JPH07137932A - Cable take-up device - Google Patents

Abstract

PURPOSE:To provide a cable take-up device capable of taking up a cable into an accurate figure eight shape without generating any folding tendency. CONSTITUTION:A cable 10 is engaged with the outer side of a pair of claw members 28 provided on the peripheral surface of a rotary drum 22 while a guide roller 36 supporting the cable so as to take up it is reciprocated on a track of a rail 30 arranged along the peripheral surface axial direction of the rotary drum 22 during the rotary drum 22 takes up the cable 10 by being rotated two times. Thereby the cable 10 is taken up into a figure eight shape on the peripheral surface of the rotary drum 22. At this time, since the cable 10 is taken up on the cylindrical drum 22, it is formed into an accurate figure eight shape with a gentle curve.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable winding device, and more particularly to a cable winding device for winding a cable such as an electric cable into a figure eight shape.

[0002]

2. Description of the Related Art In a laying work in which a cable such as an electric cable wound around a cable drum is unwound from a cable drum and extended, from one end (start point) to the other end (end point) of the extended route. In order to pull in the cable toward it, it is necessary to arrange a worker along the entire length of the route and pull in the cable, which requires a lot of manpower. Also, if the wire extension distance is short, the above wire extension method may be used, but if the wire extension distance is long, bring the bundle of cables to an appropriate location in the approximate center of the wire extension path and extend from that position. By pulling the cable toward the start point and the end point of the line route, it is possible to perform the wire drawing work by about half the number of workers as compared with the case where the entire length of the route is extended from the start point to the end point. Therefore, the cable is wound into a figure 8 shape as a carry-in means for bringing a bundle of cables in the middle of the wire extension. This is one end of the cable and the other end,
When pulling out toward the start point and the end point of the extended line of the cable,
This is to prevent twisting of the cable. That is, when the cable 10 is wound into a circular shape as shown in FIG. 9, when the cable 10 is extended, the twist shown in FIG. When the cable 10 is wound in a letter shape, twisting is eliminated when the cable 10 is extended, as shown in FIG. 9 to 12, the cross section of the cable 10 is shown in a quadrangular shape in order to explain the twist.

Conventionally, winding work for winding a cable in a figure 8 shape from a cable drum has been performed by many workers for a long time, which is a burden on the workers and
There was a problem that the efficiency of cable drawing work was reduced. For this reason, the applicant of the present invention has proposed that
Japanese Patent Publication No. 2 discloses a cable winding device that does not depend on human hands. This cable winding device allows a guide to reciprocate along a rotating shaft having a bent portion in the middle, and guides the cable so that the cable can move in the longitudinal direction, and interlocks with the rotating shaft to rotate the cable. The cable is wound around the bent portion of the shaft in a figure eight shape.

[0004]

However, the cable winding device disclosed in Japanese Utility Model Publication No. 62-33482 discloses a cable winding device having 8 cables on both sides of a bent portion formed at an intermediate portion of a rod-shaped rotating shaft.
Since the cable is wound in the shape of, there is a drawback that the cable bends at an acute angle when it is wound, and it has a tendency to bend and it is difficult to wind the cable into an accurate figure 8.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cable winding device capable of winding a cable into an accurate figure 8 shape without causing a bending tendency. .

[0006]

In order to achieve the above object, the present invention relates to a cable winding device for winding a cable in a figure 8 shape. A cable guide device for reciprocating the wound cable along the circumferential surface axial direction of the rotating drum,
A pair of claw members which are arranged at both end positions of the cable on the peripheral surface of the rotary drum for reciprocating motion, and engage the cable with the outside thereof, and the cable guide device is provided while the rotary drum makes two revolutions. It is characterized in that the cable is wound around the rotary drum in a figure 8 shape so as to reciprocate once.

[0007]

According to the present invention, while the rotary drum rotates twice to wind up the cable, the cable guide device reciprocates the cable once along the axial direction of the peripheral surface of the rotary drum, while the cable on the peripheral surface of the rotary drum is reciprocated. The cable is adapted to be engaged with the outer side of the pair of claw members arranged at the both ends of the reciprocating motion. As a result, the cable is wound around the peripheral surface of the rotating drum while forming an accurate figure 8 shape having a gentle curve.

When the cable is completely wound up, the pair of claw members are inclined to the side opposite to the outside where the cable engages, and then the cable is removed from the rotary drum. Further, when it is desired to change the winding diameter (size of the figure 8) of the cable wound around the rotary drum, the rotary drum is detachably provided in the apparatus main body, so that the rotary drum having a different drum diameter is replaced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a cable winding device according to the present invention will be described in detail below with reference to the accompanying drawings. Figure 1
It is a perspective view which shows 1st Example of the winding device 20 of the cable of this invention. As shown in FIG. 1, a rotating drum 22 is horizontally arranged above a device base 21 that is formed by four plate members in a rectangular shape. This rotary drum 22 is a device base 21.
A drum support plate 24, which is erected on one plate member 21A, is rotatably supported by a bearing (not shown) at the tip of the drum support plate 24 via a drum shaft 26. Further, a pair of L-shaped claw members 28 are provided at predetermined two positions in the circumferential surface axial direction of the rotary drum 22,
28 are arranged facing each other.

Further, a rail 30 is provided diagonally above the rotary drum 22 along the axial direction of the peripheral surface of the rotary drum 22, and both ends of the rail 30 are supported by a pair of rails erected on the apparatus base 21. It is supported on the upper ends of the bars 32, 32. A guide roller carriage 34 is slidably supported on the rail 30, and a guide roller 36 including a pair of upper and lower pressing rollers 36A and 36B is provided on the guide roller carriage 34.

A motor 38, which is a drive source, is installed on the apparatus base 21, and a rotary shaft 40 of the motor 38 is installed.
A chain 44 is hung between the drive gear 42 fitted in and the one gear 42 of the drum gears 42, 42 fitted in parallel on the drum shaft 26 of the rotary drum 22. Further, the drive unit of the motor 38 is connected to the control board 46 by electric wiring, and the motor 3 is driven by an instruction from the control board 46.
A rotation speed of 8 is controlled. The rotation speed control of the motor 38 is
For example, inverter control of an induction motor or the like is used. As a result, when the motor 38 rotates in the direction of the arrow 41 in the drawing at a predetermined rotation speed according to an instruction from the control panel 46, the motor 38
Is transmitted to the drum gear 42 via the chain 44 to rotate the rotary drum 22 in the direction of arrow 48 at a predetermined rotational speed.

The power of the motor 38 is transmitted to the guide roller carriage 34 via a power transmission mechanism such as a crank mechanism described later. That is, the gear box 50 is disposed near the drum gear 42 of the plate 21B located below the rail 30 of the apparatus base 20, and the output side of the gear box 50 is connected to a gear group (not shown) in the gear box 50. A disk-shaped crank 54 is supported by the crank shaft 52. On the other hand, on the input side of the gearbox 50, a rotary shaft 56 is connected to the gear group, and a rotary shaft gear 58 is fitted to the tip of the rotary shaft 56. Then, the other gear 42 of the drum gears 42, 42 and the rotary shaft gear 5
A chain 60 is hung between 8 and. Also,
A support plate 62 is erected at a substantially central position (corresponding to a substantially central position of the rail 30) of the plate member 21B on which the gear box 50 is arranged, and a pin 64 is provided at an upper end portion of the support plate 62.
A substantially central portion of the cylindrical slider crankcase 66 is swingably supported via the. Further, an elongated hole 68 is formed in the lower portion of the slider crankcase 66 in the vertical direction. Then, the pin 7 movably provided along the long hole 68.
Both ends of the crank arm 74 are rotatably connected between 0 and the pin 72 fixed to the peripheral edge of the crank 54. On the other hand, on the side surface of the guide roller carriage 34, there is a connecting rod 7 which is horizontal and is perpendicular to the rail 30.
The rear end of 6 is fixed. The upper end of the slider crank 80 is rotatably supported by the tip of the connecting rod 76 via a pin 78, and the lower portion of the slider crank 80 from the approximate center is the slider crank case 6.
6 is inserted so that a loose fitting state is formed. As a result, when the motor 38 is driven, the motor 38
Is transmitted in the order of the drum gear 42, the chain 60, the rotary shaft gear 58, the rotary shaft 56, and the gear box 50 to rotate the crank 54 in the direction of arrow 81 in the figure. The crank arm 7 is interlocked with the rotation of the crank 54.
When the rear end portion of 4 moves circularly, the tip end portion of the crank arm 74 moves along the elongated hole 68 of the slider crank case 66 while swinging the lower end portion of the slider crank case 66 in the AB direction in the figure. When the slider crankcase 66 swings in the A direction, the tip end of the slider crank 80 inserted in the slider crankcase 66 rotates around the pin 78 and guides the guide roller 36 through the guide roller carriage 34. Slide along 30 in the direction D in the figure. In addition, the slider crankcase 66
When oscillates in the B direction, the tip of the slider crank 80 rotates around the pin 78 and slides the guide roller 36 along the rail 30 in the C direction in the drawing. The relationship between the rotation of the rotary drum 22 and the slide of the guide roller 36 is such that the guide roller 36 rails between the pair of claw members 28, 28 while the rotary drum 22 makes two rotations by the power transmission mechanism described above. It is set to make one round trip along 30.

Further, four wheels 82 are attached to the apparatus base 21 so as to be movable. The operation of winding the cable 10 into a figure 8 by the cable winding device 20 of the present invention configured as described above will be described. First, the pair of claw members 2 provided on the rotary drum 22 are passed through the pair of pressing rollers 36A and 36B of the guide roller 36 through the tip of the cable 10 to be wound.
Connect to one of 8 and 28. At this time, in a state where the cable 10 connected to the claw member 28 is stretched, the pressing roller 36A,
Hold it between 36B. In this state, operate the motor 38,
The rotating drum 22 is rotated, and the guide roller 36 holding the cable 10 is installed along the rail 30 with the claw member 2
Reciprocate between 8 and 28. This allows the cable 1
2 to 6 while rotating the pressing rollers 36A and 36B of the guide roller 36 while tension is applied.
As shown in (a schematic view of the rotary drum 22 seen from above), the rotary drum 22 is wound into a figure 8 shape. That is, FIG.
When the rotary drum 22 rotates 180 ° from the start of winding, and the guide roller 36 slides in the C direction synchronously, the cable 10 is wound up to the state shown in FIG.

Next, when the rotary drum 22 rotates 180 ° (total 360 ° rotation) and the guide roller 36 slides to the position of the claw member 28 in the C direction in synchronization, the cable 10 is wound up to the state shown in FIG. To be At the position of the claw member 28, the guide roller 36 changes direction from sliding in the C direction to sliding in the D direction. However, since the slider crankcase 66 and the slider crank 80 are formed in a loose fitting state, the guide roller 36 is guided. The roller 36 is the claw member 2
At the 8th position, it is temporarily stopped. On the other hand, since the rotary drum 22 rotates at the same speed, the cable 10 engages with the outside of the claw member 28 as shown in FIG.

Next, when the rotary drum 22 rotates 180 ° (total 540 ° rotation) and the guide roller 36 slides in the D direction in synchronization, the cable 10 is wound up to the state shown in FIG. Then, the rotating drum 22 rotates 180 ° (total 720 ° = 2 rotations), and the guide roller 36 is synchronized.
When is moved to the position of the claw member 28 in the D direction, the cable 10 is wound up to the state shown in FIG. In this way, by repeating the rotation of the rotary drum 22 and the slide of the guide roller 36, the cable 1
Zeros are wound around the rotary drum 22 so as to form an eight-shaped bundle.

Finally, the bundle of cables 10 wound on the rotary drum 22 is removed from the pair of claw members 28, 28, and is pulled out in the axial direction of the rotary drum 22 and temporarily placed on the ground. Used for cable extension. According to the cable winding device 20 of the present invention, since the cable 10 is wound around the cylindrical rotary drum 22 while engaging with the outer sides of the pair of claw members 28, 28, the cable 10 is wound. The cable 10 has a gentle curve to form an accurate figure eight shape. Therefore, unlike the conventional cable winding device, there is no tendency to bend or the figure 8 becomes inaccurate.

Further, since the guide roller 36 can be wound while applying tension, it is possible to surely correct the twisting caused by being wound around the cable drum during the manufacturing of the cable, and to wind it in the shape of a figure 8. You can Next, a second embodiment of the cable winding device 20 of the present invention will be described. The same members as those in the first embodiment will be described with the same reference numerals.

The difference from the first embodiment is that the rotary drum 22 can be attached to and detached from the drum shaft 26, and the distance between the pair of claw members 28, 28 can be varied.
The point is that the claw member 28 can be inclined inward. As shown in FIG. 7, a drum shaft 26 is rotatably supported by a bearing 88 provided at the tip of the drum support plate 24. The base end side of the drum shaft 26 (drum support plate 24
Side) and the tip end side are respectively a pair of disc-shaped drum coupling plates 9
0 and 92 are fitted and fixed. Further, the size of each of the drum coupling plates 90 and 92 is formed such that the diameter of the drum coupling plate 92 on the tip end side is smaller than the diameter of the drum coupling plate 90 on the base end side. The rotary drum 22 is formed into a hollow cylindrical shape having the same length as the distance between the pair of drum coupling plates 90 and 92, and a circular opening 94 is formed at the center of the left and right side plates 22A and 22B. , 96 are formed. The opening 94 on the base end side of the drum shaft 26 is formed to be slightly smaller than the large diameter drum connecting plate 90, and the opening 96 on the tip end side of the drum shaft 26 is small in diameter.
It is formed one size smaller.

When the rotary drum 22 is mounted on the drum shaft 26, the rotary drum 22 is hung up to the height of the drum shaft 26 by a chain block (not shown) or the like, and the rotary drum 22 is opened from the opening 94 on the large side to the small side. Opening 9
6, the rotary drum 22 is moved so as to penetrate the drum shaft 26, and one side plate 22A of the rotary drum 22 is brought into contact with the drum coupling plate 90 on the base end side. In this state, both side plates 22A and 22B of the rotary drum 22,
Each of the drum coupling plates 90 and 92 is connected to a plurality of bolts 98,
Join at 98 ... Further, the rotary drum 22 is connected to the drum shaft 2
When removing from 6, perform the procedure in reverse order.

As a result, the rotary drum 22 having different body diameters
If multiple cables are prepared, the cable 10 can be wound into a figure 8 shape by using the rotating drums 22 having different body diameters. Therefore, the winding diameter of the cable 10 (size of figure 8) is required. It can be changed accordingly. Further, as shown in FIG. 7, long side plates 22A and 22B of the rotary drum 22 are formed in a long shape so that a predetermined gap 100 is formed in the rotary drum 22 with respect to the peripheral surface of the rotary drum 22. Pedestal for claw member 1
02 is installed. Further, the long holes 10 along the claw member pedestal 102 are provided at two locations near both ends of the peripheral surface of the rotary drum 22.
4, 104 are formed respectively. Then, the inverse T shown in FIG.
With the pair of claw members 28 formed in a character shape protruding from the elongated hole 104, the bolt 120 is attached to the claw member pedestal 102.
(See FIG. 8) It is stopped. The claw member base 102 has a plurality of bolt holes (not shown) for bolting.

Accordingly, when the distance between the pair of claw members 28, 28 is varied, the bolt 120 is used to mount the claw member pedestal 1.
No. 02, the claw member 28 is moved along the long hole 104, and the claw member pedestal 1 is again fixed with the bolt 120 at an appropriate position.
Fixed to 02. Therefore, within the length range of the long hole 104,
Since the distance between the pair of claw members 28, 28 can be varied, it is possible to change the winding diameter of the cable 10 wound in the figure 8 on the rotating drum 22 as in the case of changing the body diameter of the rotating drum 22. it can.

Next, the structure of the claw member 28 will be described with reference to FIG. The claw member 28 is mainly the claw member base 1
02 and a swing plate 110 that is swingably supported by the projecting member 106 via a pin 108.
Composed of. The swing plate 110 is the swing plate 110.
A spring spring 112 connected to the pin 108 and the pin 108 urges the spring 108 in the E direction in the figure. A claw 116 is swingably supported on the tip of the swing plate 110 via a pin 114, and the claw 116 is biased by a spring 118 in the G direction in the drawing.

As a result, the cable 10 is connected to the rotary drum 2
When the cable 10 rides on the claw 118 when being wound into 2,
The weight of the cable 10 causes the claw 116 to swing in the H direction. Therefore, the cable 10 is easily engaged with the claw member 28. In addition, after winding the cable 10 around the rotary drum 22,
By swinging the swing plate 110 in the F direction, the cable 10 can be easily removed from the claw member 28.

As described above, in the second embodiment, the cable 10 can be wound around the rotary drum 22 in the shape of a figure 8, and the cable 10 can be easily engaged with the claw member 28. Since it can be easily removed from the claw member 28, it is more convenient than the first embodiment. Although the rotary drum is cylindrical in this embodiment, it is not limited to this shape and may be polygonal. In addition, the power transmission mechanism is a gear,
Although the chain, the crank, the slider crank, etc. are used, the pulley, the belt, the cam, the link device, etc. may be used. In addition, the rotation force of the rotating drum and the driving force of the guide roller were obtained from one motor, and the movements of both were coordinated by a mechanical transmission mechanism. Coordination between the drum and the guide roller is detected by a sensor (optical sensor, proximity sensor, rotary encoder, etc.), and motor operation control is performed based on the sensor signal (signal processing by a computer or programmable controller, operation control of a servo motor, etc.) ). Also, the rotating drum is supported on the drum support plate in a cantilevered manner, but this is in consideration of attachment / detachment of the rotating drum. When detaching, the support part is separated on one side, or the rotating drum is arranged vertically (the guide roller is also slid up and down) to eliminate the problem of bending stress applied to the drum shaft when cantilevered. May be.

[0025]

As described above, according to the cable winding device of the present invention, the cable guide device is arranged along the circumferential surface axial direction of the rotating drum while the rotating drum rotates twice to wind the cable. Since the cable is engaged with the outside of the pair of claw members arranged on the peripheral surface of the rotating drum while reciprocating the cable once, the cable has a gentle curve and has an accurate figure-eight shape. It is wound on a rotating drum while forming. Therefore, unlike the conventional cable winding device, there is no tendency to bend or the figure 8 becomes inaccurate.

Further, since the pair of claw members can be inclined to the side opposite to the outside where the cable engages, it is easy to remove the cable from the rotary drum after winding the cable. Further, since the rotating drum is detachably provided in the apparatus main body, the winding diameter of the cable (size of figure 8) can be changed by replacing the drum with a drum having a different drum diameter.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a first embodiment of a cable winding device according to the present invention.

FIG. 2 is an explanatory view illustrating a start state of winding a cable by the cable winding device of the present invention.

FIG. 3 is an explanatory diagram illustrating a winding state of the cable when the rotating drum rotates half a turn.

FIG. 4 is an explanatory diagram illustrating a winding state of the cable when the rotating drum makes one rotation.

FIG. 5 is an explanatory view illustrating a winding state of the cable when the rotating drum makes one and a half rotations.

FIG. 6 is an explanatory view illustrating a state in which the rotary drum rotates twice and the cable is wound into a figure 8 shape.

FIG. 7 is a sectional view illustrating a second embodiment of the cable winding device of the present invention.

FIG. 8 is a schematic view illustrating the structure of a claw member of a second embodiment of the cable winding device of the present invention.

FIG. 9 is a perspective view showing a state where the cable is wound in a circular shape.

FIG. 10 is a perspective view showing a twisted state that remains when the cable is wound in a circular shape.

FIG. 11 is a perspective view showing a state in which the cable is wound in a figure 8 shape.

FIG. 12 is a perspective view showing a state in which the twist is eliminated by winding the cable in a figure 8 shape.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Cable 20 ... Cable winding device 22 ... Rotating drum 26 ... Drum shaft 28 ... Claw member 30 ... Rail 34 ... Guide roller carriage 36 ... Guide roller 52 ... Crank shaft 54 ... Crank 66 ... Slider crankcase 74 ... Crank arm 80 ... slider crank 90, 92 ... drum coupling plate 94, 96 ... opening of side plate of rotary drum 106 ... convex member of claw member 110 ... swing plate of claw member 112 ... spring spring 116 of claw member ... claw 118 of claw member ... Spring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuji Fujinaga 3-9-5 Kyobashi, Chuo-ku, Tokyo Nagai Building 9F Heavy Machinery Works Co., Ltd.

Claims (3)

[Claims] 1. A cable winding device for winding a cable in a figure 8 shape, wherein a rotating drum for winding the cable and a cable for winding on the rotating drum are provided along an axial direction of a peripheral surface of the rotating drum. It comprises a cable guide device for reciprocating motion, and a pair of claw members which are arranged at both ends where the cable on the peripheral surface of the rotating drum reciprocates and engages the cable with the outside thereof. The cable guide device reciprocates once during
A cable winding device characterized in that it winds up in the shape of a letter. 2. The cable winding device according to claim 1, wherein the pair of claw members are tiltable in a direction opposite to an outer side in which the cable is engaged. 3. The cable winding device according to claim 1, wherein the rotary drum is detachably attached to the main body of the apparatus and can be replaced with a rotary drum having a different drum diameter.