Cable pulling pulley mounting device and cable pulling pulley mounting method

Abstract

This invention provides a cable pulling device and a cable pulling method that enable easy and safe attachment of cable pulling devices 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 can be attached to a mounting target located at a high place, a first rope support part 20 connected to the tip of the operating rod, an operating rope 30 that is movably supported by the first rope support part and whose one end via the first rope support part is operated by a worker on the ground, and a strip-shaped member 40 connected to the other end of the operating rope via the first rope support part and capable of holding a cable pulling pulley 50 to be attached to the mounting target.

Description

Technical Field

[0001] The present disclosure relates to an extension cable hanger attachment device and an extension cable hanger attachment method.

Background Art

[0002] As an outdoor cable extension 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. However, since working at heights places a burden on the operator, a method of attaching an extension cable hanger from the ground has been under consideration.

[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

Summary of the Invention

Problems to be Solved by the Invention

[0005] [[ID=三十九]]However, in the method of Patent Document 1, since the operator manually lifts the pole fitting with the extension cable hanger, a 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 attachment device and an extension cable hanger attachment 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 cable pulley mounting device according to one aspect of this disclosure is: An operating rod that can be attached to an object located at a high place, A first rope support part connected to the tip of the operating rod, An operating rope is movably supported by the first rope support and one end of which is operated by a worker on the ground via the first rope support; A strip-shaped member connected to the other end of the operating rope via the first rope support portion, and capable of holding the wire pulling pulley to be attached to the mounting target, 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 cable pulling pulley mounting device 1 of this embodiment. [Figure 2] This diagram shows the configuration of the operating rod 10 in this embodiment. [Figure 3] This diagram shows the configuration of the first rope support section 20 of this embodiment. [Figure 4] This figure shows the configuration of the strip-shaped member 40 in this embodiment. [Figure 5] This figure shows the wire pulling pulley 50 that is attached by the wire pulling pulley mounting device 1 of this embodiment. [Figure 6] This flowchart shows a method for attaching a wire pulley using the wire pulley attachment device 1 according to this embodiment. [Figure 7] This diagram shows the process of attaching a cable pulling pulley 50 to an existing communication cable using the cable pulling pulley attachment device 1 according to this embodiment. [Figure 8] This figure shows a modified example of the first rope support section 20 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] <Overall Structure> 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 to each of the existing communication cables already installed at a high altitude between the utility poles. The cable pulling pulley is a metal pulley equipped with a hook 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. The existing communication cable already installed between utility poles is an example of an attachment target located at a high altitude.

[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] The configuration of the wire pulling pulley mounting device 1 according to this embodiment will now be described. Figure 1 is a diagram showing the configuration of the wire pulling pulley mounting device 1 according to this embodiment.

[0015] As shown in Fig. 1, the extension reel mounting device 1 includes an operating rod 10, a first rope support portion 20, an operating rope 30, and a belt-like member 40. The base end of the operating rod 10 serves as the handle of the operator on the ground, and the tip end is detachably attached to an existing communication cable. The first rope support portion 20 is connected to the tip end of the operating rod 10. The operating rope 30 is movably supported by the first rope support portion 20, and one end thereof via the first rope support portion 20 is operated by the operator on the ground. The belt-like member 40 is connected to the other end of the operating rope 30 via the first rope support portion 20 and can hold the extension reel 50.

[0016] For the extension reel mounting device 1, with the tip end of the operating rod 10 attached to the existing communication cable at a high location and the belt-like member 40 holding the extension reel 50, when one end of the operating rope 30 is pulled by the operator on the ground, the extension reel 50 is lifted up to the existing communication cable. Then, by operating the operating rope 30, the extension reel 50 is attached to the existing communication cable.

[0017] <Configuration of the operating rod 10> The configuration of the operating rod 10 according to the present embodiment will be described. Fig. 2 is a diagram showing the configuration of the operating rod 10 of the present embodiment.

[0018] As shown in Fig. 2, the operating rod 10 includes a main body 11, a mounting portion 12, a connecting portion 13, and a ring member 14.

[0019] [[ID=!7]] ! The main body 11 is a rod-shaped member that serves as the handle of the operator on the ground, and its cross-sectional shape is, for example, circular so that the operator can carry it. The main body 11 is formed of a lightweight material, for example, a plastic having electrical insulation properties.

[0020] The mounting portion 12 is provided at the tip of the main body 11. The mounting portion 12 has a U-shape that allows it to be attached to and detached from an existing communication cable. Specifically, the mounting portion 12 is connected to the tip of the main body 11 and comprises a first portion extending upward in the longitudinal direction of the main body 11, a second portion protruding from the tip of the first portion in the short direction of the main body 11, and a third portion extending downward in the longitudinal direction of the main body 11 from the tip of the second portion. The third portion of the mounting portion 12 also has a portion extending upward in the longitudinal direction of the main body 11 from the tip of the second portion. The mounting portion 12 is formed so that it can support the load of the cable pulling pulley mounting device 1 and the cable pulling pulley 50 even when the worker releases their hand while it is attached to an existing communication cable. The mounting portion 12 is preferably made of metal, for example, in order to support the weight of the cable pulling pulley mounting device 1 and the cable pulling pulley 50.

[0021] The connecting portion 13 is provided at the tip of the main body 11 and extends longitudinally from the first portion of the mounting portion 12. The connecting portion 13 is located above the first portion of the mounting portion 12. The first rope support portion is connected to the tip of the connecting portion 13. The connecting portion 13 is preferably made of metal, for example, in order to support the weight of the wire pulling pulley mounting device 1 and the wire pulling pulley 50.

[0022] The ring member 14 is provided so as to cover the circumferential direction at the longitudinal center of the main body 11. The ring member 14 is connected to the base end of the strip-shaped member 40. Multiple rollers are provided around the ring member 14. The multiple rollers are rotatable so that the ring member 14 can move along the operating rod 10.

[0023] <Configuration of the first rope support section 20> The configuration of the first rope support section 20 according to this embodiment will now be described. Figure 3 is a diagram showing the configuration of the first rope support section 20 according to this embodiment.

[0024] As shown in Figure 3, the first rope support section 20 comprises a main body 21, a swivel structure 22, and a pulley 23.

[0025] The main body 21 is connected to the connection portion 13 of the operating rod 10 and is provided to extend in the longitudinal direction of the operating rod 10. The main body 21 is, for example, cylindrical and houses the connection portion 13 inside. The main body 21 and the connection portion 13 are fixed and connected by bolts that pass through both. The main body 21 is made of, for example, metal. The main body 21 is formed to be long enough so that when the mounting portion 12 of the operating rod 10 is hung on the existing communication cable and the operating rope 30 is pulled downwards to lift the cable pulling pulley 50, the hook 53 of the cable pulling pulley 50 reaches above the existing communication cable.

[0026] The swivel structure 22 is provided at the tip of the main body 21 and comprises a cylindrical portion 22a, a protruding portion 22b, and a pulley support portion 22c. The cylindrical portion 22a is, for example, cylindrical and has a larger diameter than the diameter of the main body 21. The cylindrical portion 22a is provided so as to cover the tip of the main body 21 and is rotatable in the circumferential direction (around the axis). The protruding portion 22b is connected to the cylindrical portion 22a and is provided so as to protrude in the short direction of the main body 21. The pulley support portion 22c is provided so as to extend downward from the tip of the protruding portion 22b. The pulley support portion 22c supports the pulley 23 so as to be rotatable in the circumferential direction (around the axis). The swivel structure 22 is made of, for example, metal.

[0027] The pulley 23 is supported by the pulley support portion 22c of the swivel structure 22, and is rotatable in the circumferential direction of the pulley support portion 22c, allowing for angle adjustment relative to the pulley support portion 22c. The pulley 23 has a groove in its roller portion, and by rotating with the operating rope 30 placed in the groove, it guides and supports the operating rope 30 so that it can move. One end of the operating rope 30 is operated by a worker on the ground via the pulley 23, and the other end is connected to the tip of the strip-shaped member 40. The operating rope 30 is, for example, about 5 mm in diameter and about 16 m in length, but is not limited to this; it should be strong enough to support the cable pulling pulley 50 and at least twice the distance to the mounting target at high altitude.

[0028] <Structure of the strip-shaped member 40> The configuration of the strip-shaped member 40 according to this embodiment will now be described. Figure 4 is a diagram showing the configuration of the strip-shaped member 40 according to this embodiment.

[0029] As shown in Figure 4, the strip-shaped member 40 comprises a main body 41, a pulley holding portion 42, and a second rope support portion 43.

[0030] The main body 41 is a strip-shaped metal member, such as a flat bar. The tip of the main body 41 is connected to the other end of the operating rope 30 via the pulley 23 of the first rope support section 20, and the base end of the main body 41 is connected to the ring member 14 of the operating rod 10. Specifically, a pulley holder 42 is provided at the tip of the main body 41, and the tip of the pulley holder 42 is connected to the operating rope 30. In addition, a through hole is provided at the base end of the main body 41, and the ring member passing through this through hole is connected to the ring member 14 of the operating rod 10.

[0031] The pulley holder 42 is provided at the tip of the main body 41. The pulley holder 42 is a J-shaped metal hook capable of hooking the ring member of the wire pulling pulley 50 shown in Figure 5. That is, the pulley holder 42 has a first part that extends in the planar direction of the main body 41 and a second part that bends from the base end of the first part and separates from the main body 41. The tip side of the first part of the pulley holder 42 and the main body 41 are connected, for example, by a screw, and the pulley holder 42 is rotatable in the planar direction of the main body 41 around this connection point. At this time, the pulley holder 42 rotates so that its center of gravity is directly below the connection point while holding the wire pulling pulley 50. A through hole is provided on the tip side of the screw of the first part, and the other end of the operating rope 30 is connected by passing it through the through hole and tying it. The second part of the pulley holder 42 may have a wave-like shape with an uneven cross-section, for example, to prevent the wire pulling pulley 50 from falling out. The pulley holder 42 is hooked onto the ring member 56 of the wire pulling pulley 50, and can lift the wire pulling pulley 50 as the operating rope 30 moves.

[0032] Figure 5 shows the wire pulling pulley 50 that is attached by the wire pulling pulley mounting device 1 of this embodiment.

[0033] As shown in Figure 5, the cable pulling pulley 50 includes a roller 51 that rotates relative to the towing rope and the newly installed communication cable, a support member 52 that rotatably supports the roller 51 at both ends, a hook 53 provided above the support member 52 and hooked onto the existing communication cable, an arm 55 that rotatably supports the base end of the hook 53 via a rotating shaft 54 ​​and opens and closes relative to the tip of the hook 53 as shown by the arrow in Figure 5, and a ring member 56 connected to the arm 55. When the ring member 56 is suspended from the pulley holding part 42, the tip of the arm 55 separates from the tip of the hook 53, and when the ring member 56 is removed from the pulley holding part 42, the tip of the arm 55 returns to a state in contact with the tip of the hook 53.

[0034] As shown again in Figure 4, the second rope support portion 43 is provided on the tip side of the longitudinal center of the main body 41 and movably supports one end of the operating rope 30. The second rope support portion 43 is, for example, an eye bolt composed of a bolt portion and a ring portion. The bolt portion of the eye bolt of the second rope support portion 43 is connected to the main body 41, and the operating rope 30 is supported by passing one end of the operating rope 30 through the ring portion. The operating rope 30 is operated via the second operating rope support portion 43.

[0035] <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 6 is a flowchart showing the method for attaching a cable pulley using the cable pulley attachment device 1 according to this embodiment. Figure 7 shows the process of attaching a cable pulley 50 to an existing communication cable using the cable pulley attachment device 1 according to this embodiment.

[0036] First, as shown in Figures 6 and 7, a towing rope for pulling the new communication cable is set on the cable pulling pulley 50 (step S11). 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 51 of the cable pulling pulley 50. The reason the new communication cable is not placed on the cable pulling pulley 50 from the beginning is that the new communication cable is heavy, and if it were placed on the cable pulling pulley 50, it would be difficult to lift the cable pulling pulley 50.

[0037] Next, the cable pulling pulley mounting device 1 is attached to the existing communication cable (step S12). Specifically, the operating rod 10 of the cable pulling pulley mounting device 1 is lifted and the mounting part 12 is hooked onto the existing communication cable. At this time, since the cable pulling pulley 50 is not attached to the cable pulling pulley mounting device 1, the worker can easily and effortlessly attach the cable pulling pulley mounting device 1 to the existing communication cable. After the mounting part 12 is hooked onto the existing communication cable, the worker releases their hand from the operating rod 10. As a result, the cable pulling pulley mounting device 1 is suspended from the existing communication cable, with one end of the operating rope 30 and the strip-shaped member 40 connected to the other end of the operating rope 30 hanging down via the pulley 23.

[0038] Next, the cable pulling pulley 50 is set on the pulley holding portion 42 of the strip-shaped member 40 on the ground (step S13). Specifically, the strip-shaped member 40 on the other end of the operating rope 30 is pulled downward, lowering the position of the pulley holding portion 42. In this state, a worker on the ground hooks the ring member 56 of the cable pulling pulley 50 onto the pulley holding portion 42. With the ring member 56 hooked onto the pulley holding portion 42, the weight of the cable pulling pulley 50 causes the tip of the arm 55 to pivot upward relative to the tip of the hook 53, and the tip of the arm 55 separates from the tip of the hook 53. As a result, the hook 53 is released, and the existing communication cable can be hooked onto it.

[0039] Next, the cable pulling pulley 50 is lifted by pulling one end of the operating rope 30, and the cable pulling pulley is attached to the existing communication cable (step S14). Specifically, by pulling one end of the operating rope 30 downwards, the cable pulling pulley 50 is lifted up to the existing communication cable together with the strip-shaped member 40. Then, by swinging the operating rope 30 from side to side, the horizontal position of the cable pulling pulley 50 is adjusted, and the hook 53 of the cable pulling pulley 50 is hooked onto the existing communication cable. After that, by releasing the tension on one end of the operating rope 30, the ring member 56 of the cable pulling pulley 50 is removed from the pulley holding part 42. As a result, the weight of the cable pulling pulley 50 is released, and the tip of the arm 55 rotates downward relative to the tip of the hook 53, and the tip of the arm 55 comes into contact with the tip of the hook 53. This closes the hook 53, and the cable pulling pulley 50 is stably held so as not to fall from the existing communication cable.

[0040] Next, the cable pulling pulley mounting device 1 is removed from the existing communication cable (step S15). If the installation of all cable pulling pulleys 50 is not complete (if the answer to step S16 is NO), the process returns to step S11 and the same work is performed. On the other hand, if the installation of all cable pulling pulleys 50 is complete (if the answer to step S16 is YES), the cable pulling pulley installation work is completed. After that, the new communication cable is connected to the towing rope, and in this state, the towing rope is pulled so that it is wound onto the drum.

[0041] <Summary> As described above, the cable pulling pulley mounting device 1 in this embodiment comprises an operating rod 10 that can be attached to an existing communication cable located at a high place, a first rope support part 20 connected to the tip of the operating rod 10, an operating rope 30 that is movably supported by the first rope support part 20 and operated by a worker on the ground, and a strip-shaped member 40 connected to the operating rope and capable of holding the cable pulling pulley 50. As a result, after the operating rod 10 is attached to the existing communication cable, the cable pulling pulley 50 can be attached to the existing communication cable by operating the operating rope 30. In other words, when operating the operating rod 10, it is not necessary to lift the heavy cable pulling pulley 50, so the cable pulling pulley 50 can be attached easily and safely from the ground.

[0042] Furthermore, in this embodiment, the wire pulling pulley 50 is held by a rigid strip-shaped member 40 (flat bar), and the operating rope 30 is operated. This suppresses excessive lateral movement and range of motion of the wire pulling pulley 50 when the operating rope 30 is operated, thereby improving operability. In addition, by connecting the ring member 14 of the operating rod 10 to the base end of the strip-shaped member 40, the ring member 14 becomes movable along the operating rod 10, and the base end position of the strip-shaped member 40 also moves so as to be guided along the operating rod 10. This further suppresses the range of motion of the wire pulling pulley 50, thereby further improving operability.

[0043] Furthermore, in this embodiment, a swivel structure 22 is provided on the first rope support section 20. This allows the rotation angle of the strip-shaped member 40 and the cable pulling pulley 50 to be freely adjusted by operating the operating rope 30, making it easier to attach the cable pulling pulley 50 to an existing communication cable. In addition, the operating rope 30 is operated via the second operating rope support section 43. By utilizing the moment of this second operating rope support section 43, the angle of the swivel structure 22 can be easily adjusted.

[0044] Furthermore, in this embodiment, the pulley holder 42 is rotatable in the planar direction of the strip-shaped member 40. As a result, the cable pulling pulley 50 can always remain hanging downwards due to its own weight, so that the hook 53 of the cable pulling pulley 50 can be easily hooked onto an existing communication cable.

[0045] (modified version) Figure 8 shows a modified example of the first rope support section 20 of this embodiment. In the above embodiment, the cylindrical section 22a of the swivel structure section 22 was freely rotatable in the circumferential direction, but the present invention is not limited thereto. As shown in Figure 8, for example, the cylindrical section 22a may be rotatable in the circumferential direction and fixed at any angle. For example, the cylindrical section 22a may have a plurality of through holes 22d arranged in the circumferential direction, and may be fixed by fitting a button structure provided on the inner body 21 into any of the through holes. The plurality of through holes 22d may be provided at intervals of 30 degrees, for example.

[0046] In the above embodiment, the main body 11 of the operating rod 10 was formed from a single rod-shaped member, but the present invention is not limited thereto. For example, the main body 11 may be configured to be extendable and retractable in the longitudinal direction, and a handle that can be gripped by an operator may be provided at the base end of the main body 11. This makes it easier to work according to the height of existing communication cables and other objects to which pulleys are attached, and further reduces the burden on the operator.

[0047] 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 cable pulling pulleys 50 have been installed (after step S16). Also, in step S11, a newly installed communication cable may be set from the beginning instead of a towing rope.

[0048] In the above embodiment, the cable pulling pulley 50 was attached to an existing communication cable, but the present invention is not limited thereto. The object to which the cable pulling pulley 50 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 50 may be attached to this temporary suspension wire.

[0049] 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.

[0050] 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.

[0051] <Note> The details described in each of the above embodiments are noted below.

[0052] (Note 1) An operating rod that can be attached to an object located at a high place, A first rope support part connected to the tip of the operating rod, An operating rope is movably supported by the first rope support and one end of which is operated by a worker on the ground via the first rope support; A strip-shaped member connected to the other end of the operating rope via the first rope support portion, and capable of holding the wire pulling pulley to be attached to the mounting target, A cable pulling pulley mounting device equipped with the necessary components.

[0053] (Note 2) The first rope support section is, The main body connected to the tip of the aforementioned operating rod, A pulley connected to the tip of the main body, which movably supports the operating rope, A wire pulling pulley mounting device according to claim 1, comprising the above.

[0054] (Note 3) The main body of the first rope support and the pulley of the first rope support are connected by a swivel structure. The wire pulling pulley mounting device according to claim 1.

[0055] (Note 4) The aforementioned strip-shaped member is a flat bar extending in the longitudinal direction of the operating rope. The wire pulling pulley mounting device according to claim 1.

[0056] (Note 5) The strip-shaped member is rotatable in the planar direction and includes a pulley holder capable of holding the wire pulling pulley. The wire pulling pulley mounting device according to claim 1.

[0057] (Note 6) The aforementioned strip-shaped member includes a second rope support portion that movably supports one end of the operating rope, One end of the aforementioned operating rope is operated by a worker on the ground via the second rope support. The wire pulling pulley mounting device according to claim 1.

[0058] (Note 7) The operating rod is provided with a ring member that is circumferentially mounted and movable longitudinally, The strip-shaped member is connected to the operating rod via the ring member. The wire pulling pulley mounting device according to claim 1.

[0059] (Note 8) An operating rod that can be attached to an object located at a high place, A first rope support part connected to the tip of the operating rod, An operating rope is movably supported by the first rope support and one end of which is operated by a worker on the ground via the first rope support; A strip-shaped member connected to the other end of the operating rope via the first rope support portion, and capable of holding the wire pulling pulley to be attached to the mounting target, A method for attaching a wire pulley using a wire pulley attachment device, The steps include attaching the operating rod to the object to be mounted, The step of holding the wire pulling pulley on the strip-shaped member, The steps include: pulling one end of the operating rope to lift the wire pulling pulley and attach it to the object to be attached; A method for attaching a wire extension pulley, comprising the following features. [Explanation of symbols]

[0060] 1. Cable laying pulley mounting device 10...operation rod 11. Main unit 12. Mounting part 13. Connection part 14. Ring component 20. First rope support section 21...Main unit 22. Swivel structure 22a...Cylindrical part 22b...Connection part 22c...Pulley support part 23. Pulley 30...Operating rope 40. Strip-shaped member 41...Main unit 42...Golden wheel holding part 43...Second rope support section 50... Line extension gold car 51..Laura 52...Support member 53... Hook 54... Rotation axis 55...arm 56.. Ring component

Claims

1. An operating rod that can be attached to an object located at a high place, A first rope support part connected to the tip of the operating rod, An operating rope is movably supported by the first rope support and one end of which is operated by a worker on the ground via the first rope support, A strip-shaped member connected to the other end of the operating rope via the first rope support portion, and capable of holding the wire pulling pulley to be attached to the mounting target, A cable pulling pulley mounting device equipped with the necessary components.

2. The first rope support section is, The main body connected to the tip of the aforementioned operating rod, A pulley connected to the tip of the main body, which movably supports the operating rope, A wire pulling pulley mounting device according to claim 1, comprising the above.

3. The main body of the first rope support and the pulley of the first rope support are connected by a swivel structure. The wire pulling pulley mounting device according to claim 2.

4. The aforementioned strip-shaped member is a flat bar extending in the longitudinal direction of the operating rope. The wire pulling pulley mounting device according to claim 1.

5. The strip-shaped member is rotatable in the planar direction and includes a pulley holder capable of holding the wire pulling pulley. The wire pulling pulley mounting device according to claim 1.

6. The aforementioned strip-shaped member includes a second rope support portion that movably supports one end of the operating rope, One end of the aforementioned operating rope is operated by a worker on the ground via the second rope support section. The wire pulling pulley mounting device according to claim 1.

7. The operating rod is provided with a ring member that is circumferentially mounted and movable longitudinally, The strip-shaped member is connected to the operating rod via the ring member. The wire pulling pulley mounting device according to claim 1.

8. An operating rod that can be attached to an object located at a high place, A first rope support part connected to the tip of the aforementioned operating rod, An operating rope is movably supported by the first rope support and one end of which is operated by a worker on the ground via the first rope support, A strip-shaped member connected to the other end of the operating rope via the first rope support portion, and capable of holding the wire pulling pulley to be attached to the mounting target, A method for attaching a wire pulley using a wire pulley attachment device, The steps include attaching the operating rod to the object to be mounted, The step of holding the wire pulling pulley on the strip-shaped member, The steps include: pulling one end of the operating rope to lift the wire pulling pulley and attach it to the object to be attached; A method for attaching a wire extension pulley, comprising the following features.

Images