Cable pulling pulley mounting device and cable pulling pulley mounting method

Abstract

The present invention provides a cable pulling pulley mounting device that allows for easy and safe attachment of cable pulling pulleys to existing communication cables located at high altitudes from the ground. [Solution] The cable pulling pulley mounting device 1 comprises an operating rod 10 that is extendable and retractable in the longitudinal direction, a holding part 20 provided at the longitudinal end of the operating rod 10 and capable of holding a cable pulling pulley to be attached to an existing communication cable or the like at a high place, and a control device 30 provided on the operating rod 10 and controlling the extension and retraction of the operating rod 10.

Description

【Technical Field】 【0001】 The present disclosure relates to an extension cable hanger mounting device and an extension cable hanger mounting method. 【Background Art】 【0002】 As an outdoor cable extension construction method, a method is used in which a plurality of extension cable hangers are attached to an existing communication cable and then a new communication cable is drawn into these extension cable hangers. In this method, an operator climbs a utility pole to attach an extension cable hanger to an existing communication cable, but since working at height places a burden on the operator, a method of attaching the extension cable hanger from the ground has been considered. 【0003】 Patent Document 1 discloses a method in which a pole fitting with an extension cable hanger attached to the tip of an operating rod is lifted to attach the extension cable hanger to an existing communication cable. 【Prior Art Documents】 【Patent Documents】 【0004】 【Patent Document 1】 Japanese Utility Model Publication No. 60-96913 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0005】 However, in the method of Patent Document 1, since the operator manually lifts the pole fitting with the extension cable hanger, the bending moment caused by the weight of the extension cable hanger, which is a heavy object, acts on the operator's hand, imposing a burden on the operator. 【0006】 An object of the present disclosure is to provide an extension cable hanger mounting device and an extension cable hanger mounting method that can easily and safely attach an extension cable hanger to an existing communication cable at a high location from the ground. 【Means for Solving the Problems】 【0007】 To solve the above problems, a wire pulling pulley mounting device according to one aspect of the present disclosure is provided. A retractable operating rod in the longitudinal direction, A holding portion is provided at the longitudinal end of the operating rod and is capable of holding a wire pulling pulley that is attached to an object at a high place, A control device provided on the operating rod for controlling the extension and retraction of the operating rod, It is equipped with. [Effects of the Invention] 【0008】 According to this disclosure, it is possible to provide a cable pulling device and a cable pulling method that enable the cable pulling device to be easily and safely attached to an existing communication cable located at a high altitude from the ground. [Brief explanation of the drawing] 【0009】 [Figure 1] This diagram shows the configuration of the wire pulling pulley mounting device 1 of this embodiment. [Figure 2] This is a detailed diagram showing the configuration of the wire pulling pulley mounting device 1 of this embodiment, with the operating rod 10 extended. [Figure 3] This is a detailed diagram showing the configuration of the wire pulling pulley mounting device 1 of this embodiment, with the operating rod 10 retracted. [Figure 4] This flowchart shows a method for attaching a wire pulley using the wire pulley attachment device 1 according to this embodiment. [Figure 5] This diagram shows the process of attaching a cable pulling pulley to an existing communication cable using the cable pulling pulley attachment device 1 according to this embodiment. [Figure 6] This figure shows a modified example of the wire pulling pulley mounting device 1 of this embodiment. [Modes for carrying out the invention] 【0010】 The embodiments of this disclosure will be described below with reference to the drawings. In all the drawings illustrating the embodiments, common components are denoted by the same reference numerals, and repeated descriptions are omitted. The following embodiments are not intended to unduly limit the content of this disclosure as described in the claims. Not all components shown in the embodiments are necessarily essential components of this disclosure. Also, each drawing is a schematic diagram and is not necessarily a strict illustration. 【0011】 Furthermore, in the following explanations, when describing similar elements without distinction, a reference code (or a common code among reference codes) may be used, and when describing similar elements with distinction, the element's identification number (or reference code) may be used. 【0012】 <Overview> The cable pulling pulley mounting device according to this embodiment is a device for attaching cable pulling pulleys, used for extending newly installed communication cables between outdoor utility poles, one by one to existing communication cables already installed at a high altitude between the poles. The cable pulling pulley is a metal pulley equipped with a hook portion that can be hooked onto the existing communication cable, and is capable of pulling in the new communication cable while suspended from the existing communication cable by the hook portion. The cable pulling pulley mounting device has an operating rod to which the cable pulling pulley can be attached, and by electrically extending and retracting the operating rod, the cable pulling pulley is lifted up to the existing communication cable at a high altitude and attached. This makes it possible to easily and safely attach the cable pulling pulley to the existing communication cable from the ground. 【0013】 In this embodiment, "high place" is not limited to places 2 meters or more above the ground, but includes places that are too high for a worker on the ground to reach even if they stretch their arms. Also in this embodiment, "tip" refers to one end in the longitudinal direction, and "base" refers to the other end in the longitudinal direction. 【0014】 <Wire laying pulley mounting device> The configuration of the extension wire spool mounting device 1 according to this embodiment will be described. FIG. 1 is a diagram showing the configuration of the extension wire spool mounting device 1 of this embodiment. FIG. 2 is a detailed diagram showing the configuration of the extension wire spool mounting device 1 of this embodiment, in which the operating rod 10 is extended. FIG. 3 is a detailed diagram showing the configuration of the extension wire spool mounting device 1 of this embodiment, in which the operating rod 10 is retracted. 【0015】 As shown in FIG. 1, the extension wire spool mounting device 1 includes an operating rod 10, a holding portion 20, and a control device 30. 【0016】 The operating rod 10 extends vertically to the ground, and the base end in its longitudinal direction serves as a handle for the operator in a state where it is placed on the ground. The control device 30 is attached between the base end and the tip end in the longitudinal direction of the operating rod 10. The holding portion 20 is connected to the tip end in the longitudinal direction of the operating rod 10, and an extension wire spool is attached to this holding portion 20. The operating rod 10 is telescopically extendable in its longitudinal direction. The operating rod 10 includes first to fifth cylindrical members 11 to 15. 【0017】 The first to fifth cylindrical members 11 to 15 are all arranged concentrically (with a common central axis) when viewed in the cross-sectional direction, and extend in order from the base end side to the tip end side in the longitudinal direction of the operating rod 10. Specifically, the first cylindrical member 11 is located on the most base end side of the operating rod 10. The winch mechanism 31 of the control device 30 is provided on the side surface of the first cylindrical member 11. The second cylindrical member 12 is located on the tip end side of the first cylindrical member 11. The diameter of the second cylindrical member 12 is smaller than the diameter of the first cylindrical member 11. The second cylindrical member 12 is housed inside the first cylindrical member 11 and can be taken in and out of the first cylindrical member 11 by being moved along the longitudinal direction of the first cylindrical member 11 under the control of the control device 30. <00??091> 【0018】 Similarly, each of the third to fifth cylindrical members 13 to 15 is located on the distal end side of each of the second to fourth cylindrical members 12 to 14. The diameter of each of the third to fifth cylindrical members 13 to 15 is smaller than the diameter of each of the second to fourth cylindrical members 12 to 14. Each of the third to fifth cylindrical members 13 to 15 is housed inside each of the second to fourth cylindrical members 12 to 14. Each of the third to fifth cylindrical members 13 to 15 can be inserted into and removed from the inside of each of the second to fourth cylindrical members 12 to 14 by being moved along the longitudinal direction of each of the second to fourth cylindrical members 12 to 14 under the control of the control device 30. The fifth cylindrical member 15 is located on the most distal end side of the operating rod 10. A holding portion 20 is connected to the distal end of the fifth cylindrical member 15. The first to fifth cylindrical members 11 to 15 are formed of a plastic containing, for example, polyvinyl chloride. 【0019】 When each of the second to fifth cylindrical members 12 to 15 enters the inside of each of the first to fourth cylindrical members 11 to 14 toward its proximal end side, the operating rod 10 contracts in its longitudinal direction. On the other hand, when each of the second to fifth cylindrical members 12 to 15 exits from the inside of each of the first to fourth cylindrical members 11 to 14 toward its distal end side, the operating rod 10 extends in its longitudinal direction. 【0020】 The holding portion 20 is connected to the distal end of the operating rod 10. The holding portion 20 has a shape in which the hook portion of the extension wire winch can be hooked and removed, and is, for example, a U-shaped having an opening upward. Specifically, the holding portion 20 includes a first portion connected to the distal end of the operating rod 10 and extending in the longitudinal direction of the operating rod 10, a second portion connected to the distal end of the first portion and extending in the lateral direction of the operating rod 10, and a pair of third portions connected to both ends of the second portion and extending upward in the longitudinal direction of the operating rod 10. The second portion may have a groove that fits the hook portion of the extension wire winch on one side in the lateral direction of the operating rod 10. The holding portion 20 is formed of, for example, metal in order to support the weight of the extension wire winch. 【0021】 The control device 30 includes a winch mechanism 31, a drive device 32, a winding thread 33, first to third interlocking threads 34a to 34c, first to fourth pulleys 34a to 34d, and first to second connecting parts 36a to 36b. Each part of the control device 30 is attached to each part of the operating rod 10. 【0022】 The winch mechanism 31 is attached to any position on one side of the first cylindrical member 11. The winch mechanism 31 should be attached in a position that allows it to be operated by a worker on the ground when the first cylindrical member 11 is installed on the ground. The winch mechanism 31 is driven by a drive device 32. Specifically, the winch mechanism 31 rotates (forward and reverse) by the drive device 32 applying rotational force to its rotating shaft. The winch mechanism 31 is a mechanism that winds up the winding thread 33 by rotating forward and unwinds the winding thread 33 by rotating in reverse. 【0023】 The drive unit 32 drives the winch mechanism 31. The drive unit 32 can be connected to the rotating shaft of the winch mechanism 31 and applies a rotational force to the rotating shaft in either the forward or reverse direction. The drive unit 32 is a device that can be held and operated by a worker on the ground, such as an electric screwdriver drill. 【0024】 The winding thread 33 has one end connected to the base end of the second cylindrical member 12 and the other end connected to the winch mechanism 31 (see Figures 2 and 3). The middle portion of the winding thread 33 (between the two ends) is movably supported by the first pulley 35a provided at the tip of the first cylindrical member 11. That is, the winding thread 33 is connected at one end to the base end of the second cylindrical member 12 via the first pulley 35a, and the other end is wound up or down by the winch mechanism 31. By winding or unwinding the other end of the winding thread 33 to the winch mechanism 31, the second cylindrical member 12 is moved along the longitudinal direction of the first cylindrical member 11. The winding thread 33 has sufficient strength to support the weight of the operating rod 10 and to pull up each cylindrical member. The winding thread 33 is made of, for example, nylon or polyethylene. 【0025】 The first interlocking thread 34a has one end connected to the base end of the third cylindrical member 13 and the other end connected to an arbitrary position on the other side of the first cylindrical member 11 (see Figures 2 and 3). The middle portion of the first interlocking thread 34a (between the one end and the other) is movably supported by the second pulley 35b provided at the tip of the second cylindrical member 12. The middle portion of the first interlocking thread 34a supported by the second pulley 35b moves up and down in conjunction with the winding thread 33 as the winding thread 33 is wound up or down by the winch mechanism 31. As a result, the first interlocking thread 34a moves the third cylindrical member 13 along the longitudinal direction of the second cylindrical member 12. 【0026】 The second interlocking thread 34b has one end connected to the base end of the fourth cylindrical member 14 and the other end connected to a first connecting part 36a attached to the first pulley 35a (see Figures 2 and 3). The middle section of the second interlocking thread 34b (between one end and the other) is movably supported by a third pulley 35c provided at the tip of the third cylindrical member 13. The middle section of the second interlocking thread 34b supported by the third pulley 35c moves up and down in conjunction with the winding thread 33 as the winding thread 33 is wound up or down by the winch mechanism 31. As a result, the second interlocking thread 34b moves the fourth cylindrical member 14 along the longitudinal direction of the third cylindrical member 13. 【0027】 The third interlocking thread 34c has one end connected to the base end of the fifth cylindrical member 15 and the other end connected to a second connecting part 36b attached to the second pulley 35b. The middle section of the third interlocking thread 34c (between the two ends) is movably supported by a fourth pulley 35d provided at the tip of the fourth cylindrical member 14. The middle section of the third interlocking thread 34c supported by the fourth pulley 35d moves up and down in conjunction with the winding thread 33 as the winding thread 33 is wound up or down by the winch mechanism 31. As a result, the third interlocking thread 34c moves the fifth cylindrical member 15 along the longitudinal direction of the fourth cylindrical member 14. The first to third interlocking threads 34a to 34c have sufficient strength to support the weight of the operating rod 10 and to pull up each cylindrical member. The first to third interlocking threads 34a to 34c are made of, for example, nylon or polyethylene. 【0028】 As shown in Figure 2, when the operating rod 10 is extended, the drive device 32 rotates the winch mechanism 31 in the forward direction (clockwise). This causes the winch mechanism 31 to wind up the other end of the winding thread 33. When the winding thread 33 is wound up, tension is applied to the other end of the winding thread 33 (the winch mechanism 31 side). This tension pulls one end of the winding thread 33 via the first pulley 35a, causing the second cylindrical member 12 to which one end of the winding thread 33 is connected to be lifted upward (moving upward along the longitudinal direction of the first cylindrical member 11). 【0029】 Furthermore, when the second cylindrical member 12 is lifted upward, the distance between the other end of the first interlocking thread 34a (the connection point with the first cylindrical member 11) and the second pulley 35b increases, and tension is applied to the other end of the first interlocking thread 34a. This tension pulls one end of the first interlocking thread 34a via the second pulley 35b, causing the third cylindrical member 13, to which one end of the first interlocking thread 34a is connected, to be lifted upward (moving upward along the longitudinal direction of the second cylindrical member 12). 【0030】 Furthermore, when the third cylindrical member 12 is lifted upward, the distance between the other end of the second interlocking thread 34b (first connection part 36a) and the third pulley 35c increases, and tension is applied to the other end of the second interlocking thread 34b. This tension pulls one end of the second interlocking thread 34b via the third pulley 35c, causing the fourth cylindrical member 14, to which one end of the second interlocking thread 34b is connected, to be lifted upward (moving upward along the longitudinal direction of the third cylindrical member 13). 【0031】 Similarly, the operation of the third interlocking thread 34c, the fourth pulley 35d, and the second connecting part 36b causes the fifth cylindrical member 15, to which one end of the third interlocking thread 34c is connected, to be lifted upward (moving upward along the longitudinal direction of the fourth cylindrical member 14). 【0032】 On the other hand, as shown in Figure 3, when the operating rod 10 is retracted, the drive device 32 reverses (rotates counterclockwise) the winch mechanism 31. This causes the winch mechanism 31 to rewind the other end of the winding thread 33. When the winding thread 33 is rewound, the tension on the other end of the winding thread 33 (the winch mechanism 31 side) is released. As a result, the second cylindrical member 12, to which one end of the winding thread 33 is connected, is lowered by its own weight (moves downward along the longitudinal direction of the first cylindrical member 11). In other words, the second cylindrical member 12 is housed inside the first cylindrical member 11. 【0033】 Furthermore, as the second cylindrical member 12 moves downward, the distance between the other end of the first interlocking thread 34a (the connection point with the first cylindrical member 11) and the second pulley 35b decreases, and the tension on the other end of the first interlocking thread 34a loosens. As a result, the third cylindrical member 13, to which one end of the first interlocking thread 34a is connected, is lowered by its own weight (moving downward along the longitudinal direction of the second cylindrical member 12). In other words, the third cylindrical member 13 is housed inside the second cylindrical member 12. 【0034】 Furthermore, as the third cylindrical member 13 moves downward, the distance between the other end of the second interlocking thread 34b (first connection part 36a) and the third pulley 35c decreases, and the tension on the other end of the second interlocking thread 34b loosens. As a result, the fourth cylindrical member 14, to which one end of the second interlocking thread 34b is connected, is lowered by its own weight (moving downward along the longitudinal direction of the third cylindrical member 13). In other words, the fourth cylindrical member 14 is housed inside the third cylindrical member 13. 【0035】 Similarly, the operation of the third interlocking thread 34c, the fourth pulley 35d, and the second connecting part 36b causes the fifth cylindrical member 15, to which one end of the third interlocking thread 34c is connected, to be lowered downward (moving downward along the longitudinal direction of the fourth cylindrical member 14). In other words, the fifth cylindrical member 15 is housed inside the fourth cylindrical member 14. 【0036】 <Method for attaching wire extension pulleys> A method for attaching a cable pulley using the cable pulley attachment device 1 according to this embodiment will be described. Figure 4 is a flowchart showing the method for attaching a cable pulley using the cable pulley attachment device 1 according to this embodiment. Figure 5 shows the process of attaching a cable pulley to an existing communication cable using the cable pulley attachment device 1 according to this embodiment. 【0037】 First, as shown in Figures 4 and 5, a towing rope for pulling the new communication cable is set on the cable pulling pulley (step S11). The cable pulling pulley includes a roller section for pulling the towing rope and the new communication cable, a support section that rotatably supports the roller section, and a hook section that can be attached to the existing communication cable. The towing rope is connected to the new communication cable and is used to pull the new communication cable and place it on the roller section of the cable pulling pulley by being wound onto a drum. The reason the new communication cable is not placed on the cable pulling pulley from the beginning is that the new communication cable is heavy, and if it were placed on the cable pulling pulley, it would be difficult to lift the pulley. 【0038】 Next, the wire pulling wheel is set in the wire pulling wheel mounting device 1 (step S12). Specifically, the drive device 32 is operated by a worker on the ground, and the operating rod 10 of the wire pulling wheel mounting device 1 is retracted. That is, the worker reverses (rotates counterclockwise) the winch mechanism 31 using the drive device 32 to lower the winding thread 33. This lowers the holding part 20 of the wire pulling wheel mounting device 1 to a position within reach of the worker. Then, with the operating rod 10 of the wire pulling wheel mounting device 1 retracted, the hook part of the wire pulling wheel is hooked onto the holding part 20 of the wire pulling wheel mounting device 1. 【0039】 Next, a cable-laying pulley is attached to the existing communication cable (step S13). Specifically, a worker on the ground operates the drive device 32, extending the operating rod 10 of the cable-laying pulley attachment device 1. That is, the worker uses the drive device 32 to rotate the winch mechanism 31 forward (clockwise) to wind up the winding thread 33. This raises the cable-laying pulley up to the existing communication cable. Then, the operating rod 10 is operated up, down, left, and right so that the hook portion of the cable-laying pulley hooks onto the existing communication cable. After that, steps S11 to S13 are repeated until the required number of cable-laying pulleys are attached. 【0040】 <Summary> As described above, the cable pulling pulley mounting device 1 in this embodiment comprises an operating rod 10 that can extend and retract in the longitudinal direction, a holding part 20 provided at the longitudinal end of the operating rod 10 and capable of holding a cable pulling pulley to be attached to an object at a high place, and a control device 30 provided on the operating rod 10 and controlling the extension and retraction of the operating rod 10. As a result, the cable pulling pulley mounting device 1 can be operated by a worker on the ground, allowing the cable pulling pulley to be easily and safely attached to an existing communication cable at a high place from the ground. 【0041】 <Variation> Figure 6 shows a modified example of the wire pulling pulley mounting device 1 of this embodiment. Specifically, Figure 6 shows the holding part 40 in a modified example of this embodiment. In the above embodiment, the holding part 20 was shaped such that the hook portion of the wire pulling pulley could be attached to and detached from it, for example, it was a U-shape with an opening at the top, but the present invention is not limited thereto. 【0042】 As shown in Figure 6, the modified holding part 40 includes a support part 41, a mounting part 42, three pulleys 43, an operating rope 44, and a suspension part 45. The support part 41 is supported at the tip of the operating rod 10 and has a cross shape. That is, the support part 41 includes a first part extending from the tip of the operating rod 10 in the longitudinal direction of the operating rod 10, and a second part perpendicular to the first part. The mounting part 42 is provided on the base end side of the first part of the support part 41 and has a hook shape that can be hooked onto an existing communication cable at a high place. Each of the three pulleys 43 is supported at the tip of the first part of the support part 41 and at both ends of the second part of the support part 41, respectively. The operating rope 44 is supported so as to be movable as each pulley 43 rotates, with the rope being sequentially hung on the three pulleys 43 supported by the support part 41. The operating rope 44 has one end that can be operated by a worker on the ground, and the other end to which a cable pulling pulley is attached. The suspension part 45 is attached to the other end of the operating rope 44 and detachably suspends the cable pulling pulley to be attached to the existing communication cable. With the above configuration, the holding part 40 can lift the cable pulling pulley to the existing communication cable by operating the operating rope 44 after the attachment part 42 has been attached to the existing communication cable. 【0043】 A modified example of the cable pulling pulley mounting device 1 of this embodiment will be described. First, a towing rope for pulling the newly installed communication cable is set on the cable pulling pulley. The setting of the towing rope is the same as in step S11 in the above embodiment. 【0044】 Next, the cable pulling pulley mounting device 1 is attached to the existing communication cable. Specifically, a worker on the ground operates the drive device 32, extending the operating rod 10 of the cable pulling pulley mounting device 1. That is, the worker uses the drive device 32 to rotate the winch mechanism 31 forward (clockwise) and wind up the winding thread 33. This raises the holding part 40 (mounting part 42) up to the existing communication cable. Then, the operating rod 10 is operated up, down, left, and right, and the mounting part 42 is hooked onto the existing communication cable. As a result, the cable pulling pulley mounting device 1 is supported by the existing communication cable. 【0045】 Next, the cable pulling pulley is set in the cable pulling pulley mounting device 1. Specifically, with the suspension section 45 at the other end of the operating rope 44 lowered to near the ground by a worker on the ground, the hook portion of the cable pulling pulley is hooked onto the suspension section 45. 【0046】 Next, the cable pulling pulley is attached to the existing communication cable. Specifically, a worker on the ground pulls one end of the operating rope 44, lifting the suspension unit 45 to which the cable pulling pulley is attached up to the existing communication cable. Then, one end and the other end of the operating rope 44 are manipulated up, down, left, and right, so that the hook portion of the cable pulling pulley is hooked onto the existing communication cable. 【0047】 As described above, in this modified version of the cable pulling pulley mounting device 1 of this embodiment, after the mounting part 42 is attached to the existing communication cable, the cable pulling pulley is lifted up to the existing communication cable and attached by operating the operating rope 44. Therefore, compared to the case where the heavy cable pulling pulley is first set on the cable pulling pulley mounting device 1 and then the cable pulling pulley mounting device 1 is lifted up to the existing communication cable, the operability of the cable pulling pulley mounting device 1 is improved, and the cable pulling pulley can be safely and easily attached to the existing communication cable at a high location. 【0048】 Furthermore, in the above embodiment, the winding thread 33 and the first to third linked threads 34a to 34c are formed from a single thread, but the present invention is not limited thereto. Each of the winding thread 33 and the first to third linked threads 34a to 34c may be formed from multiple threads to increase strength. 【0049】 Furthermore, in the above embodiment, the winding thread 33 and the first to third interlocking threads 34a to 34c are connected to the base end of each cylindrical member, but the present invention is not limited thereto. The winding thread 33 and the first to third interlocking threads 34a to 34c only need to be connected in a position where their tension can lift each cylindrical member, and they may be connected to the side of each cylindrical member, etc. 【0050】 In the above embodiment, the towing rope was set in step S11 as a method for attaching the cable pulling pulley, but this is not the only method. For example, the towing rope may be set after all the cable pulling pulleys have been installed. Also, in step S11, a newly installed communication cable may be set from the beginning instead of a towing rope. 【0051】 In the above embodiment, the cable pulling pulley was attached to an existing communication cable, but the present invention is not limited to this. The object to which the cable pulling pulley is attached is not limited to an existing communication cable; for example, it may be attached to a utility pole or its attachments. Examples of utility pole attachments include step bolts or overhead line fittings. Furthermore, if there are no existing communication cables between utility poles, a temporary suspension wire may be temporarily installed between the utility poles, and the cable pulling pulley may be attached to this temporary suspension wire. 【0052】 In the above embodiment, the subject was the laying work of outdoor communication cables, but the present invention is not limited thereto. For example, electric wires, which are an example of cables, may be the subject of the laying work. 【0053】 While several embodiments of this disclosure have been described above, these embodiments can be implemented in a variety of other forms, and various omissions, substitutions, and modifications are permitted without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents. 【0054】 <Note> The details described in each of the above embodiments are noted below. 【0055】 (Note 1) A retractable operating rod in the longitudinal direction, A holding portion is provided at the longitudinal end of the operating rod and is capable of holding a wire pulling pulley that is attached to an object at a high place, A control device provided on the operating rod for controlling the extension and retraction of the operating rod, A wire laying pulley mounting device equipped with the following features. 【0056】 (Note 2) The aforementioned operating rod is A first cylindrical member and A second cylindrical member having a smaller diameter than the first cylindrical member and being able to be moved in and out of the first cylindrical member by moving it along the longitudinal direction of the first cylindrical member, A wire pulling pulley mounting device as described in (Note 1). 【0057】 (Note 3) The control device is A winch mechanism attached to the first cylindrical member, A drive device for driving the winch mechanism, A winding thread, one end of which is connected to the second cylindrical member and the other end of which is wound up and down by the winch mechanism, moves the second cylindrical member along the longitudinal direction of the first cylindrical member, A wire pulling pulley mounting device as described in (Note 2). 【0058】 (Note 4) The aforementioned operating rod is The present invention includes a third cylindrical member having a smaller diameter than the second cylindrical member and being able to be moved in and out of the second cylindrical member by moving it along the longitudinal direction of the second cylindrical member. The wire pulling pulley mounting device described in (Appendix 3). 【0059】 (Note 5) The control device is One end of the winding thread is connected to the third cylindrical member, and the winding thread is wound up and down by the winch mechanism, thereby moving the third cylindrical member along the longitudinal direction of the second cylindrical member in conjunction with the winding thread, The wire pulling pulley mounting device described in (Appendix 4). 【0060】 (Note 6) A retractable operating rod in the longitudinal direction, A holding portion is provided at the longitudinal end of the operating rod and is capable of holding a wire pulling pulley that is attached to an object at a high place, A control device is provided at the longitudinal base end of the operating rod and controls the extension and retraction of the operating rod, A method for attaching a wire pulley using a wire pulley attachment device equipped with, The steps include: retracting the operating rod to hold the wire pulling pulley, The steps include extending the operating rod to lift the wire pulling pulley and attach it to the mounting target, A method for attaching a wire extension pulley, comprising the following features. [Explanation of symbols] 【0061】 1. Cable laying pulley mounting device 10...operation rod 11. First cylindrical member 12. Second cylindrical member 13. Third cylindrical member 14. Fourth cylindrical member 15. Fifth cylindrical member 20...Holding part 30.. Control device 31. Winch mechanism 32. Drive unit 33...winding thread 34a...First interlocking thread 34b...Second linking thread 34c...Third interlocking thread 35a...1st pulley 35b...Second pulley 35c...Third pulley 35d...4th pulley 36a...First connection section 36b...Second connection section 40...Holding part 41...Support part 42... Mounting part 43. Pulley 44..Operating rope 45...hanging part

Claims

[Claim 1] A retractable operating rod in the longitudinal direction, A holding portion is provided at the longitudinal end of the operating rod and is capable of holding a wire pulling pulley that is attached to an object at a high place, A control device provided on the operating rod for controlling the extension and retraction of the operating rod, Equipped with, The aforementioned operating rod is A first cylindrical member and A second cylindrical member having a smaller diameter than the first cylindrical member and being able to be moved in and out of the first cylindrical member by moving it along the longitudinal direction of the first cylindrical member, Includes, The control device is A winch mechanism attached to the first cylindrical member, A drive device for driving the winch mechanism, A winding thread, one end of which is connected to the second cylindrical member and the other end of which is wound up and down by the winch mechanism, moves the second cylindrical member along the longitudinal direction of the first cylindrical member, A cable laying pulley mounting device, including a cable laying pulley mounting device. [Claim 2] The aforementioned operating rod is The present invention includes a third cylindrical member having a smaller diameter than the second cylindrical member and being able to be moved in and out of the second cylindrical member by moving it along the longitudinal direction of the second cylindrical member. The wire pulling pulley mounting device according to claim 1. [Claim 3] The control device is One end of the winding thread is connected to the third cylindrical member, and the other end is connected to the first cylindrical member, and the winding thread is wound up and down by the winch mechanism, thereby moving the third cylindrical member along the longitudinal direction of the second cylindrical member in conjunction with the winding thread, The wire pulling pulley mounting device according to claim 2. [Claim 4] A retractable operating rod in the longitudinal direction, A holding portion is provided at the longitudinal end of the operating rod and is capable of holding a wire pulling pulley that is attached to an object at a high place, A control device provided on the operating rod for controlling the extension and retraction of the operating rod, Equipped with, The aforementioned operating rod is A first cylindrical member and A second cylindrical member having a smaller diameter than the first cylindrical member and being able to be moved in and out of the first cylindrical member by moving it along the longitudinal direction of the first cylindrical member, Includes, The control device is A winch mechanism attached to the first cylindrical member, A drive device for driving the winch mechanism, A winding thread, one end of which is connected to the second cylindrical member and the other end of which is wound up and down by the winch mechanism, moves the second cylindrical member along the longitudinal direction of the first cylindrical member, A method for attaching a wire pulley using a wire pulley attachment device, including The steps include: retracting the operating rod to hold the wire pulling pulley, The steps include extending the operating rod to lift the wire pulling pulley and attach it to the mounting target, A method for attaching a wire extension pulley, comprising the following features.

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