Cable take-up device

Abstract

In the conventional cable extraction method, the cable is wound by rotating the take-up reel by a driving motor, so when a large extraction force is required to extract the cable in the pipe, the cable in the pipe cannot be extracted by the driving force of the driving motor. The present application can reliably rotate the cable reel (5) by making the rubber tire (9) having an outer circumference made of elastic rubber adhere to and rotate on the outer surface of the cable reel (5), so that the rotation force of the rubber tire (5) is directly transmitted to the cable reel (5).

Description

[0001] The present application is a divisional application of the Chinese application for an international application for PCT / JP2020 / 003838, entitled "Cable Winding Device", filed by Kabushiki Kaisha Eiko, entered the Chinese national phase, the application number of the Chinese application is 202080002269.7, and the filing date is February 1, 2020. TECHNICAL FIELD

[0002] The present application relates to a cable winding device that winds a cable laid in an underground electric wire pipeline. BACKGROUND

[0003] Conventionally, a cable winding device that winds a cable laid in an underground electric wire pipeline is known.

[0004] As such a cable winding device, there is a cable extraction method that extracts such a cable that is laid in a pipeline in each manhole section and connected in each manhole (see Patent Literature 1). In the cable extraction method, an extraction vehicle 111 and a winding reel 112 are arranged near a manhole 131 on the extraction side of the cable, and a winch 113 is arranged near a manhole 133 on the opposite side of the extraction side. Then, the end portions of a cable 121 that is to be extracted and a cable 122 that opposes the cable 121 are connected in a manhole 132, and further, the cable 121 and a traction wire 106 are connected in the manhole 131 on the one end side of the extraction side, and the cable 122 and a wire 109 are connected in the manhole 133 on the opposite side of the extraction side. Then, by rotating the winding reel, the traction wire 106, the cable 121, and the cable 122 are wound, and the cables 121 and 122 laid in the pipelines 141 and 142 are extracted. Figure 17

[0005] PRIOR ART DOCUMENTS

[0006] PATENT LITERATURE

[0007] Patent Literature 1: Japanese Patent Application Publication No. 2005-86838 SUMMARY

[0008] PROBLEMS TO BE SOLVED BY THE INVENTION

[0009] However, in the conventional cable winding device (cable extraction method), since the traction wire 106, the cable 121, and the cable 122 are wound by rotating the winding reel 112 by the driving motor, when a large extraction force is required for the extraction of the cables 121 and 122 in the pipelines 141 and 142, the cables 121 and 122 in the pipelines 141 and 142 cannot be extracted by the driving force of the driving motor, and thus, there is a problem that an obstacle occurs in the cable extraction work.

[0010] ​The present application has been achieved in view of the above-described problems, and aims to provide a cable winding device that can smoothly rotate a cable drum even when a large pulling force is required for pulling up a cable laid in an underground electric wire pipe, and thus can smoothly perform a cable pulling-up work.

[0011] A solution to the above-described technical problem

[0012] To solve the above-described technical problem and achieve the above-described object, a first aspect of the present application is a cable winding device installed on a vehicle and winding a cable laid in an underground electric wire pipe, characterized by comprising: a trimming device for pulling up the cable laid in the underground electric wire pipe, having a trimming piston capable of moving in an up-and-down direction within a trimming cylinder; a steel wire B having a front end stopped at a cargo platform steel wire stopping portion on a cargo platform via a trimming device upper end left side roller of a trimming device upper end of the trimming device, and a rear end installed at a front end of the cable in the underground electric wire pipe; a rotatable turntable provided on the cargo platform; arms provided in parallel on the turntable, and rotatable in a vertical direction with a substantially joint point with the turntable as a rotation center; a drum supporting member installed on the arms, and stopping a cable drum disposed between the arms; a drum rotating device for rotating the cable drum stopped by the drum supporting member; and a steel wire A having a front end stopped at a steel wire stopping portion of an end portion of a winding portion of the cable of the cable drum, and a rear end for replacing the installed steel wire B by pulling out the cable to the outside of the underground electric wire pipe by moving the trimming piston of the trimming device operated by oil pressure upward, and rotating the cable drum by the drum rotating device to wind the steel wire A to the cable drum, and winding the cable installed on the steel wire A to the cable drum.

[0013] According to the present application, since the cable can be pulled out to the outside of the underground electric wire pipe by the trimming piston of the trimming device operated by oil pressure, the cable can be pulled up with a stronger pulling force compared to a case where a cable laid in an underground electric wire pipe is pulled up using a jack or the like, and can be disposed in a space-saving manner, and can be pulled up quietly. Thus, even when a large pulling force is required for pulling out a cable in an underground electric wire pipe, the cable drum can be smoothly rotated, and a cable pulling-out work can be smoothly performed.

[0014] A second aspect of the present application is a cable winding device according to the first aspect, wherein the steel wire B is stopped at the cargo platform steel wire stopping portion via the trimming device upper end left side roller of the trimming device upper end, a trimming device back side middle segment roller of a trimming device back side of the trimming device, a trimming device upper end right side roller of the trimming device upper end, and two steel wire stopping portions of a lower portion of a side surface of the trimming device, in this order.

[0015] The cable winding device according to the third aspect of the present application is characterized in that the cable winding device according to the first aspect further comprises a capstan rotation driving mechanism that imparts a rotation driving force to the capstan drum from the side of the capstan drum.

[0016] According to the present application, the rubber tire is brought into close contact with the outer surface of the capstan drum to rotate the capstan drum, and a rotation driving force is imparted to the capstan drum from the side of the capstan drum to rotate the capstan drum, whereby the tension of the electric cable is increased, so that the electric cable can be reliably drawn out even when the drawing out of the electric cable in the underground electric wire conduit requires a large drawing out force.

[0017] Effects of the Invention

[0018] According to the cable winding device of the present application, the capstan drum can be smoothly rotated even when the drawing out of the electric cable in the underground electric wire conduit requires a large drawing out force, so that the drawing out work of the electric cable can be smoothly performed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a view showing the use state of the cable winding device according to an embodiment of the present application.

[0020] Figure 2 is a perspective view of the cable winding device.

[0021] Figure 3 is a side view of the cable winding device.

[0022] Figure 4 is a plan view of the cable winding device.

[0023] Figure 5 is a rear view of the cable winding device.

[0024] Figure 6 shows the rotation structure of the slewing base of the cable winding device.

[0025] Figure 7 (a) of FIG. 6 is a side view of a capstan drum support member of the cable winding device. Figure 7 (b) of FIG. 6 is a view showing that a capstan shaft is about to be stopped by a capstan bearing. Figure 7 (c) of FIG. 6 is a view showing that the capstan shaft is about to be fastened by a shaft fixing bolt.

[0026] Figure 8 (a) of FIG. 7 is a view showing a trimming device of the cable winding device. Figure 8 (b) of FIG. 7 is a work view using the trimming device of the cable winding device. Figure 8 (c) of FIG. 7 is a front perspective view of a trimming device backside middle roller of the trimming device of the cable winding device.

[0027] Figure 9Fig. 1 (a) is a view showing a lever operating portion of the cable winding device. Figure 9 Fig. 1 (b) is a view showing a remote control operating portion of the cable winding device.

[0028] Figure 10 Fig. 2 (a) is a surface view of a booster device of the cable winding device. Figure 10 Fig. 2 (b) is a surface perspective view of the booster device of the cable winding device. Figure 10 Fig. 2 (c) is an exploded perspective view of a cable drum and the booster device. Figure 10 Fig. 2 (d) is a surface view of the booster device mounted on the cable drum. Figure 10 Fig. 2 (e) is a back view of the booster device mounted on the cable drum.

[0029] Figure 11 Fig. 3 is a flowchart of a cable pulling-up method using the cable winding device according to an embodiment of the present application.

[0030] Figure 12 Fig. 4 (a) is a view showing a state in which a front end of an arm of the cable winding device is lowered to a lower portion. Figure 12 Fig. 4 (b) is a view showing a state in which the front end of the arm of the cable winding device is raised to an upper portion. Figure 12 Fig. 4 (c) is a view showing a state in which the arm of the cable winding device is rotated by 180 degrees.

[0031] Figure 13 Fig. 5 (a) is a view showing a state in which a drum shaft is inserted into a drum shaft hole of the cable drum. Figure 13 Fig. 5 (b) is a view showing a state in which the drum shaft of the cable winding device according to an embodiment of the present application is about to be stopped by a drum bearing. Figure 13 Fig. 5 (c) is a view showing a state in which the drum shaft of the cable winding device is stopped by the drum bearing.

[0032] Figure 14 Fig. 6 (a) is a view showing a state in which a cable drum of a rear portion of the cable winding device is raised. Figure 14 Fig. 6 (b) is a view showing a state in which the cable drum is loaded on the cable winding device.

[0033] Figure 15 Fig. 7 (a) is a view showing a state in which the cable is just started to be wound on the cable drum by the cable winding device. Figure 15 Fig. 7 (b) is a view showing a state in which the cable is being wound on the cable drum by the cable winding device.

[0034] Figure 16 Fig. 8 is a view showing a state in which the cable drum 5 is rotated by the booster device using the cable winding device.

[0035] Figure 17is a drawing showing a conventional cable extraction method. DETAILED DESCRIPTION

[0036] Hereinafter, a cable winding device of an embodiment of the present application will be described. Here, Figure 1 is a drawing showing a use state of the cable winding device of an embodiment of the present application, Figure 2 is a perspective view of the cable winding device, Figure 3 is a side view of the cable winding device, Figure 4 is a plan view of the cable winding device, Figure 5 is a rear view of the cable winding device.

[0037] The cable winding device 1 is mounted on a vehicle, and winds a cable (electric wire) 3 laid in an underground electric wire conduit 2 (refer to Figure 1 ). Specifically, the cable winding device 1 is used to extract the cable 3 laid in the underground electric wire conduit 2 buried in the ground from a manhole 4, and winds the cable 3 by a cable drum 5 provided in the cable winding device 1.

[0038] As shown in Figure 2 , the cable winding device 1 has a slewing base 6, an arm 7, a drum support member 8, a rubber tire 9, a rubber tire fixing shaft 10, an oil hydraulic motor 11 (rubber tire rotation driving mechanism), an outrigger 12, an arm cylinder 13a, a trimming device 14, a lever operation portion 15, and a remote control operation portion 16. In addition, in the present embodiment, although the outrigger 12 is provided, it is not limited thereto, and the cable winding device 1 can be one in which the outrigger 12 is not provided.

[0039] The slewing base 6 is provided on a cargo bed 1a of the cable winding device 1, and is rotatable around a substantially horizontal direction. Specifically, the slewing base 6 is provided at a rear of the cargo bed 1a of the cable winding device 1, and is rotationally driven by a motor rotation shaft of a slewing base oil hydraulic motor 6a to rotate a motor rotation gear 6b, and then the motor rotation gear 6b can rotate the slewing base 6 around the substantially horizontal direction by 360 degrees via a slewing base gear 6c (refer to Figure 6 ). In addition, on an upper portion of the slewing base 6, a fixing stand 17 in a substantially triangular shape is fixed. Here, Figure 6 shows a rotation structure of the slewing base of the cable winding device of an embodiment of the present application.

[0040] Two arms 7 are provided in parallel on the turntable 6 so as to be able to rotate in the vertical direction with the point of combination C of the turntable 6 as the center of rotation. Specifically, two arms 7 are provided in parallel on the turntable 6 at intervals of approximately the same width as the lateral width of the cargo bed la, in combination with the left and right front ends of the turntable 6. Then, the arms 7 are moved by the arm pistons 13b provided so as to protrude from the arm cylinders 13a, so that the arms 7 are rotated in the vertical direction with the point of combination C of the turntable 6 as the center of rotation. In the present embodiment, the arms 7 are rotated with the point of combination C of the turntable 6 as the center of rotation, but are not limited thereto, and can be rotated with the vicinity (approximately the point of combination) of the point of combination C of the turntable 6 as the center of rotation. In the present embodiment, two arms 7 are provided in parallel on the turntable 6, but are not limited thereto, and two or more arms 7 can be provided in parallel on the turntable 6.

[0041] The reel support member 8 is installed on the arm 7 (the outer side surface) to retain the cable reel 5 disposed between the two arms 7. Specifically, the reel support member 8 is substantially quadrangular, and is detachably installed to the arm 7 by the arm fixing pin 18 (refer to FIG. 6). Figure 7 Further, the reel support member 8 forms the reel shaft bearing 20 that retains the two reel shafts 19 in the upper and lower sides of the surface, and forms the reel support member fixing position adjustment hole 21 that can set the fixing position of the reel support member 8 to the arm 7 in the inside of the substantially quadrangular shape. Further, after the reel shaft 19 is retained in the reel shaft bearing 20, the shaft fixing bolt 22 is inserted to the reel shaft fixing bolt insertion hole 19a of the reel shaft 19 via the reel shaft bearing fixing bolt insertion hole 31a formed in the reel shaft bearing 20, and the reel shaft 19 is fixed by the shaft fixing bolt 22, so that the reel shaft 19 can be firmly installed to the reel support member 8. Here, Figure 7 (a) of FIG. 6 is a side view of the reel support member of the cable winding device according to the embodiment of the present application, Figure 7 (b) of FIG. 6 is a view showing that the reel shaft is about to be retained by the reel shaft bearing, Figure 7 (c) of FIG. 6 is a view showing that the reel shaft is about to be fixed by the shaft fixing bolt.

[0042] The rubber tire 9 is circular in shape, with its outer circumference made of butadiene rubber. By tightly binding and rotating this outer circumference to the outer surface of the cable reel 5, which is secured to the reel support member 8, the cable reel 5 can be rotated. In this embodiment, a car tire is used as the rubber tire 9. However, while butadiene rubber is used for the outer circumference in this embodiment, it is not limited to this; elastic rubbers such as isoprene rubber or butyl rubber can also be used. Furthermore, while a car tire with a hollow outer circumference is used in this embodiment, it is not limited to this; tires with a non-hollow outer circumference can also be used. Two of these rubber tires 9 are provided and movably coupled to a rubber tire fixing shaft 10, which serves as a central axis, and fixed in place. In this embodiment, the rubber tire 9 is described as being movable along the longitudinal direction of the rubber tire fixing shaft 10; however, it is not limited to this, and the rubber tire 9 can also be fixed at a fixed position on the rubber tire fixing shaft 10 and cannot move along the longitudinal direction of the rubber tire fixing shaft 10. Furthermore, although two rubber tires 9 are provided in this embodiment, multiple rubber tires 9, such as three or four, can also be provided. The rubber tire fixing shaft 10 can be connected to the hydraulic motor 11 (see reference). Figure 4 The rotational driving force of the rubber tire 9 rotates the central axis along its length. Furthermore, the rotation of the rubber tire fixing shaft 10 causes the rubber tire 9 to rotate, and the rotational force of the rubber tire 9 causes the cable reel 5, which is in close contact with the outer surface of the rubber tire 9, to rotate. Additionally, the hydraulic motor 11 can rotate the rubber tire fixing shaft 10 in both clockwise and counterclockwise directions. Here, the rubber tire 9, the rubber tire fixing shaft 10, and the hydraulic motor 11 constitute a reel rotating device that rotates the cable reel 5, which is locked to the reel support member 8. However, this is not a limitation; any device that rotates the cable reel 5 locked to the reel support member 8 can be constructed using other structures.

[0043] The extension bracket 12 extends downwards via the extension bracket cylinder 12a to support the rear of the cable winding device 1. Thus, even if the cable reel 5 placed on the platform 1a of the cable winding device 1 is rotated, the cable winding device 1 can be kept in a stable state without moving back and forth.

[0044] The cutting device 14 is used to pull up the cable 3 laid in the underground electrical conduit 2 (see reference). Figure 8). That is, at the time of just starting to pull up the cable 3 laid in the underground electric wire duct 2, a large pulling force is required due to the cable 3 being long in the underground electric wire duct 2 and acting with a frictional force, and therefore the cable 3 is pulled up using the edge cutting device 14. The edge cutting device 14 is able to stretch and contract in the up-and-down direction by moving in the up-and-down direction by the edge cutting piston 14b in the edge cutting cylinder 14a. In order to pull up the cable 3 from the underground electric wire duct 2 using the edge cutting device 14, first, the leading end of the steel wire 24a ("steel wire A") is caught in the cable reel 5, and then, while the leading end of the steel wire 24b ("steel wire B") is caught in the edge cutting device 14, the other end of the steel wire 24b is attached to the leading end of the cable 3 in the underground electric wire duct 2. Specifically, the leading end of the steel wire 24a is caught in the steel wire catching portion (omitted from the drawing) of the cable reel 5 (the end portion of the winding portion of the cable 3), and the leading end of the steel wire 24b is attached to the leading end of the cable 3 in the underground electric wire duct 2 via the guide rollers 25a, 25b, 25c, and the edge cutting device upper end left side roller 25d (refer to (a) of FIG. 10) on the upper end of the edge cutting device 14, the edge cutting device back side middle portion roller 25e (refer to (c) of FIG. 10) on the back side of the edge cutting device 14, the edge cutting device upper end right side roller 25f (refer to (b) of FIG. 10) on the upper end of the edge cutting device 14, and the like. Figure 8 Figure 8 Figure 8 ​​the other end of the wire 24b is attached to the front end of the cable 3 in the underground electric line pipe 2. Here, at the two wire stopping portions 14cu, 14cd in the side lower portions of the trimming device 14, the wire 24b is stopped in a figure-8 shape between the two wire stopping portions 14cu, 14cd by the following: rear side of the wire stopping portion 14cu → between the two wire stopping portions 14cu, 14cd → front side of the wire stopping portion 14cd → lower side of the wire stopping portion 14cd → between the two wire stopping portions 14cu, 14cd → front side of the wire stopping portion 14cu → upper side of the wire stopping portion 14cu → between the two wire stopping portions 14cu, 14cd → rear side of the wire stopping portion 14cu. Then, with the front end portion of the wire 24b to which the cable 3 is attached stopped at the pallet wire stopping portion 16e, the cable 3 attached to the rear end of the wire 24b is pulled out of the underground electric line pipe 2 by moving the trimming piston 14b in the trimming cylinder 14a upward. The trimming piston 14b can pull the cable 3 out of the underground electric line pipe 2 by oil pressure and with a pulling force of 8 tons, so it can pull the cable 3 up with a stronger pulling force than when a jack or the like is used to pull the cable 3 laid in the underground electric line pipe 2 up, it can be arranged in a space-saving manner, and it can pull the cable 3 up quietly. Also, by moving the trimming piston 14b in the trimming cylinder 14a of the trimming device 14 upward, if the cable 3 is pulled up 6.0 m (3.0 m x 2 (the amount of pulling up of the two trimming pistons 14b)), the trimming piston 14b in the trimming cylinder 14a of the trimming device 14 is moved downward, the wire 24b attached to the front end of the cable 3 in the underground electric line pipe 2 is detached from the cable 3, and the wire 24b is attached to the cable 3 6.0 m behind the position of detachment. Then, by moving the trimming piston 14b upward again, the cable 3 attached to the rear end of the wire 24b is pulled out of the underground electric line pipe 2. This operation is performed every 6.0 m of the wire 24b, and the operation is repeated until the cable 3 attached to the rear end of the wire 24b is pulled out to the length of the manhole 4. Then, when the cable 3 attached to the rear end of the wire 24b comes out of the manhole 4, the rear end of the wire 24a is used instead of the rear end of the wire 24b for attaching the cable 3. Then, the cable reel 5 is rotated by the rubber tire 9, so the wire 24a is wound to the cable reel 5, and the cable 3 attached to the wire 24a can be wound to the cable reel 5. Thus, since the cable 3 laid in the underground electric line pipe 2 is pulled up with a sufficient pulling force by the trimming device 14 at the beginning of pulling the cable 3 laid in the underground electric line pipe 2 up, the cable 3 can be smoothly pulled out. Here, Figure 8(a) is a diagram showing a trimming device of a cable winding device of an embodiment of the present application, Figure 8 (b) is a work diagram using the trimming device of the cable winding device, Figure 8 (c) is a front perspective view showing a trimming device backside middle roller of the trimming device of the cable winding device.

[0045] The lever operation section 15 is provided on the right rear side of the cable winding device 1, has a trimming device operation lever 15a, an arm operation lever 15b, a reel operation lever 15c, a turntable operation lever 15d, and by the trimming device operation lever 15a, up and down movement operation of the trimming piston 14b of the trimming device 14 is possible, by the arm operation lever, up and down movement operation of the arm piston 13b of the arm 7 is possible, by the reel operation lever 15c, forward and reverse rotation operation of the rubber tire 9 of the cable reel 5 is possible, and by the turntable operation lever 15d, rotation operation of the right and left rotation of the turntable 6 is possible (refer to Figure 9 (a)). Further, the remote control operation section 16 is a detachable operation remote controller, is provided in a remote controller box on the right rear side of the cable winding device 1, has a trimming device operation switch 16a, an arm operation switch 16b, a reel operation switch 16c, a turntable operation switch 16d, and by using each switch, the same operation as the lever operation section 15 is possible (refer to Figure 9 (b)). Here, Figure 9 (a) is a diagram showing a lever operation section of a cable winding device of an embodiment of the present application, Figure 9 (b) is a diagram showing a remote controller operation section of the cable winding device. Further, the outrigger operation section 23 is provided on the left rear side of the cable winding device 1, and by an operation lever, up and down movement operation of the outrigger 12 is possible (omitted diagram (detailed diagram)).

[0046] Next, the booster device 26 of the cable winding device 1 is described. Here, Figure 10 (a) is a surface diagram of a booster device of a cable winding device of an embodiment of the present application, Figure 10 (b) is a surface perspective view of the booster device of the cable winding device, Figure 10 (c) is an exploded perspective view of a cable reel and a booster device, Figure 10 (d) is a surface diagram of a booster device mounted on a cable reel, Figure 10Fig. 2 is a back view of the cable reel with the booster device mounted. The booster device 26 is used to enhance the pulling force of the cable 3. That is, since the length of the cable 3 in the underground electric wire conduit 2 is about 300 m or so, and when the cable 3 in the underground electric wire conduit 2 is pulled up, the frictional force between the underground electric wire conduit 2 and the cable 3 is also generated, so there is a case where a very large pulling force is required in order to pull up the cable 3. At this time, the booster device 26 is used to pull up the cable 3.

[0047] The booster device 26 (reel rotation driving mechanism) has an oil pressure motor 26a, a motor planetary gear 26b, and a booster internal gear 26c, and imparts a rotation driving force to the cable reel 5 from the side surface of the cable reel 5. After the reel support member 8 and the arm fixing pin 18 are collectively removed from the arm 7, the reel shaft 19 is inserted into the space in the upper portion of the reel shaft placement portion 29 of the booster device 26, and then the arm fixing pin 18 is inserted into the booster device fixing hole 27 of the booster device 26, whereby the booster device 26 is mounted to the arm 7. Further, when the booster device 26 is mounted to the arm 7, the booster reel locking portion 26d of the booster device 26 is inserted into the space formed by the reel cross portion 5a of the cable reel 5 on the outer peripheral side of the reel shaft hole 28 (refer to Fig. 2 (a)) of the cable reel 5. Thus, in a state in which the booster reel locking portion 26d of the booster device 26 is engaged with the reel cross portion 5a of the cable reel 5, the booster device 26 is mounted to the cable reel 5. Further, if the booster reel locking portion 26d is rotated, the reel cross portion 5a is pushed in the rotation direction by the booster reel locking portion 26d, whereby the cable reel 5 can be rotated. Specifically, in this booster device 26, the motor planetary gear 26b combined with the motor shaft of the oil pressure motor 26a is rotated by driving the oil pressure motor 26a, and the booster internal gear 26c is rotated by the rotation of the motor planetary gear 26b. Further, the reel cross portion 5a is pushed in the rotation direction by the booster reel locking portion 26d by the rotation of the booster internal gear 26c and the rotation of the booster reel locking portion 26d, whereby the cable reel 5 can be rotated. Figure 13

[0048] Next, a method for pulling up the cable (electric wire) 3 using the cable take-up device 1 according to the present embodiment will be described with reference to Figs. 6A to 6D. Figures 11-16 Next, a method for pulling up the cable (electric wire) 3 using the cable take-up device 1 according to the present embodiment will be described with reference to Figs. 6A to 6D. Figure 11 Next, a method for pulling up the cable (electric wire) 3 using the cable take-up device 1 according to the present embodiment will be described with reference to Figs. 6A to 6D.

[0049] In order to take up the cable 3 using the cable take-up device 1, the cable take-up device 1 is driven to the take-up site of the cable (electric wire) 3. At this time, the front end of the arm 7 is lowered downward (refer to Fig. 6A) while the cable take-up device 1 is driven, that is, until the cable take-up device 1 reaches the take-up site of the cable 3. Then, the cable 3 is pulled up by the cable take-up device 1 (refer to Fig. 6B). At this time, the cable 3 is pulled up by the cable take-up device 1 while the front end of the arm 7 is lowered downward (refer to Fig. 6C). Then, the cable 3 is pulled up by the cable take-up device 1 while the front end of the arm 7 is lowered downward (refer to Fig. 6D). Thus, the cable 3 is pulled up by the cable take-up device 1. Figure 12 ​(a)). The cable winding device 1 can lower the front end of the arm 7 downward by causing the arm piston 13b to protrude outward from the arm cylinder 13a. Furthermore, the processing S1 is performed after the cable winding device 1 reaches the winding point of the cable 3. Here, Figure 12 (a) is a diagram showing the state in which the front end of the arm on the cable winding device according to an embodiment of the present invention is lowered downwards.

[0050] In S1, a cable reel loading process is performed. In this cable reel loading process, the cable reel 5 is loaded onto the platform 1a of the cable winding device 1. Specifically, while operating the arm operating lever 15b (arm operating switch 16b) and the rotary table operating lever 15d (rotary table operating switch 16d), the cable reel 5 is loaded onto the platform 1a of the cable winding device 1 according to the following steps.

[0051] (1) The front end of the arm 7 of the platform 1a of the cable winding device 1, which has been lowered to the top, is lifted upwards. Figure 12 In state (b), the rotary table 6 is rotated 180 degrees about the horizontal direction (refer to (c) of 12). By moving the arm piston 13b inside the arm cylinder 13a in the direction inside the arm cylinder 13a, the front end of the arm 7 is lifted. When the front end of the arm 7 is lifted to the upper part, the extension support cylinder 12a of the extension support 12 extends downward to support the rear of the cable winding device 1. Thus, the cable winding device 1 can be in a stable state without moving back and forth. Here, Figure 12 Figure (b) is a diagram showing the state in which the front end of the arm of the cable winding device according to an embodiment of the present invention is raised to the upper part. Figure 12 (c) is a diagram showing the state in which the arm of the cable winding device is rotated 180 degrees.

[0052] (2) Next, the reel shaft 19 is inserted into the reel shaft hole 28, which is open at the center of the cable reel 5 (see reference). Figure 13 (a) Here, when the diameter of the reel shaft 19 is smaller than the diameter of the reel shaft hole 28, after inserting the reel shaft 19 into the reel shaft hole 28, reel spacers (not shown) and anti-slip rings are installed from both ends of the reel shaft 19, thereby eliminating the gap between the reel shaft 19 and the reel shaft hole 28, and enabling the reel shaft 19 to be stably installed in the reel shaft hole 28. In addition, in this embodiment, the reel shaft 19 is inserted into the reel shaft hole 28 of the cable reel 5 after the front end of the arm 7 of the cable winding device 1 is rotated 180 degrees about the approximately horizontal direction. However, it is not limited to this. It is also possible to insert the reel shaft 19 into the reel shaft hole 28 of the cable reel 5 and then rotate the front end of the arm 7 of the cable winding device 1 about the approximately horizontal direction by 180 degrees.

[0053] (3) After rotating 180 degrees, the front end of arm 7, which is now facing backward, lowers downward (refer to...).Figure 13 of (b). Here, the front end of the arm 7 is lowered downward in such a manner that the position of the reel shaft hole 28 of the cable reel 5 becomes the position of the reel bearing 20 of the reel support member 8. Further, the reel support member 8 mounted to the arm 7 uses a reel support member 8 that matches the size of the cable reel 5. Here, Figure 13 of (b) is a view showing the state in which the reel shaft of the cable take-up device of one embodiment of the present application is about to be stopped by the reel bearing.

[0054] (4) After the front end of the arm 7 is lowered downward, the reel shaft 19 inserted into the reel shaft hole 28 is stopped by the reel support member 8 (refer to Figure 13 of (c) ). Thus, the cable reel 5 is mounted between the two arms 7. Specifically, after the reel shaft 19 is stopped by the reel bearing 20 of the reel support member 8, the shaft fixing bolt 22 is inserted into the reel shaft fixing bolt insertion hole 19a of the reel shaft 19 via the reel bearing fixing bolt insertion hole 31a formed in the reel bearing 20 (refer to Figure 7 of (c) ). Thus, the cable reel 5 is mounted between the two arms 7. Here, Figure 13 of (c) is a view showing the state in which the reel shaft of the cable take-up device of one embodiment of the present application is stopped by the reel bearing.

[0055] (5) After the cable reel 5 is mounted between the two arms 7, the reel shaft 19 stopped by the reel support member 8 (including the cable reel 5) is moved to the deck la of the cable take-up device 1. Specifically, the front end of the arm 7 is raised until the lower end of the cable reel 5 mounted between the two arms 7 is higher than the height of the deck la (refer to Figure 14 of (a) ), and then, after the turntable 6 is rotated by 180 degrees, the front end of the arm 7 is lowered so that the cable reel 5 mounted between the two arms 7 is loaded on the deck la (refer to Figure 14 of (b) ). Thus, the cable reel 5 is loaded on the deck la of the cable take-up device 1. Then, S2 is entered.

[0056] In S2, a cable stopping process is performed. In the cable stopping process, the front end of the steel wire 24a of the cable 3 mounted is stopped by the cable reel 5. Specifically, first, the front end of the steel wire 24a is stopped by the cable reel 5, and then, while the front end of the steel wire 24b is stopped by the trimming device 14, the other end of the steel wire 24b is mounted to the front end of the cable 3 in the underground electric wire conduit 2. That is, the front end of the steel wire 24a is stopped by the steel wire stopping portion (omitted from the drawing) of the cable reel 5 (the end portion of the winding portion of the cable 3), and then, the front end of the steel wire 24b is passed through the guide rollers 25a, 25b, 25c, and the trimming device upper end left side roller 25d of the upper end of the trimming device 14 (refer to Figure 8(a) of FIG. 10, the inside of the trimming device 14, the trimming device back side middle roller 25e (refer to Figure 8 (c) of FIG. 10, the upper end of the trimming device 14, the trimming device upper end right side roller 25f (refer to Figure 8 (a) of FIG. 10, the lower part of the side of the trimming device 14, the two steel wire stopping portions 14cu, 14cd, while stopping the pallet steel wire stopping portion 16e on the pallet 1a in the vicinity of the trimming device 14, the other end of the steel wire 24b is installed to the front end of the cable 3 inside the underground electric wire pipe 2. Also, when the cable 3 is pulled out 6.0 m (3.0 m x 2 (the amount of pull-out of the two trimming pistons 14b)) by the upward movement of the trimming piston 14b inside the trimming cylinder 14a of the trimming device 14, the trimming piston 14b inside the trimming cylinder 14a of the trimming device 14 is moved to the lower part, the steel wire 24b installed to the front end of the cable 3 inside the underground electric wire pipe 2 is detached from the cable 3, and the steel wire 24b is installed to the cable 3 6.0 m behind the detached position. Then, by moving the trimming piston 14b to the upper part again, the cable 3 installed to the rear end of the steel wire 24b is pulled out from inside the underground electric wire pipe 2. This operation is performed every 6.0 m of the steel wire 24b, and this operation is repeated until the cable 3 installed to the rear end of the steel wire 24b is pulled out to the length outside the manhole 4. Then, when the cable 3 installed to the rear end of the steel wire 24b comes out of the manhole 4, the rear end of the steel wire 24a is replaced with the cable 3 (refer to Figure 8 (b) of FIG. 10). Then, S3 is entered.

[0057] In S3, the cable winding procedure is performed. In the cable winding procedure, the cable 3 (steel wire 24a) is wound to the cable drum 5 by rotating the rubber tire 9 in the positive direction (clockwise). Specifically, by performing the "positive direction" operation by the drum operation lever 15c (or the drum operation switch 16c), the rubber tire 9 is rotated in the positive direction (clockwise), and the cable 3 is wound to the cable drum 5. At this time, by operating the turntable operation lever 15d (or the turntable operation switch 16d) (refer to Figure 9 ), the cable 3 is wound to the cable drum 5 in the lateral direction from the end part without overlapping as much as possible (refer to Figure 15 ). Here, Figure 15 (a) of FIG. 11 is a view showing the start of winding the cable to the cable drum by the cable winding device, Figure 15 (b) of FIG. 11 is a view showing the middle of winding the cable to the cable drum by the cable winding device.

[0058] Further, in the cable winding procedure, in the case where a very large pulling force is required to pull up the cable 3, the cable 3 is wound to the cable drum 5 using the booster device 26 (refer to Figure 10 、 Figure 16). After the reel support member 8 is removed from the arm 7 together with the arm fixing pin 18, the reel shaft 19 is inserted into the space on the upper portion of the reel shaft placement portion 29 of the booster device 26, and then the arm fixing pin 18 is inserted into the booster device fixing hole 27 of the booster device 26, whereby the booster device 26 is mounted to the arm 7. Further, if the booster device 26 is mounted to the arm 7, the booster cylinder locking portion 26d of the booster device 26 becomes a state of being fitted into the reel cross portion 5a of the cable reel 5 (refer to Figure 10 ). Thus, when the booster reel locking portion 26d is rotated, the reel cross portion 5a is pushed in the rotation direction by the booster reel locking portion 26d, whereby the cable reel 5 can be rotated. Then, the cable 3 is wound to the cable reel 5 by driving the oil hydraulic motor 26a while using the rubber tire 9 and the booster device 26 to rotate the cable reel 5 (refer to Figure 16 ). Here, Figure 16 is a view showing a state in which the cable reel 5 is rotated by the booster device using the cable winding device in the embodiment of the present application. Then, S4 is entered.

[0059] In S4, the cable reel separation process is performed. In the cable reel separation process, the cable reel 5 is lowered from the deck la of the cable winding device 1, and the cable reel 5 is separated from the cable winding device 1. Specifically, while the arm operating lever 15b (arm operating switch 16b) and the turntable operating lever 15d (turntable operating switch 16d) are operated, the cable reel 5 is lowered from the deck la of the cable winding device 1, and the cable reel 5 is separated from the cable winding device 1 in the following steps.

[0060] (1) If the cable 3 of a predetermined length is wound to the cable reel 5, it is cut at the position of the cable 3 that is not wound to the cable reel 5, and the cable reel 5 loaded on the upper portion of the deck la of the cable winding device 1 is lowered to the ground. Specifically, the front end of the arm 7 is raised, the cable reel 5 mounted between the two arms 7 is separated from the deck la, and then the turntable 6 is rotated by 180 degrees, whereby the cable reel 5 mounted between the two arms 7 is moved to the rear of the cable winding device 1. Then, the front end of the arm 7 is lowered, and the cable reel 5 mounted between the two arms 7 is lowered to the ground.

[0061] (2) After the front end of the arm 7 is lowered to separate the reel shaft 19 from the reel support member 8, the reel shaft 19 is extracted from the reel shaft hole 28, whereby the cable reel 5 is separated from the cable winding device 1. Then, S5 is entered.

[0062] In S5, it is determined whether the work of pulling up the cable 3 in the underground electric wire conduit 2 to the ground is completed. That is, it is determined whether the cable 3 in the underground electric wire conduit 2 of this time plan is pulled up to the ground. Then, in the case where it is determined "No" in S5, the process goes to S1.

[0063] In S1, the cable reel loading process is implemented. In the cable reel loading process, as described above, the cable reel 5 is loaded on the pallet la of the cable winding device 1. Then, in S2, the cable locking process is implemented. In the cable locking process, the steel wire 24a is installed to the cable 3 cut by the cable reel separation process (S4), and then the front end of the steel wire 24a is locked to the cable reel 5. Here, since the cable 3 has reached outside the manhole 4 in this state, it is not necessary to install the steel wire 24b to the cable 3. Then, the process of S5→S1→S2→S3→S4 is repeatedly implemented until it is determined "Yes" in S5. Then, by determining "Yes" in S5, the cable 3 pulling up method ends.

[0064] As described above, by making the rubber tire 9 having the outer circumference composed of the butadiene rubber adhere to the outer surface of the cable reel 5 and rotate, it is possible to directly transmit the rotation force of the rubber tire 9 to the cable reel 5, and thus it is possible to reliably rotate the cable reel 5.

[0065] Further, it should be considered that the embodiments disclosed this time are merely illustrative in all respects and are not restrictive. Further, the scope of the present application is not shown by the above description, but is shown by the recitation of the claims, and includes all modifications within the meaning and the scope equivalent to the claims.

[0066] BRIEF DESCRIPTION OF DRAWINGS

[0067] 1 cable winding device

[0068] 1a pallet

[0069] 2 underground electric wire conduit

[0070] 3 cable

[0071] 4 manhole

[0072] 5 cable reel

[0073] 5a reel cross section

[0074] 6 slewing table

[0075] 6a slewing table hydraulic motor

[0076] 6b motor rotation gear

[0077] 6c slewing table gear

[0078] 7 arm

[0079] 8 reel support member

[0080] 9 rubber tire

[0081] 10 rubber tire fixing shaft

[0082] 11 oil pressure motor

[0083] 12 outrigger

[0084] 13a arm cylinder

[0085] 13b arm piston

[0086] 14 trimming device

[0087] 14a trimming cylinder

[0088] 14b trimming piston

[0089] 14cu steel wire stopper

[0090] 14cd steel wire stopper

[0091] 15 lever operating portion

[0092] 16 remote control operating portion

[0093] 17 fixing frame

[0094] 18 arm fixing pin

[0095] 19 reel shaft

[0096] 19a reel shaft fixing bolt insertion hole

[0097] 20 reel bearing

[0098] 21 reel support member fixing position adjusting hole

[0099] 22 shaft fixing bolt

[0100] 23 outrigger operating portion

[0101] 24a steel wire

[0102] 24b steel wire

[0103] 25a guide roller

[0104] 25b guide roller

[0105] 25c guide roller

[0106] 25d trimming device upper end left side roller

[0107] 25e trimming device back side middle section roller

[0108] 25f right side roller on upper end of edging device

[0109] 26 power assist device

[0110] 26a oil pressure motor

[0111] 26b motor planetary gear

[0112] 26c power assist device internal gear

[0113] 26d power assist device reel locking portion

[0114] 27 power assist device fixing hole

[0115] 28 reel shaft hole

[0116] 29 reel shaft placement portion

[0117] 31a reel shaft bearing fixing bolt insertion hole

Claims

1. A cable winding device which is installed on a vehicle and winds a cable laid in an underground electric wire pipe, characterized by, Possessing: a trimming device for pulling up a cable laid in an underground electric wire pipe, having a trimming piston capable of moving in an up-and-down direction within a trimming cylinder; a steel wire B, a leading end of which is caught in a pallet steel wire catching portion on a pallet via a trimming device upper end left side roller of a trimming device upper end which moves in an up-and-down direction using the trimming piston, and a trailing end of which is installed at a leading end of a cable in an underground electric wire pipe; a rotatable turntable provided on the pallet; arms, two of which are provided in parallel on the turntable, capable of rotating in a vertical direction with a joint point with the turntable as a rotation center; a reel supporting member installed to the arms, catching a cable reel arranged between the two arms; a reel rotating device which rotates the cable reel caught in the reel supporting member; a steel wire A, a leading end of which is caught in a steel wire catching portion at an end of a winding portion of a cable of the cable reel, by moving the trimming piston of the trimming device operated using oil pressure upward, the cable is pulled out to the outside of the underground electric wire pipe, then, the trailing end of the steel wire A is installed at the leading end of the cable instead of the steel wire B installed, the cable reel is rotated by the reel rotating device, thereby the steel wire A is wound to the cable reel, and the cable installed to the steel wire A is wound to the cable reel.

2. The cable winding device according to claim 1, wherein the steel wire B is caught in the pallet steel wire catching portion on the pallet via the trimming device upper end left side roller of the trimming device upper end, a trimming device back side middle section roller of a trimming device back side of the trimming device, a trimming device upper end right side roller of the trimming device upper end, and two of the steel wire catching portions of a side lower portion of the trimming device in this order.

3. The cable winding device according to claim 1, further comprising a reel rotating drive mechanism which imparts a rotation drive force to the cable reel from a side of the cable reel. ​

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