantly pressed by a pressing roller.
Therefore, the driving roller and the pressing roller play a role of handling the tail. Therefore, the rope that has passed through these tail picking roller groups is not tensioned and can be easily wound by the winding drum. When the tension is abnormally displayed together with the tension display by the tensiometer, this is alarmed, and when the tension is further increased, a signal for stopping the rotation of the winch is sent.

In the invention of the second aspect, since the rope paid out from the winch is continuously paid out, it is necessary to apply tension to pull out the rope, but the ropes are rotated in conjunction with the winch. It is applied to the drive roller, and the outer circumference of the rope that has entered the groove of the drive roller is constantly pressed by the pressing roller. Therefore, the driving roller and the pressing roller play a role of handling the tail. Therefore, the rope passing through these tail picking roller groups is not tensioned and can be easily wound by the take-up drum.

According to the third aspect of the invention, since the rope paid out from the winch is continuously paid out, it is necessary to apply tension to pull it out. The rope hung on the outer circumference of the roller is constantly pressed against the drive roller by the pressing roller. Therefore, the driving roller and the pressing roller play a role of handling the tail. Therefore, the rope passing through these tail picking roller groups is not tensioned and can be easily wound by the take-up drum. Further, since the winch drum is not directly connected to the drive source, but the rotation of the drive shaft rotated by an appropriate drive source is transmitted by an appropriate transmission means, the winch drum can have a large diameter and can be driven with the winch drum. Decelerated rotation can be achieved by increasing the transmission ratio with the shaft.

Further, in the invention of claim 4, the rope fed from the winch is put in a tensionless state by applying it to the group of tail picking rollers, and then in the winding drum for winding this, the winding drum is rotationally driven to wind the rope. When going, ropes are hung on the sheaves of the traverser provided at the tip of the guide arm, and these ropes are wound around the outer circumference of the drum. Therefore, the traverser rolls by its own weight to the low portion of the rope wound around the drum outer periphery by the ball rollers at both ends of the sheave. Therefore, the rope hanging on the sheave of the traverser is always guided after being guided to a low position on the outer circumference of the drum and then wound. At that time, the guide arm and the traverser are universally rotated and bent with respect to the support material.

According to the fifth aspect of the present invention, when the winding drum is rotated to wind the rope, the rope is once wound around the outer periphery of the sheave screwed to the screw rod and then wound around the winding drum. As a result, the sheave is pulled by the rope and rotationally moves. When the sheave comes to the end of the threaded portion at one end of the threaded rod, the screw automatically folds back because it is a left and right reciprocating screw, and rotates toward the other end. Therefore, the sheave guides the rope smoothly from one end to the other end of the drum.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show a first embodiment of the present invention. FIG. 1 shows an overall schematic view. A tensiometer 2 for measuring the tension of a rope 1 for pulling used for extending an electric wire or a cable is provided, and an axle winch 3, a tail picking roller group 4, and a winding drum 5 are provided behind this. It is provided. Further, a tension indicator 6 for displaying the tension measured by the tension meter 2 is provided.

Further, the tensiometer 2 makes a U-turn of the four-sided guide roller 7 for introducing the rope 1, the movable roller 8 for moving the support shaft 8a by contracting a spring or the like according to the tension, and the rope 1 drawn out from the movable roller 8. A guide roller 9 is provided to be pulled out from the tensiometer 2.

The tension meter 2 is attached to the rope 1 from an appropriate direction.
In order to remove it, these are passed through the four-sided guide roller 7, turned to the movable roller 8 and then applied to the guide roller 9 to make U
It is turned and led out from the tensiometer 2. Then, when the tension measured by the tension meter 2 is constantly displayed on the tension indicator 6 and an abnormal tension occurs, this is warned,
When an even higher tension is measured, a signal is sent from the tension indicator 6 to the drive source 50 such as the engine of the axle winch 3 so that the rotation of the axle winch 3 is stopped.

2 to 4, the detailed construction of the tail picking roller group 4 will be described. An annular bearing body 13 is provided on the outer circumference of an axle winch 3 which can be attached to an axle (not shown) via a bearing 12. The axle winch 3 is rotatably supported. The bearing body 13 is supported by one end of a connecting plate 14, and a bearing 15 is fixed to the other end of the connecting plate 14. This bearing 15 is bearing 1
A drive shaft 17, which is substantially parallel to the central axis of the axle winch 3, is rotatably supported through 6 through. At one end of the drive shaft 17, there is provided a drive roller 18 located beside the axle winch 3, and on the outer periphery of the drive roller 18, there are provided a small-diameter outer peripheral groove 18a and a large-diameter outer peripheral groove 18b around which the rope 1 is wound. There is.

Also, from the lateral side of the outer periphery of the bearing 15 to the arm 19
A pressing shaft 21 whose one end is rotatably supported by a pin 20 is provided at the tip of this arm 19, and a pressing roller 22 is rotatably supported at the other end of this pressing shaft 21. The pressing roller 22 has an outer peripheral groove 22.
An annular convex portion 23 is provided in the central portion of a, and the annular convex portion 23
The outer circumference has a concave cross section that is slightly inwardly carved. A spherical grip 24 is provided at the tip of the pressing shaft 21. Further, a bearing 25 is provided on the outer periphery of the drive shaft 17 beside the drive roller 18, and between the bearing 25 and the pressure shaft 21 beside the pressure roller 22, two pressure springs are provided so as to sandwich the pressure shaft 21. 26 are provided, and the outer peripheral groove 22a of the pressing roller 22 is constantly pressed against the large-diameter outer peripheral groove 18b of the drive roller 18 by the biasing force of these pressing springs 26.

A pulley 27 is fixed to the other end of the drive shaft 17, and an outer peripheral groove 27a having a V-shaped section is formed on the pulley 27 and an outer peripheral groove 11a having a V-shaped section formed on the outer periphery of the axle winch 3. The V-belt 28 is passed between the two. Further, a guide arm 29 having a guide groove at the tip thereof is provided between one end of the connecting plate 14 and the axle winch 3 and the drive roller 18 so as to project therefrom. A handle 31 is provided between the connecting plate 14 and the support plate 30 protruding from one end of the bearing body 13. In addition, as shown in FIG.
The driven roller 34 located between the small-diameter outer peripheral groove 18a and the large-diameter outer peripheral groove 18b of the drive roller 18 is rotated at the tip of a shaft 33 parallel to the drive shaft 17 having one end fixed to the arm 32. It is provided freely.

The axle winch 3 is attached to the axle, and the rope 1 derived from the tension meter 2 is wound around the axle winch 3 several times, and this is wound around the small-diameter outer peripheral groove 18 of the drive roller 18.
a and the outer peripheral groove of the driven roller 34, and this is further wound around the large-diameter outer peripheral groove 18b of the drive roller 18. At that time, the pressing shaft 21 is pressed against the pressing spring 2 by holding the grip 24 by hand.
The pin 1 is rotated around the pin 20 against the force of 6 to insert the rope 1 into the large-diameter outer peripheral groove 18b of the drive roller 18. As a result, the outer circumference of the rope 1 before exiting from the large-diameter outer peripheral groove 18b is covered with the annular convex portion 23 in the outer peripheral groove 22a of the pressing roller 22.
Presses the rope 1 against the large-diameter outer peripheral groove 18b.

Therefore, the rope 1 unreeled from the axle winch 3 is rotated by the drive roller 18 which is interlocked with the axle winch 3 to rotate the small diameter outer peripheral groove 18a and the driven roller 34.
The outer peripheral groove 1 of the drive roller 18
8b, the rope 1 is held between the large-diameter outer peripheral groove 18b and the annular convex portion 23 in the outer peripheral groove 22a of the pressing roller 22 before coming out of the large-diameter outer peripheral groove 18b. It is led out from the outer peripheral groove 18b. Therefore, the rope 1 unreeled from the axle winch 3 is pulled out at the holding position, and is pulled out from the axle winch 3 while applying tension. However, when it passes through the holding portion, it is introduced into the winding drum 5 without tension.

Next, the winding drum 5 will be described with reference to FIGS. 5 and 7. The drum 37 is freely rotatable on the shaft 36 provided between the two substantially triangular supporting frames 35 provided at intervals. Supported by. Further, the gear 39 of the drive shaft of the motor 38 provided on the support shaft 36 and the gear 40 integrally provided on the drum 37 are connected by a chain 41, so that the rotation of the motor 38 causes the drum 37 to rotate. Further, a torque limiter and a clutch mechanism are internally provided in the gear 40, and when the torque of a certain value or more is applied to the drum 37, the clutch slips and the rotation of the motor 38 is not transmitted to the drum 37. Further, a guide arm 44 is provided to project upward from the outer periphery of the drum 37 through a universal joint 43 from the substantial center of the support member 42 located on the lower front side where the two support frames 35 are located on both sides. A traverser 46 is connected to the tip of the arm 44 via a universal joint 45.

The traverser 46 extends beyond the top of the outer periphery of the drum 37 and reaches the back surface of the outer periphery of the drum. The traverser 46 rotatably supports a sheave 47 as shown in FIG.
48 is rotatably supported. The ball rollers 48, 48 are always in contact with the outer circumference of the drum 37 due to the weight of the traverser 46.

In the winding drum 5, the motor 38 is driven to rotate and the drum 37 is rotated. In this state, the rope 1 drawn out from the tail picking roller group 4 is wound around the outer circumference of the drum 37. When winding the rope 1 around the outer periphery of the drum 37, the rope 1 is first hung on the sheave 47 of the traverser 46 and then wound. Since the traverser 46 is supported by the universal joints 43 and 45, the traverser 46 can move from one end to the other end of the outer periphery of the drum 37, and the ball rollers 48 and 48 on both sides are always lower due to the weight of the traverser 46 and the rope 1. The rope 1 is guided by the traverser 46 and rolls around the lower portion of the outer circumference of the drum 37. Therefore, the winding of the rope 1 is made uniform.

In this way, the rope 1 for pulling, which is used for extending an aerial or underground electric wire or cable, is pulled in by the axle winch 3, and this is automatically taken up by the tailing roller group 4 and further wound up. Although it is wound up on the drum 5, the tension of the rope 1 is constantly displayed on the tension indicator 6 by the tension meter 2. When the tension is abnormal, the alarm device is activated. When the abnormal value is larger, the axle engine of the axle winch 3 is turned off and the axle winch 3 is stopped. Then, an abnormal torque is applied to the rotation of the drum 37 of the winding drum 5, and the rotation of the motor 38 is not transmitted to the drum 37 by the torque limiter and the clutch mechanism provided in the gear 40. The diameter of the winding drum 5 gradually increases as the rope 1 is wound, and the winding speed increases, but the rotation of the axle winch 3 is constant. In that case, too, the torque increases as described above, causing the clutch mechanism to slip the clutch, and the rotation of the motor 38 is not transmitted to the drum 37.

Next, a second embodiment of the present invention will be shown in FIGS. Among these, FIGS. 8 to 11 are detailed views of the axle winch and the tail picking roller group of the second embodiment, and a bearing for supporting the drive shaft 51 connected to an axle (not shown) by penetrating at one end thereof. The body 52 is provided, and the shaft 53 of the winch drum 53 having a large diameter is provided at the other end of the bearing body 52.
A is pivotally supported. A drive roller 54 made of hard rubber is fixed to the tip of the drive shaft 51 in parallel with the winch drum 53. A small diameter sprocket 55 is provided on the drive shaft 51 on the side opposite to the drive rollers 54, and a large diameter sprocket 56 is provided on the shaft 53a on the side opposite to the winch drum 53. These sprockets 55 and 56 are provided.
A chain 57 is wound between the two so that the rotation of the drive shaft 51 is transmitted to the shaft 53a. Further, the gear ratio of the small diameter sprocket 55 and the large diameter sprocket 56 is about 1: 3.

Thus, this axle winch has a chain 57
Since the large-diameter winch drum 53 is driven to rotate, the rotation of the winch drum 53 is slowed down, and the rope wound around the winch drum is damaged or twisted as compared with the first embodiment. There is no danger of

Support plates 58 and 59 project from the bearing body 52 on both sides of the drive shaft 51 between the bearing body 52 and the drive roller 54, and upper ends of the support plates 58 and 59 are located on the respective support plates 58 and 59. A guide cylinder 60 having an open hollow hole is provided upright. A lower portion of a bolt rod 61 is slidably inserted into each hollow portion of these guide cylinders 60. A connecting plate 62 is provided above the bolt rods 61. A shaft 63 projects horizontally from the side of the central portion of the connecting plate 62, and a pressing roller 64 is provided at the tip thereof.
The pressing roller 64 has such a position and size that the outer periphery of the drive roller 54 can be inserted into the outer peripheral groove 64a.

A stopper rod 65 is pivotally supported on the shaft 63 between the pressing roller 64 and the connecting plate 62. The lower end of the stopper rod 65 can be placed on the drive shaft 51 as shown in FIG. 11, and in this state, the connecting plate 62 is raised and the pressing roller 64 and the drive roller 5 are moved.
Separate from 4. Therefore, a rope can be inserted between them. Further, both ends of the connecting plate 62 and the supporting plates 58,
Spring springs 66 are provided between the springs 59 and 59, and the springs 66 are urged to constantly push down the connecting plate 62 and press the pressing roller 64 against the driving roller 54.

The arm 67 protruding from one end of the bearing body 52 to the side of the winch drum 53 is provided with a handle 68, and the other end of the bearing body 52 is provided with a handle 69 to the side of the drive roller 54. enter. In addition, bearing body 5
A roll guide 70 projects above the winch drum 53 from No. 2, and a roller 71 is rotatably provided at the tip of the roll guide 70. A roll guide 72 projects from the bearing body 52 between the winch drum 53 and the drive roller 54, and a roller 73 is rotatably provided at the tip of the roll guide 72.

Then, one end of the drive shaft 51 is attached to the axle, the rope 1 derived from the tensiometer is wound around the winch drum 53 several times as in the first embodiment, and the rope 1 is hung on the outer periphery of the drive roller 54. , Pressing roller 6 from above
Put 4 on. As shown in FIG. 11, the lower end of the stopper rod 65 is placed on the drive shaft 51 to connect the connecting plate 6 to it.
2 is lifted against the force of the spring spring 66, and the pressing roller 64 is separated from the driving roller 54. As a result, the rope 1 is hung on the outer periphery of the drive roller 54, and the stopper rod 6 is again attached.
When 5 is rotated and its lower end is removed from the drive shaft 51, the lower portion of each bolt rod 61 is pushed into the hollow portion of each guide cylinder 60 by the force of the spring spring 66. Then, in this way, the connecting plate 62 is lowered and the outer peripheral groove 6 of the pressing roller 64 is lowered.
The rope 1 hung on the outer periphery of the drive roller 54 in 4a is held between the drive roller 54 and the pressing roller 64.

Therefore, the rope 1 unreeled from the axle winch 3 is pulled out at the holding position and is pulled out from the axle winch 3 while applying tension. However, when it passes through the holding portion, it is introduced into the winding drum without tension.

Next, FIGS. 12 and 13 show a second embodiment of the present invention.
FIG. 12 shows the take-up drum in the embodiment of the present invention, which will be described with reference to FIGS. 12 and 13. Two substantially triangular support frames 75 are provided at intervals.
A drum 77 is rotatably supported on the shaft 76 provided between the two. Further, a gear 79 provided on the outer circumference of a drive shaft 78 rotatably fitted to one end of the shaft 76 and a gear 81 of a drive shaft of a motor 80 provided on the support frame 75 are connected by a chain 82. Further, a connecting fitting 83 extends from the drive shaft 78 along the flange surface of the drum 77, and the locking tool 8 locked to the edge of the flange of the drum 77.
4 and the connecting metal fitting 83 are connected by a bolt body 85 that can be tightened, so that the rotation of the motor 80 is controlled by the drum 77.
Is transmitted to

Further, a special cam is provided at the gear 81 and a proximity switch 86 is provided at a position opposite to the special cam so that the gear 81 slips and does not rotate when a load of a certain value or more is applied. Further, in this state, the rotation of the motor 80 is stopped when the time set by the timer elapses. Further, the traverser device of the winding drum has a screw rod 87 between the two support frames 75 facing the drum 77, and a left and right reciprocating screw is cut on the outer periphery from substantially one end to the other end of the screw rod 87. ing.
A sheave 88 having an outer peripheral groove 88a is screwed onto the screw rod 87.

The sheave 88 is rotationally moved from one end to the other end of the threaded rod 87 when it is externally rotated. Then, when it reaches each end of the screw rod 87, the screw rod 87 folds back and rotationally moves toward the opposite end. Therefore, when the rope 1 is hung on the outer peripheral groove 88a of the sheave 88 and one end thereof is fixed to the drum 77 and the drum 77 is rotated by the motor 80, the rope 1 is wound around the outer periphery of the drum 77, but at that time, the sheave 88 is rotated. Rotates on the threaded rod 87, and the rope 1 is guided by the sheave 88 and is wound around the end of the drum 77. At that time, the sheave 88 is automatically folded back at each end of the screw rod 87.

Although the axle winch 3 is used in each of the above-described embodiments, the invention is not limited to the axle winch, and a winch driven by an appropriate drive source such as a motor or an engine may be used. Further, although the tail picking roller group 4 is interlocked with the axle winch 3 in the above-mentioned embodiment, the invention is not limited to this, and the drive roller 18 or the drive shaft 51 may be rotated by an original drive source. Further, the winding drum 5 may be rotated by an appropriate drive source. Further, the force of the pressing spring 27 of the tail picking roller group 4 or the spring force of the spring spring 66 in the above embodiment can be adjusted.
The driven roller 34 may not be used in some cases, for example, by increasing the outer diameter of the drive roller 18 in the above-described embodiment.

[0039]

According to the invention of claim 1, the rope to be introduced into the winch is temporarily put on a tensiometer, and the rope is pulled by the winch while measuring the tension of the rope. Further, the rope fed from the winch is continuously fed, but the tail picking roller group picks up the rope automatically.
The rope that has passed through the trailing roller group is not tensioned and can be easily wound by the winding drum. When the tension is displayed by the tension meter and the tension is abnormal, the alarm is issued. Therefore, as before,
It is not necessary for the operator to pick up the rope fed from the winch, and the overhead cable or underground cable can be automatically wound up, which saves labor and ensures safety.

According to the second aspect of the present invention, the rope fed from the winch is continuously fed, but the tail picking roller group can automatically pick up the tail. This rear hand take-up roller group has a structure in which the rope is held by a drive roller that rotates in conjunction with the winch and a pressing roller that constantly presses the drive roller with a spring. Certainly. Further, the rope that has passed through this tail picking roller group is not applied with tension, and can be easily taken up by the take-up drum.

According to the third aspect of the present invention, the winch drum is not directly connected to the drive source, but the rotation of the drive shaft connected to the appropriate drive source is transmitted by the appropriate transmission means. Since the tow rope is wound around the winch drum having a large diameter as described above, there is an effect that the winding of the rope is eliminated and damage to the rope is reduced. Moreover, since the drum diameter is large, the gripping force of the driving roller and the pressing roller on the rope of the tail picking roller group can be small, and the pressing device can be simplified. Further, by increasing the transmission ratio between the winch drum and the drive shaft, decelerated rotation can be performed, in which case the output of the engine may be small. Therefore, smooth rotation can be obtained.

According to a fourth aspect of the present invention, the rope fed from the winch is tension-free by applying the rope to the tail picking roller group, and then the winding drum that winds the rope has an extremely simple traverser device. The rope that is always wound can be guided to a lower part of the outer circumference of the drum, and the rope can be evenly wound around the outer circumference of the drum.

The invention of claim 5 has a traverser device which is simpler than that of the invention of claim 4, and is one in which a sheave is screwed to a threaded rod having a reciprocating screw cut on its outer periphery. By winding the rope around the sheave, the sheave rotates by the winding operation of the rope around the winding drum. Therefore, in this traverser device, the winding drum and the sheave are not rotationally connected, and therefore the rotation of the winding drum is constant, but the sheave does not pull the rope even when the rope pulls faster as the rope is wound. It can follow the rope pulling speed. Further, the sheave can be independently rotated regardless of the drum.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an entire winding device according to a first embodiment of the present invention.

FIG. 2 is a front view of a rear hand picking roller group according to the first embodiment of the present invention.

FIG. 3 is a partial cross-sectional plan view of a tail picking roller group according to the first embodiment of the present invention.

FIG. 4 is a partial side view of a rear hand picking roller group according to the first embodiment of the present invention.

FIG. 5 is a side view of the winding drum according to the first embodiment of the present invention.

FIG. 6 is a front view of the winding drum according to the first embodiment of the present invention.

FIG. 7 is an enlarged front view of the traverser of the winding drum according to the first embodiment of the present invention.

FIG. 8 is a partial cross-sectional plan view of a tail picking roller group according to a second embodiment of the present invention.

FIG. 9 is a front view of a rear hand picking roller group according to a second embodiment of the present invention.

FIG. 10 is a partial side view of the rear edge picking roller group according to the second embodiment of the present invention.

FIG. 11 is a partial front view showing a state in which the pressing roller is separated from the drive roller of the tail picking roller group according to the second embodiment of the present invention.

FIG. 12 is a side view of a winding drum according to a second embodiment of the present invention.

FIG. 13 is a front view of a winding drum according to a second embodiment of the present invention.

[Explanation of symbols]

1 Rope 2 Tension Meter 3 Axle Winch 4 Rear Hand Roller Roller 5 Winding Drum 6 Tension Indicator 17 Drive Shaft 18 Drive Roller 21 Push Shaft 22 Push Roller 23 Annular Convex 26 Push Spring 27 Pulley 28 V Belt 34 Driven Roller 35 Support Frame 36 Shaft 37 Drum 38 Motor 42 Support Material 43 Universal Joint 44 Guide Arm 45 Universal Joint 46 Traverser 47 Sheave 48 Ball Roller 51 Drive Shaft 52 Bearing Body 53 Winch Drum 54 Drive Roller 60 Guide Tube 61 Bolt Rod 62 Connection Plate 63 Shaft 64 Pressing roller 65 Stopper rod 66 Spring spring 75 Support frame 76 Shaft 77 Drum 87 Screw rod 88 Sheave

Front Page Continuation (72) Inventor Hisao Umekawa 1-4, Niomibashi Koamicho, Chuo-ku, Tokyo Within Doryoku Co., Ltd. (72) Inventor Yoshio Yuasa 84-203 Shikidai, Asahi-ku, Yokohama-shi, Kanagawa

Claims (5)

[Claims] 1. A device for retracting a tow rope used for extending an electric wire or a cable by an appropriate winch, and winding the rope around a take-up drum at the rear of the winch. A total number is provided, and the tail picking roller group is provided at the winch position, the tail picking roller group has a shaft parallel to the winch axis, and a drive roller rotated by an appropriate driving source,
It consists of a pressing roller that constantly presses the rope hung on the outer circumference of the drive roller against the drive roller, and a winding drum having a traverser is provided behind the tail picking roller group to prevent the abnormal tension measured by the tensiometer. An automatic winding device for a wire rope for pulling an electric wire or a cable, which is provided with an alarm device for giving an alarm. 2. A device for retracting a towing rope used for extending an electric wire or a cable with a suitable winch and winding the rope around a winding drum at the rear of the winch, the device being interposed between the winch and the winding drum. A drive roller having an axis parallel to the winch axis and interlocking with the winch, the drive roller having a groove for winding the rope once or several times, and one of the grooves of the drive roller. An automatic winding device for a rope for pulling an electric wire or a cable, comprising: an automatic tail picking roller group provided with a pressing roller that constantly presses the outer circumference of the entered rope in a groove direction with an ammunition machine. 3. A device for retracting a towing rope used for extending an electric wire or cable with an appropriate winch and winding the rope around a winding drum behind the winch, wherein the winch is rotated by an appropriate drive source. A drive shaft and a large-diameter winch drum parallel to the drive shaft are rotatably supported by a bearing body, and an appropriate means for interlocking the drive shaft and the winch drum is provided, and a drive roller is fixed to the drive shaft. , Characterized in that it has an automatic tail picking roller group in which a pressing roller that constantly presses a rope hung on the outer periphery of this driving roller is rotatably provided.
Automatic winding device for ropes for towing electric wires or cables. 4. A pulling rope used for extending an electric wire or a cable is pulled by an appropriate winch, the rope is made tensionless by a tail picking drum provided behind the winch, and the rope is wound by a winding drum. In the device, a guide arm is projected from a substantially central portion of the drum of the support member provided between the support frames on both sides of the winding drum via a universal joint, and is rotatably supported at the tip of the guide arm. A traverser provided with ball rollers on both sides of the sheave is provided, and the traverser has a winding drum configured such that the ball roller is always in contact with the outer circumference of the winding drum by its own weight. Automatic winding device for cable pull rope. 5. A pulling rope used for extending an electric wire or a cable is pulled by an appropriate winch, the rope is made tensionless by a tail picking drum provided behind the winch, and the rope is wound by a winding drum. In the device, place a screw rod between the support frames on both sides of the take-up drum, facing the take-up drum, cut a left and right reciprocating screw on the outer circumference of the screw rod to a certain length, and attach the screw to the screw rod. A sheave screwed to the rotator is rotatably provided, a groove for hanging the rope is provided on the outer periphery of the sheave, and an appropriate drive source for rotationally driving the winding drum is provided. Automatic rope winding device.