Live wire distribution tool

Abstract

The present application relates to a live wire distribution tool comprising a retractor and a wire holder, the wire holder (70A) comprising a first connection portion (30) and the retractor (10) comprising a second connection portion (50). The first connection portion (30) includes a guide groove (33), a lock slide member (36), and an operation ring (39). The upper end (PE) of the guide groove (33) is open. The locking slide member (36) locks the connection state of the first connection part (30) and the second connection part (50). The operating ring (39) is operated for unlocking. The second connecting part (50) comprises a convex part (52) capable of moving along the guide groove (33). The projection (52) is movable in a direction along the electric wire between a first position (P1) and a second position (P2) inside the guide groove (33). The guide groove (33) is formed such that the first position (P1) is connected to the upper end (PE) via the second position (P2). When the first connecting part (30) and the second connecting part (50) are connected, the protruding part (52) is located at the first position (P1). The lock slide member (36) prevents the protrusion (52) from moving from the first position (P1) to the second position (P2). According to the invention, the efficiency of the operation of mounting the body from the wire holder or taking down the body from the wire holder can be improved.

Description

Technical Field

[0001] This invention relates to a live wire distribution tool including a telescopic device and a wire clamp. Background Technology

[0002] Patent Document 1 discloses a tool for supporting and tensioning a covered wire used in construction operations where a covered wire is cut while suspended in an overhead position. This tool includes a pair of wire clamps and an elongated telescopic member, the pair of wire clamps holding the covered wire. Each wire clamp is connected to the telescopic member via a connecting tool.

[0003] Patent Document 1 discloses a ziplock as an example of a connecting tool. The ziplock is provided on a telescopic device and consists of a hook and an anti-disengagement component. The hook is configured with an open upper side, and the anti-disengagement component is arranged to close this open portion. A connecting tool of a wire clamp is attached to the hook.

[0004] Patent document 1 discloses that, during construction work, a pair of wire clamps are fixed to the covered wire at a predetermined interval, and then an expansion joint is arranged between the pair of wire clamps to engage the connecting tool.

[0005] Existing technology

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2020-145818 Summary of the Invention

[0008] The problem the invention aims to solve

[0009] Patent Document 1 discloses a method where a support ring of a wire clamp is held by a remote operating tool, and after being suspended from the wire sheath (wire-like body), the inlet closing device is pulled down using a hook rod. However, this requires two actions using the remote operating tool. If the inlet closing part of the wire clamp can be completed simultaneously by suspending the wire clamp from the wire sheath (wire-like body) with the remote operating tool and then cutting off the remote operating tool from the wire clamp, the efficiency of the operation can be improved.

[0010] In Patent Document 1, during the operation of suspending the wire clamps at both ends of the covered wire (wire-like body) with a remote operating tool and then connecting the telescopic device to the wire clamp with the remote operating tool, the spacing between the wire clamp, the covered wire (wire-like body), and the wire clamp is relatively narrow, which allows for improvement in the efficiency of connecting the telescopic device.

[0011] Patent Document 1 discloses the removal of a pair of wire clamps from the insulated wire after the operation, but it is unclear whether the connection made by the connecting tool was disconnected beforehand and only the telescopic joint was removed. It is conceivable that if the connection of the connecting tool could be disconnected first and only the telescopic joint removed and detached, the physical burden on the operator could be reduced.

[0012] However, in the structure of Patent Document 1, when the connection between the line clamp and the telescopic device is released via the loop, a tool is needed to press the anti-detachment component of the loop inward toward the hook, creating a gap between the anti-detachment component and the hook. The connecting tool is then pulled upward through this gap. Therefore, the tool becomes an obstacle relative to the connecting tool that is to be pulled upward, thus there is room for improvement in terms of reducing the efficiency of the connection release operation.

[0013] In view of the above, the object of the present invention is to improve the efficiency of the operation of installing or removing the body from the wire clamp.

[0014] Solution and effect of the problem

[0015] The problem to be solved by the present invention has been described above. Next, the method for solving the problem and its effects will be explained.

[0016] According to a first aspect of the present invention, a live wire dispensing tool with the following structure is provided. Specifically, the live wire dispensing tool includes a telescopic member and a wire clamp. The telescopic member is telescopic. The wire clamp is capable of holding a wire. The telescopic member includes a first connecting portion. The wire clamp includes a second connecting portion. The first connecting portion includes a guide groove, a locking member, and an operating member. The upper end of the guide groove is open. The locking member locks the first connecting portion and the second connecting portion in a connected state. The operating member is operated to release the lock made by the locking member. The second connecting portion includes a protrusion movable along the guide groove. The protrusion is movable within the guide groove between a first position below the upper end and a second position below the upper end in the direction along the wire. The guide groove is formed such that the first position is connected to the upper end via the second position. In the connected state of the first connecting portion and the second connecting portion, the protrusion is located at the first position. The locking member prevents the protrusion from moving from the first position to the second position.

[0017] This reduces the weight supported by the operator and lightens the physical burden by separating the first and second connecting parts when installing or removing the live wire distribution tool from the wire. Since the first and second connecting parts are locked by a locking member once connected, accidental separation is prevented. Once connected, if the protrusion does not move horizontally from the first position, it cannot detach from the upper end of the guide groove via the second position. Furthermore, the locking member is configured to prevent the protrusion from moving from the first position to the second position. Therefore, it is easier to position the locking member below the first connecting part than to lock it by closing the upper end of the guide groove with a certain component. Thus, it is easier to achieve a layout where the locking can be released without raising the operating tool to the vicinity of the upper end of the guide groove. Since it is not necessary to operate near the upper end of the guide groove with the operating tool, the operating tool is less likely to become an obstacle relative to the protrusion that needs to be detached upwards from the upper end of the guide groove, making the separation operation smoother.

[0018] In the live wire distribution tool, the following structure is preferred: the locking member is movable between a locked position and an unlocked position below the locked position. The first connecting portion includes a force-applying member that applies force to the locking member toward the locked position. When the locking member is in the locked position, movement of the protrusion from the first position to the second position is prevented. When the locking member is in the unlocked position, movement of the protrusion from the first position to the second position is permitted.

[0019] This allows for easy switching between locked and unlocked states by moving the locking component.

[0020] In the live wire distribution tool, preferably the locking component is capable of sliding up and down between the locked position and the unlocked position.

[0021] This simplifies the structure used to move the locking component.

[0022] In the live wire distribution tool, the operating component is preferably positioned below the lower end of the guide groove.

[0023] This improves operability because the lock can be released by operating the lower-positioned operating parts.

[0024] In the live wire distribution tool, it is preferable that the guide groove bends more than once between the second position and the upper end.

[0025] In this way, the protrusion located at the first position of the guide groove cannot detach from the upper end of the guide groove without passing through the complex-shaped guide groove. Therefore, it is possible to reliably prevent the first connecting part and the second connecting part from accidentally separating.

[0026] In the live wire distribution tool, preferably when the protrusion is in the first position, the telescopic member can rotate up and down relative to the wire clamp about the first position.

[0027] In this way, with the first and second connecting parts connected, the connecting portion can move like a joint. Therefore, the operability of the live wire distribution tool is improved.

[0028] In the live wire distribution tool, the following structure is preferred: The locking member is movable between a locked position and an unlocked position below the locked position. The first connecting portion includes a recess with its upper end open. The second connecting portion includes a raised portion that can be inserted into the recess. The raised portion moves integrally with the raised portion. The locking member protrudes into the recess in the locked position. When the locking member is in the locked position, the protruding portion of the locking member contacts the raised portion, thereby preventing the raised portion from moving from the first position to the second position.

[0029] This allows for the miniaturization of the first connecting part. Furthermore, since the locking component protrudes into the recess, it can protect the locking component from external impacts.

[0030] In the live wire distribution tool, preferably when the first connecting part and the second connecting part are connected, and a force is applied in the direction that separates the telescopic member from the wire clamp, a force in the opposite direction to the direction that moves the protrusion from the first position to the second position is applied to the protrusion or the guide groove.

[0031] In this way, the force generated by the contraction of the telescoping mechanism can be used to hold the protrusion in the first position. Therefore, accidental separation of the first connecting part and the second connecting part can be reliably prevented.

[0032] In the live wire distribution tool, the following structure is preferred: the locking member is movable between a locked position and an unlocked position below the locked position. The first connecting portion includes a retaining mechanism that holds the locking member in the unlocked position.

[0033] This allows the unlocked state to continue without applying continuous operating force to the operating components. Therefore, separating the first and second connecting parts becomes easier.

[0034] In the live wire distribution tool, the following structure is preferred: The locking member is capable of sliding up and down between the locked position and the unlocked position. The retaining mechanism includes a limiting protrusion and a retaining member. The retaining member has a vertically oriented moving groove. When the locking member is in the unlocked position, rotation of the operating member switches the phase of the moving groove from a state where the phase of the limiting protrusion is aligned with the phase of the locking member to a state where the phases are not aligned. When the phase of the limiting protrusion is aligned with the phase of the moving groove, the limiting protrusion can move relative to the locking member in the vertical direction within the moving groove as the locking member moves up and down. When the phase of the limiting protrusion is not aligned with the phase of the moving groove, the locking member is held in the unlocked position by contacting the retaining member through the limiting protrusion.

[0035] In this way, the presence or absence of the unlocked state maintained by the holding mechanism can be switched by simply rotating the operating component.

[0036] In the live wire distribution tool, preferably at least a portion of at least one of the wire clamp and the telescopic member is made of magnesium alloy.

[0037] This allows for a lighter weight compared to previous models by using magnesium alloys in the wire clamps and telescopic components. Consequently, the physical burden on workers is further reduced.

[0038] According to a second aspect of the present invention, a method for setting up the live wire distribution tool is provided as follows. In this method, a wire clamp, detached from the telescopic member, is installed on the wire. A first connecting portion and a second connecting portion are connected, the first connecting portion being provided in the wire clamp while it is installed on the wire, and the second connecting portion being provided in the telescopic member.

[0039] This reduces the weight that workers need to support during the installation of live wire distribution tools, thus alleviating physical strain. Attached Figure Description

[0040] Figure 1 This is a front view showing the overall structure of the live wire distribution tool according to this embodiment.

[0041] Figure 2 This is a sectional perspective view showing the structure of the body of the connecting wire clamp and the live wire distribution tool.

[0042] Figure 3 This is a cross-sectional view illustrating how the raised part is inserted into the recess and the working protrusion is inserted into the guide groove for connecting the wire clamp and the live wire distribution tool body.

[0043] Figure 4 It is a cross-sectional view showing the position of the protrusion in the middle of the guide groove.

[0044] Figure 5 It is a cross-sectional view showing the completed connection operation with the sliding pin in the locked position.

[0045] Figure 6 This is a cross-sectional view showing how the operating ring is pulled down to separate the wire clamp and the live wire dispensing tool body, causing the sliding pin to move to the unlocked position.

[0046] Figure 7 It is a cross-sectional view showing how the sliding pin is held in the unlocked position by a retaining mechanism.

[0047] Figure 8 This is a front view showing the operation of suspending one of a pair of wire clamps over the wrapped wire in order to set up a live wire distribution tool.

[0048] Figure 9 This is a front view showing the wire clamp suspended over the wrapped wire.

[0049] Figure 10 This is a front view showing the operation of connecting the telescopic device to the online clamp.

[0050] Figure 11 This is a front view showing the operation of attaching a telescopic device to the wire clamp while the remaining wire clamp in a pair is suspended in a state of being covered with wire.

[0051] Figure 12 This is a front view showing the operation of separating the expansion joint from the wire clamp on one side in order to remove the live wire distribution tool.

[0052] Figure 13 This is a front view showing the operation of separating the telescopic joint from the line clamp on the opposite side.

[0053] Figure 14 This is a cross-sectional view showing a modified example of a live wire distribution tool. Detailed Implementation

[0054] Next, embodiments of the present invention will be described with reference to the accompanying drawings.

[0055] Figure 1 The live wire distribution tool 100 shown is used for cutting the sheathed wire (electrical cable) 90, which is an overhead line, in an overhead configuration. The live wire distribution tool 100 includes an expansion joint 10 and wire clamps 70A and 70B.

[0056] In the following description of the structure of the live wire distribution tool 100, when it is installed on the covered wire 90, the direction parallel to the covered wire 90 is sometimes referred to as the left-right direction. Furthermore, the direction perpendicular to either the left-right or up-down direction is sometimes referred to as the front-back direction. Figure 1 This is a diagram of the live wire distribution tool 100 viewed from the front.

[0057] During construction, a pair of wire clamps 70A and 70B are installed for each insulated wire 90, and the expansion joint 10 is configured to connect the pair of wire clamps 70A and 70B. Since the wire clamps 70A and 70B are substantially symmetrical, the structure of the wire clamp 70A will be described below as representative.

[0058] The wire clamp 70A includes a main body 71, a fixed-side grip 72, a movable-side grip 73, an opening / closing cover 74, an operating lever 75, a spiral shaft 76, a cone 77, and a grip locking operation part 78.

[0059] The main body 71 is a component that serves as the base for various parts that constitute the wire clamp 70A. A fixed-side gripping part 72 is fixed to the upper end of the main body 71.

[0060] A movable grip 73 is mounted on the body 71 below the fixed grip 72. The movable grip 73 is capable of moving up and down relative to the body 71. The fixed grip 72 and the movable grip 73 are arranged facing each other in the vertical direction. Each of the fixed grip 72 and the movable grip 73 has an elongated groove (not shown) for receiving the upper or lower portion of the wrapped wire 90. The wire clamp 70A is mounted on the wrapped wire 90 such that the length direction of the groove is along the wrapped wire 90. Hereinafter, the space between the fixed grip 72 and the movable grip 73 will be referred to as the gripping space, and the direction of the groove will be referred to as the wire direction. The wire direction is consistent with the left-right direction. Because a limiting mechanism (not shown) is provided in the movable grip 73, it cannot move substantially relative to the body 71 in the wire direction.

[0061] The gripping space is open on either side in the front-back direction (in this embodiment, the front side). The covered wire 90 can be inserted into or removed from the gripping space through this open portion.

[0062] The opening / closing cover 74 is a plate-shaped component. The opening / closing cover 74 is supported by the body 71 and can rotate vertically within a specified angle range. When the opening / closing cover 74 is in the downward position, the open portion of the gripping space is closed by the opening / closing cover 74. When the opening / closing cover 74 moves upward, the gripping space opens. A force-applying spring (not shown) is installed on the opening / closing cover 74. This force-applying spring applies force to the opening / closing cover 74 in the direction of closing the gripping space (specifically, downward).

[0063] The operating lever 75 is an elongated component mounted on the lower part of the movable side grip 73. The operating lever 75 is mounted on the movable side grip 73 via a sliding mechanism (not shown) formed by a groove. Therefore, the operating lever 75 can slide relative to the movable side grip 73 in the wire direction. The operating lever 75 extends to one side from the body 71 generally along the wire direction. A first connecting portion 30 is mounted at the end of this extended portion. A pair of wire clamps 70A and 70B are mounted on the covered wire 90 with their respective first connecting portions 30 facing each other.

[0064] The spiral shaft 76 is configured with its axis in the up-down direction and is rotatably supported by the body part 71.

[0065] The cone 77 is a block-shaped component mounted on the upper end of the helical shaft 76. The cone 77 can move vertically relative to the main body 71 via a helical feed that accompanies the rotation of the helical shaft 76. The cone 77 cannot move substantially relative to the main body 71 in the wire direction.

[0066] An inclined surface is formed on the upper surface of the cone portion 77, which approaches the fixed-side grip portion 72 as it gets closer to the first connecting portion 30. Correspondingly, an inclined surface is formed on the lower surface of the operating lever portion 75, which is substantially parallel to the inclined surface. The operating lever portion 75 is positioned on top of the cone portion 77, resulting in the two inclined surfaces contacting each other.

[0067] When the first connecting part 30 is stretched along the direction of the wire away from the main body part 71, the operating lever part 75 rises due to the inclined surface of the cone part 77, pushing the movable side grip part 73 upward. In this way, the distance between the fixed side grip part 72 and the movable side grip part 73 can be reduced.

[0068] The gripping and locking operation part 78 is an annular component fixed to the lower end of the spiral shaft 76. The gripping and locking operation part 78 is configured to be rotatable. Operation of the gripping and locking operation part 78 can be performed, for example, by hooking the operating tool T1, whose upper end is bent into a hook shape. The distance between the fixed-side gripping part 72 and the movable-side gripping part 73 can be widened or narrowed by rotating the spiral shaft 76 together with the gripping and locking operation part 78.

[0069] When the telescopic joint 10 retracts while the pair of wire clamps 70A and 70B are connected via the telescopic joint 10, the operating lever portion 75 of each wire clamp 70A and 70B is stretched towards the center of the telescopic joint 10. In the following description of the wire clamps 70A and 70B, the side closer to the telescopic joint 10 is sometimes referred to as the stretching side. The stretching side may also be referred to as the side where the first connecting portion 30 is provided or the side closer to the telescopic joint 10.

[0070] like Figure 2 as well as Figure 3 As shown, the first connecting portion 30 includes a connecting housing 31. The connecting housing 31 is formed into a generally rectangular block shape. A recess 32 is formed in the connecting housing 31. The recess 32 is formed into a slit shape with a certain front-to-back width. The recess 32 opens the top of the connecting housing 31 and the stretching side. The protrusion 51 of the telescopic portion 10 can be inserted into the recess 32. The protrusion 51 will be described later.

[0071] A guide groove 33 is formed on the inner wall of the recess 32. The guide grooves 33 are arranged in a pair in the front-rear direction, sandwiching the recess 32. The protrusion 52 of the telescopic device 10 can be inserted into each guide groove 33. The protrusion 52 will be described later. Since the pair of guide grooves 33 are essentially the same shape, one of the guide grooves 33 will be described below as an example.

[0072] like Figure 3 As shown, the guide groove 33 is formed as a serrated groove. The upper end PE of the guide groove 33 has an opening on the upper surface of the connecting housing 31.

[0073] like Figure 3 As shown, the guide groove 33 extends briefly downwards from its upper end PE to a fourth position P4, briefly towards the stretching side to a third position P3, then briefly downwards to a second position P2, and then briefly towards the stretching side to a first position P1. The first position P1 is the end of the guide groove 33 furthest from the opening at the upper end PE. A shorter path parallel to the direction of the wire, connecting the first position P1 and the second position P2, is located at the lower end of the guide groove 33. The third position P3 and the fourth position P4 are higher than the first position P1 and the second position P2, but lower than the upper end PE of the guide groove 33.

[0074] At each of the second position P2, the third position P3, and the fourth position P4, the guide groove 33 bends. With the protrusion 52 in the guide groove 33, the guide groove 33 guides the protrusion 52 to move along a multiple-bend path as described above.

[0075] The lower end of the guide groove 33, which includes the first position P1 and the second position P2, is connected to a window that is an external opening in the connecting housing 31. Therefore, the position of the protrusion 52 that has entered the guide groove 33 can be confirmed from the outside through the window.

[0076] like Figure 2 as well as Figure 3 As shown, a vertical through hole 34 is formed at the bottom of the connecting housing 31. The through hole 34 is formed to connect the inner bottom surface of the recess 32 and the bottom surface of the connecting housing 31.

[0077] The upper end of the cylindrical guide tube 35 is fixed to the through hole 34. The guide tube 35 is configured so that its axial direction is vertical. The internal space of the guide tube 35 is open at both the upper and lower ends. The internal space of the guide tube 35 is connected to the internal space of the recess 32.

[0078] A locking sliding member (locking member) 36 is disposed inside the guide cylinder 35. The locking sliding member 36 is a straight, slender cylindrical component. The locking sliding member 36 is configured such that its length direction is vertical.

[0079] The locking sliding member 36 is slidably supported by the guide cylinder 35 in the vertical direction. Furthermore, the locking sliding member 36 is rotatable about the vertical axis.

[0080] The locking sliding member 36 is formed in a stepped shape with a large diameter portion and a small diameter portion. The locking sliding member 36 is configured such that the large diameter portion is on the upper side and the small diameter portion is on the lower side. A spring receiving portion 37 protruding towards the center is formed on the inner wall of the lower end of the guide cylinder 35.

[0081] A force-applying spring (force-applying component) 38 is disposed within the internal space of the guide cylinder 35. The force-applying spring 38 is configured as a helical spring, and the small-diameter portion of the locking sliding component 36 is inserted into the interior of the force-applying spring 38. The force-applying spring 38 is positioned between the spring receiving portion 37 and the large-diameter portion of the locking sliding component 36. The force-applying spring 38 applies upward force to the locking sliding component 36 through its elasticity.

[0082] The lower end of the locking sliding member 36 protrudes downward from the lower end of the guide cylinder 35. The operating ring (operating member) 39 is fixed to the lower end of the locking sliding member 36. The operating ring 39 is positioned below the lower end of the guide groove 33, specifically below the connecting housing 31.

[0083] The elastic force generated by the force-applying spring 38 acts on the operating ring 39 through the locking sliding member 36. Therefore, when no operating force is applied to the operating ring 39, the upper surface of the operating ring 39 contacts the lower surface of the guide cylinder 35. Figure 3 It is stationary in a state of stillness. At this time, as... Figure 2 As shown, the locking sliding member 36 protrudes upward from the inner bottom surface of the recess 32 by an appropriate length. Hereinafter, the position of the locking sliding member 36 at this time will sometimes be referred to as the locking position LP1.

[0084] The operator can suspend the operating tool T1 on the operating ring 39 and pull it down to... Figure 6 As shown, the locking sliding member 36 is lowered. Sometimes, the position where the locking sliding member 36 is retracted downwards and its protrusion into the recess 32 is zero or sufficiently short is called the unlock position LP2.

[0085] like Figure 3 As shown, the lower end of the cylindrical retaining sleeve (retaining member) 40 is fixed to the upper part of the operating ring 39. The retaining sleeve 40 is configured so that its axial direction is vertical. The retaining sleeve 40 is disposed outside the guide sleeve 35. The retaining sleeve 40, the locking sliding member 36, and the guide sleeve 35 are configured such that their central axes coincide. Since the retaining sleeve 40 is fixed to the operating ring 39, when the locking sliding member 36 and the operating ring 39 move vertically, the retaining sleeve 40 also moves integrally. Similarly, when the locking sliding member 36 and the operating ring 39 rotate around their vertical axes, the retaining sleeve 40 also rotates integrally.

[0086] The inner circumferential surface of the retaining cylinder 40 has a pair of elongated moving grooves 41 formed in the vertical direction. Each moving groove 41 opens the center side of the retaining cylinder 40. The pair of moving grooves 41 are symmetrically arranged, sandwiching the center of the retaining cylinder 40. The upper end of each moving groove 41 opens upward.

[0087] A pair of stop pins (restricting protrusions) 42 are formed on the outer peripheral surface of the guide cylinder 35. Each stop pin 42 protrudes outward in the diametrical direction. The pair of stop pins 42 are symmetrically arranged, corresponding to the moving groove 41, and clamp the center of the guide cylinder 35. Each stop pin 42 can enter or exit the moving groove 41.

[0088] The retaining cylinder 40 and the stop pin 42 constitute a retaining mechanism 43 that holds the locking sliding member 36 in the unlocked position LP2.

[0089] Since the guide cylinder 35 also rotates when the operating ring 39 is rotated around the vertical axis, the phase of the moving groove 41 changes. This allows for switching between a state where the phase of the stop pin 42 is aligned with the phase of the moving groove 41 and a state where they are not aligned.

[0090] like Figure 2 or Figure 3 As shown, when the moving groove 41 and the stop pin 42 are in phase, the stop pin 42 can move relative to the moving groove 41 in the vertical direction. Therefore, the operating ring 39 and the locking sliding member 36 can move up and down. When the operating ring 39 is pulled down enough against the force of the force spring 38, the locking sliding member 36 moves to the unlocked position LP2, and at the same time, the stop pin 42 disengages from the moving groove 41 and moves upward. In this state, the retaining cylinder 40 can rotate together with the operating ring 39.

[0091] When the phases of the moving groove 41 and the stop pin 42 are different, for example, as Figure 7As shown, because the stop pin 42 contacts the upper end face of the retaining cylinder 40, the retaining cylinder 40 cannot move upward. Therefore, regardless of the elastic force of the force spring 38, the locking sliding member 36 is held in place. Figure 7 The unlock position is shown as LP2.

[0092] like Figure 1 As shown, the telescopic device 10 includes a rod 11, a telescopic operation part 12, and a wire support part 13.

[0093] The rod 11 is a straight, slender rod-shaped component. A telescopic mechanism (not shown) is provided on the rod 11. The telescopic mechanism can be implemented, for example, by a well-known screw mechanism, but is not limited to this.

[0094] The telescopic operating part 12 is a ring-shaped component. The telescopic operating part 12 is located at the midpoint of the length of the rod 11. The telescopic operating part 12 is configured to be rotatable. The rod 11 can be extended by rotating the telescopic operating part 12 in one direction using the operating tool T1, and the rod 11 can be retracted by rotating the telescopic operating part 12 in the opposite direction.

[0095] The wire support portion 13 is fixed at a suitable position on the pole portion 11. A space is formed inside the wire support portion 13 through which the wrapped wire 90 can pass. An open portion is formed in the wire support portion 13, making it possible to support or remove the wrapped wire 90. The open portion of the wire support portion 13 is configured to be openable and closable; when the open portion is open, the wrapped wire 90 can enter or exit the wire support portion 13. By closing the open portion while the wrapped wire 90 is inside the wire support portion 13, the wrapped wire 90 can be prevented from falling off. When the wrapped wire 90 is cut near the center of the telescopic member 10, the wire support portion 13 can support the cut wire to prevent it from sagging.

[0096] The accompanying drawings show an example where the wire support 13 is formed in a C-shape with one side of the front open. The angle of the wire support 13 can be adjusted about the rod 11. When the protrusion 52 of the telescopic member 10 is inserted into the guide groove 33 of the wire clamps 70A and 70B, the wire support 13 may sometimes encounter the covered wire 90, hindering the movement of the telescopic member 10 and causing poor workability. However, by changing the angle of the wire support 13 to a level where the wire support 13 and the covered wire 90 do not interfere with each other, the connection operation can be performed more easily. After connection, the covered wire 90 is stored inside the wire support 13, and the open part is closed.

[0097] The shape of the wire support portion 13 is arbitrary; for example, it can be configured as a U-shape with the top open. When the wire support portion 13 is U-shaped, with the open portion open, the telescopic member 10 is lifted, allowing the covered wire 90 to enter the wire support portion 13 from above. In this state, the protrusion 52 of the telescopic member 10 can more easily approach the guide grooves 33 of the wire clamps 70A and 70B. After connection, with the covered wire 90 housed within the wire support portion 13, the open portion is closed.

[0098] A second connecting portion 50 is provided at each end of the rod portion 11. One end of the rod portion 11 is connected to a wire clamp 70A on the same side via the second connecting portion 50 and the first connecting portion 30. The opposite end of the rod portion 11 is connected to a wire clamp 70B on the same side via the second connecting portion 50 and the first connecting portion 30. Since the pair of second connecting portions 50 are substantially symmetrically configured, the structure of the second connecting portion 50 connected to one side of the wire clamp 70A will be described below as an example.

[0099] like Figure 2 as well as Figure 3 As shown, the second connecting portion 50 includes a raised portion 51 and a protruding portion 52.

[0100] A raised portion 51 is provided at the end of the rod portion 11 along its length. The raised portion 51 is formed in the shape of a plate and is positioned in its thickness direction in the front-back direction. The raised portion 51 protrudes further from the end of the rod portion 11 along its length direction. The raised portion 51 can be inserted into the recess 32 in the first connecting portion 30.

[0101] The protrusions 52 sandwich the raised portions 51 in a pair arranged in the front-rear direction. One protrusion 52 protrudes forward from the raised portion 51, and the other protrusion 52 protrudes rearward from the raised portion 51. Each protrusion 52 is formed in a cylindrical shape. The central axes of the two protrusions 52 are aligned. The pair of protrusions 52 can be inserted into the pair of guide grooves 33 in the first connecting portion 30.

[0102] The end face 53 of the protruding part 51 is formed into an arc shape. The center of the arc of the end face 53 is approximately aligned with the central axis of the protrusion 52.

[0103] Next, the connection and separation between the first connecting part 30 and the second connecting part 50 will be described. Here, the connection and separation between the telescopic member 10 and the wire clamp 70A will be used as an example for explanation; the connection and separation between the telescopic member 10 and the wire clamp 70B are the same.

[0104] like Figure 3As shown, to connect the first connecting portion 30 and the second connecting portion 50, the protrusion 51 of the second connecting portion 50 is inserted from above into the recess 32 of the first connecting portion 30. Almost simultaneously, the protrusion 52 is inserted from above into the guide groove 33. Figure 3 In the locked state, the force of the spring 38 causes the locking sliding component 36 to be in the locked position LP1.

[0105] As described above, the locking sliding member 36 protrudes upward inside the recess 32. Therefore, as Figure 4 As shown, the bottom surface of the raised portion 51 entering the recess 32 presses downward against the upper surface of the locking sliding member 36. This causes the locking sliding member 36 to drop slightly. Figure 4 The image shows the appearance of the protrusion 52 reaching the fourth position P4 of the guide groove 33.

[0106] Workers from Figure 4 The telescopic member 10 is moved diagonally downward away from the wire clamp 70A. In this way, the protrusion 52 passes through the interior of the guide groove 33 in the order of third position P3, second position P2, and finally moves to the first position P1. Figure 5 This shows the state where the movement of the protrusion 52 has been completed.

[0107] As the protrusion 52 moves from the second position P2 to the first position P1 within the guide groove 33, the raised portion 51, which moves integrally with the protrusion 52, does not face the locking sliding member 36 in the vertical direction. Since the downward pressure on the locking sliding member 36 caused by the raised portion 51 is released, the locking sliding member 36 returns to its original locked position LP1 due to the elastic force of the force-applying spring 38. This completes the connection between the first connecting portion 30 and the second connecting portion 50.

[0108] The connection has been completed. Figure 5 In the locked state, the locking sliding member 36 is located in the locked position LP1. Therefore, the movement of the protrusion 52 from the first position P1 to the second position P2 is impossible because the locking sliding member 36 contacts the end face 53, thus hindering the movement of the raised portion 51. That is, the locking sliding member 36 and the force-applying spring 38 function as a locking mechanism to prevent the protrusion 52 from disengaging from the guide groove 33. Therefore, it is possible to prevent the first connecting portion 30 and the second connecting portion 50 from accidentally separating. The locking of this mechanism is performed automatically when the protrusion 52 reaches the first position P1 of the guide groove 33. Therefore, no special operation by the operator is required for locking.

[0109] The protrusion 52 is cylindrical, while the end in the guide groove 33 corresponding to the first position P1 is arc-shaped. Therefore, with the protrusion 52 in the first position P1, the raised portion 51 can rotate relative to the connecting housing 31 around the first position P1. This means that the telescopic member 10 can change its angle up and down relative to the wire clamp 70A around the first position P1. As a result, since the connecting part is movable like a joint, various operations using the live wire distribution tool 100 become easier. The protruding end face 53 of the raised portion 51 is arc-shaped as described above. Therefore, the locking sliding member 36 will not get stuck when the raised portion 51 rotates.

[0110] An inclined surface 44 is formed on the inner bottom surface of the recess 32, and the inclined surface 44 decreases in height as the device moves from the second position P2 to the first position P1. This expands the range of angle adjustment of the telescopic member 10 relative to the line clamp 70A. (See below...) Figure 10 as well as Figure 13 As shown, the adjustable angle range is defined to include the angle of the telescoping device 10 such that it lowers to the side farther from the wire clamp 70A. Therefore, the operability of the live wire distribution tool 100 is further improved.

[0111] When from Figure 5 When the state causes the first connecting part 30 and the second connecting part 50 to separate, such as Figure 6 As shown, the operator uses the operating tool T1 to pull down the operating ring 39 significantly, and in this state, the operating ring 39 is rotated, for example, by 90 degrees. Figure 7 This state is shown. Then, even if the operating ring 39 is released from the pull, the locking sliding member 36 can be held in the unlocked position LP2 by the retaining mechanism 43.

[0112] Workers from Figure 7 The telescopic member 10 is moved obliquely upwards in a position close to the wire clamp 70A. Since the locking sliding member 36 is in the unlocked position LP2, movement of the protrusion 52 from the first position P1 to the second position P2 is permitted. Thus, the protrusion 52 passes through the interior of the guide groove 33 in the sequence of second position P2, third position P3, and fourth position P4, finally disengaging upwards from the opening at the upper end PE. Almost simultaneously, the raised portion 51 also disengages upwards from the recess 32.

[0113] This completes the separation between the first connecting part 30 and the second connecting part 50. Then, in preparation for the next connection, the operator rotates the operating ring 39 back to its original position. This automatically returns the locking sliding part 36 to the locked position LP1.

[0114] Next, the installation operation of the live wire distribution tool 100 covering the wire 90 during construction work using the live wire distribution tool 100 of this embodiment will be described.

[0115] like Figure 8 As shown, initially, the operator uses the operating tool T2, which has a clamping part at its upper end, to install the wire clamp 70A on one side of the insulated wire 90. At this time, the telescopic member 10 is not connected to the operating lever 75 of the wire clamp 70A. Furthermore, the grip locking operating part 78 is operated in advance, so that the gripping space between the fixed side gripping part 72 and the movable side gripping part 73 is sufficiently expanded. A hole (not shown) forms the opening and closing cover 74 of the wire clamp 70A. By holding this hole with the clamping part of the operating tool T2, the wire clamp 70A is suspended from the upper end of the operating tool T2 via the opening and closing cover 74.

[0116] As described above, a force-applying spring is installed on the opening / closing cover 74. However, the wire clamp 70A is suspended from the upper end of the operating tool T2 via the opening / closing cover 74. Figure 8 In this state, the gravity applied to the main body 71, the fixed-side grip 72, the movable-side grip 73, etc., exceeds the elastic force of the force-applying spring. Therefore, the opening / closing cover 74 rotates upward relative to the outside, opening the grip space. Thus, the covered wire 90 can be placed into the grip space.

[0117] With the wire 90 inside the gripping space, the operating tool T2 is removed from the opening / closing cover 74, as follows: Figure 9 As shown, the wire clamp 70A is suspended by the covered wire 90. Simultaneously with the release of the suspension by the operating tool T2, the opening / closing cover 74 rotates and descends via a force-applying spring, closing the open portion of the gripping space. This prevents the wire clamp 70A from accidentally detaching from the covered wire 90.

[0118] Secondly, such as Figure 10 As shown, the operator uses a tool T3 with a clamping part at the top to lift the telescopic connector 10. In the telescopic connector 10, the telescopic operating part 12 is operated beforehand to fully extend the rod 11. Then, as... Figure 10 As shown by the thick arrow, the operator moves the telescopic connector 10 to connect the second connecting part 50 of the telescopic connector 10 to the first connecting part 30 of the line clamp 70A. The connection method is as follows: Figures 3-5 As explained, since locking is automatically performed by the locking sliding member 36 once the connection is complete, there is no possibility of accidental separation of the telescopic member 10 and the cable clamp 70A afterwards.

[0119] Next, the operator installs the wire clamp 70B on the opposite side onto the covered wire 90. Then, as... Figure 11 As indicated by the thick arrow, the operator uses tool T3 to connect the second connecting part 50 of the expansion joint 10 to the first connecting part 30 of the wire clamp 70B. Since these operations are the same as those for the wire clamp 70A, descriptions are omitted. Next, the wire support part 13 of the expansion joint 10 is installed on the wire sheath 90.

[0120] To achieve this Figure 1 The operator then operates the telescopic operating part 12 of the telescopic device 10 to retract the lever part 11. As a result, because the operating lever part 75 moves closer to the opposite side of the wire gripper 70B or 70A in each wire gripper 70A, the movable side gripping part 73 rises closer to the fixed side gripping part 72 due to the action of the cone part 77. In this way, the covered wire 90 can be gripped by the fixed side gripping part 72 and the movable side gripping part 73. By further retracting the lever part 11, the covered wire 90 can be loosened between the two wire grippers 70A and 70B, making it suitable for cutting and other operations. After the lever part 11 is fully retracted, the operator operates the grip locking operating part 78 with respect to each wire gripper 70A and 70B, causing the spiral shaft 76 to rotate. In this way, the cone 77, which rises via a spiral feed, pushes the movable grip 73 upward via the operating lever 75, thus securing the wire 90. This allows the wire clamps 70A and 70B to be locked in the gripped position.

[0121] When the rod 11 of the telescoping device 10 is retracted, a force is applied to the protrusion 52 in the opposite direction to the direction that moves the protrusion 52 from the first position P1 to the second position P2 in the guide groove 33. Therefore, it is possible to reliably prevent the first connecting part 30 and the second connecting part 50 from accidentally separating.

[0122] Secondly, the removal of tools after the construction work is completed is explained.

[0123] After the construction work is completed, the workers remove the wire support 13 from the insulated wire 90. Next, the workers operate the telescopic operating part 12 of the expansion joint 10 to extend the pole 11 to its original length. Then, as... Figure 12 As shown, the operator pulls down the cable clamp 70B, which has an operating ring 39 to rotate it, so that, when using... Figure 7 As explained, the locking sliding member 36 of the wire clamp 70B is held in the unlocked position LP2.

[0124] Next, as Figure 12 As indicated by the thick arrow, the operator uses tool T3 to move the telescopic member 10, causing the second connecting part 50 to separate from the first connecting part 30 of the wire clamp 70B. The separation method is as follows: Figure 7As already explained.

[0125] Then, as Figure 13 As shown by the thick arrow, the operator uses tool T3 to move the telescopic member 10, causing the second connecting part 50 to separate from the first connecting part 30 of the wire clamp 70A. The separation method is the same as described above.

[0126] The telescopic joint 10, separated from the two wire clamps 70A and 70B, can be lowered and retrieved. Since the weight supported by the operator is only the telescopic joint 10, the strain on the operator's body is reduced. Then, the operator operates the grip locking mechanism 78 on the wire clamp 70A to release the grip lock. Since the extension of the operating lever 75 by the telescopic joint 10 is lost, the grip on the covered wire 90 by the wire clamp 70A is released simultaneously with the release of the grip lock. Next, the operator suspends the wire clamp 70A using the operating tool T2 (via the opening / closing cover 74) to remove it from the covered wire 90 and lower it for retrieval. The wire clamp 70B can also be retrieved by performing the same operation.

[0127] The materials of the wire clamps 70A and 70B and the telescopic member 10 are arbitrary, but from a weight-loss point of view, it is preferable that at least a portion of the wire clamps 70A and 70B and the telescopic member 10 is made of magnesium alloy. For example, the body 71, the fixed-side grip 72, the movable-side grip 73, and the operating lever 75 (including the first connecting part 30) can be made of magnesium alloy for the wire clamps 70A and 70B. For example, the second connecting part 50 can be made of magnesium alloy for the telescopic member 10.

[0128] As described above, the live wire distribution tool 100 of this embodiment includes a telescopic member 10 and wire clamps 70A and 70B. The telescopic member 10 is telescopic. The wire clamps 70A and 70B are capable of holding the wrapped wire 90. The wire clamps 70A and 70B include a first connecting portion 30. The telescopic member 10 includes a second connecting portion 50. The first connecting portion 30 includes a guide groove 33, a locking sliding member 36, and an operating ring 39. The upper end PE of the guide groove 33 is open. The locking sliding member 36 is locked when the first connecting portion 30 and the second connecting portion 50 are connected. The operating ring 39 is operated to release the lock made by the locking sliding member 36. The second connecting portion 50 includes a protrusion 52 that is movable along the guide groove 33. The protrusion 52 is movable inside the guide groove 33 between a first position P1 and a second position P2 in the direction along the wrapped wire 90. Each of the first position P1 and the second position P2 is below the upper end PE of the guide groove 33. The guide groove 33 is formed to connect to the upper end PE at a first position P1 via a second position P2. With the first connecting part 30 and the second connecting part 50 connected, the protrusion 52 is located at the first position P1. The locking sliding member 36 prevents the protrusion 52 from moving from the first position P1 to the second position P2.

[0129] In this way, by separating the first connecting portion 30 and the second connecting portion 50 when installing or removing the live wire distribution tool 100 from the covered wire 90, the weight supported by the operator can be reduced, alleviating physical strain. Since the first connecting portion 30 and the second connecting portion 50 are locked by the locking sliding member 36 once connected, accidental separation can be prevented. Once connected, if the protrusion 52 does not move horizontally from the first position P1, it cannot disengage from the upper end PE of the guide groove 33 via the second position P2. Furthermore, the locking sliding member 36 is configured to prevent the protrusion 52 from moving from the first position P1 to the second position P2. Therefore, it is easier to position the locking member below the first connecting portion 30 compared to a structure that locks the upper end PE of the guide groove 33 with a component. Thus, a layout where the locking can be released without raising the operating tool T1 too high can be more easily achieved. Since it is not necessary to operate the upper end of the guide groove 33 near the PE without using the operating tool T1, the operating tool T1 is unlikely to become an obstacle relative to the protrusion 52 that is to be separated upward from the upper end of the guide groove 33, and the separation operation is relatively smooth.

[0130] In the live wire distribution tool 100 of this embodiment, the locking sliding member 36 is movable between a locked position LP1 and an unlocked position LP2, which is lower than the locked position. The first connecting portion 30 includes a force-applying spring 38, which applies force to the locking sliding member 36 toward the locked position LP1. When the locking sliding member 36 is in the locked position LP1, movement of the protrusion 52 from the first position P1 to the second position P2 is prevented. When the locking sliding member 36 is in the locked position LP2, movement of the protrusion 52 from the first position P1 to the second position P2 is permitted.

[0131] In this way, the locked and unlocked states can be easily switched by moving the locking sliding component 36.

[0132] In the live wire distribution tool 100 of this embodiment, the locking sliding member 36 slides up and down between the locked position LP1 and the unlocked position LP2.

[0133] This simplifies the structure used to move the locking sliding member 36.

[0134] In the live wire distribution tool 100 of this embodiment, the operating ring 39 is positioned below the lower end of the guide groove 33.

[0135] This improves operability because the lock can be released by operating the lower-positioned operating ring 39.

[0136] In the live wire distribution tool 100 of this embodiment, the guide groove 33 is bent between the second position P2 and the upper end PE, and at each of the third position P3 and the fourth position P4.

[0137] In this way, the protrusion 52 located at the first position P1 of the guide groove 33 cannot detach from the upper end PE of the guide groove 33 without passing through the complex-shaped guide groove 33. Therefore, it is possible to reliably prevent the first connecting part 30 and the second connecting part 50 from accidentally separating.

[0138] In the live wire distribution tool 100 of this embodiment, when the protrusion 52 is in the first position P1, the telescopic member 10 can rotate up and down relative to the wire clamp (e.g., wire clamp 70A) that is the object to be connected, with the first position P1 as the center.

[0139] In this way, with the first connecting part 30 and the second connecting part 50 connected, the connecting parts are movable like a joint. Therefore, the operability of the live wire distribution tool 100 is improved.

[0140] In the live wire distribution tool 100 of this embodiment, the first connecting portion 30 includes a recess 32 with an open upper end. The second connecting portion 50 includes a raised portion 51 that can be inserted into the recess 32. The raised portion 52 moves integrally with the raised portion 51. The locking sliding member 36 protrudes into the recess 32 at the locking position LP1. When the locking sliding member 36 is in the locking position LP1, the protruding portion of the locking sliding member 36 into the recess 32 contacts the raised portion 51, thereby preventing the movement of the raised portion 52 from the first position P1 to the second position P2.

[0141] This allows for miniaturization of the first connecting portion 30. Furthermore, since the locking sliding member 36 is a structure that protrudes into the interior of the recess 32, it can protect the locking sliding member 36 from external impacts.

[0142] In the live wire distribution tool 100 of this embodiment, when a force is applied to the telescopic member 10 in the direction of moving away from the wire clamp 70A while the first connecting part 30 and the second connecting part 50 are connected, a force is applied to the protrusion 52 in the opposite direction to the direction that causes the protrusion 52 to move relative to the first position P1 to the second position P2.

[0143] In this way, the force generated by the contraction of the telescoping device 10 can be used to retain the protrusion 52 in the first position P1. Therefore, it is possible to reliably prevent the first connecting part 30 and the second connecting part 50 from accidentally separating.

[0144] The live wire distribution tool 100 of this embodiment includes a retaining mechanism 43, which retains the locking sliding member 36 in the unlocked position LP2.

[0145] This allows the unlocked state to continue without continuously applying operating force to the operating ring 39. Therefore, separating the first connecting part 30 and the second connecting part 50 becomes easier.

[0146] In the live wire distribution tool 100 of this embodiment, the holding mechanism includes a stop pin 42 and a vertically moving groove 41. The locking sliding member 36 moves vertically integrally with the moving groove 41. When the phase of the stop pin 42 and the phase of the moving groove 41 are aligned, the stop pin 42 can move relative to the moving groove 41 within the vertical direction. The state where the phase of the stop pin 42 and the moving groove 41 are aligned and the state where they are not aligned can be switched by rotating the operating ring 39.

[0147] In this way, the presence or absence of the unlocked state held by the holding mechanism 43 can be switched by a simple operation of rotating the operating component.

[0148] In the live wire distribution tool 100 of this embodiment, at least a portion of at least one of the wire clamps 70A, 70B and the telescopic member 10 can be made of magnesium alloy.

[0149] By using magnesium alloy in the materials of wire clamps 70A, 70B, and telescopic connector 10, the weight has been reduced compared to before. As a result, the physical burden on operators during operation is further reduced.

[0150] The preferred embodiments of the present invention have been described above. The above structure can be modified, for example, as follows: either the modification can be performed individually, or multiple modifications can be arbitrarily combined together.

[0151] The guide groove 33 can also replace the serrated shape, forming an L-shape where the second position P2 and the upper end PE are connected by a vertically oriented linear portion. A curved section of the guide groove 33 can also be further provided between the fourth position P4 and the upper end PE.

[0152] like Figure 14 As shown in the modified example, a first connecting portion 30 can also be provided in the telescopic member 10, and a second connecting portion 50 can be provided in the line clamp 70A. In this case, the first connecting portion 30 of the telescopic member 10 is inserted from bottom to top into the second connecting portion 50 of the line clamp 70A for connection.

[0153] exist Figure 14 In a modified example, when the rod portion 11 of the telescoping device 10 is retracted, a force is applied to the guide groove 33 in the opposite direction to the direction that causes the protrusion 52 to move relative to each other from the first position P1 to the second position P2. Therefore, it is possible to reliably prevent the first connecting portion 30 and the second connecting portion 50 from accidentally separating.

[0154] In the retaining mechanism 43, a stop pin 42 protruding towards the center may be provided on the inner circumferential surface of the retaining cylinder 40, and a moving groove 41 that opens the outer circumferential side may be provided on the guide cylinder 35.

[0155] The retaining mechanism 43 can also be omitted.

[0156] The first connecting part 30 and the second connecting part 50 can also be used for the connection structure between one of the pair of line clamps 70A and 70B and the telescopic member 10.

[0157] The locking component can also be moved between the locked and unlocked positions by rotating around the appropriate position.

[0158] The shape of the operating ring 39 can be appropriately changed. For example, an arm-shaped operating component can be provided instead of the operating ring 39.

[0159] The locking sliding member 36 in the locked position can also prevent the protrusion 52 from moving from the first position P1 to the second position P2 by contacting the protrusion 52 instead of contacting the raised part 51.

[0160] [Explanation of Symbols]

[0161] 10. Expansion Joint

[0162] 30 First connecting part

[0163] 32 recess

[0164] 33 Guide groove

[0165] 36. Locking sliding component (locking part)

[0166] 38. Force-applying spring (force-applying component)

[0167] 39. Operating ring (operating component)

[0168] 40 Retaining sleeve (retaining component)

[0169] 41 Moving slot

[0170] 42. Stop pin (restricting protrusion)

[0171] 43. Maintaining the organization

[0172] 50 Second connecting part

[0173] 51. Elevated portion

[0174] 52 convex part

[0175] 70A, 70B cable clamps

[0176] 90-inch insulated wire (electrical cable)

[0177] 100 Live wire distribution tool

[0178] P1 First Position

[0179] P2 Second Position

[0180] LP1 Lock Position

[0181] LP2 Unlock Location

[0182] PE top end.

Claims

1. A live wire distribution tool, characterized in that: The live wire distribution tool includes a telescopic joint and a wire clamp. The telescopic joint is telescopic, and the wire clamp is capable of holding the wire. One of the telescopic device and the line clamp includes a first connecting portion, and the other includes a second connecting portion. The first connecting portion includes a guide groove, a locking component, and an operating component. The upper end of the guide groove is open. The locking component locks the first connecting portion and the second connecting portion into a connected state. The operating component is operated to release the lock created by the locking component. The second connecting portion includes a protrusion that can move along the guide groove. The protrusion is movable within the guide groove between a first position below the upper end and a second position below the upper end in the direction along the wire. The guide groove is formed such that the first position is connected to the upper end via the second position. With the first connecting portion and the second connecting portion connected, the protrusion is located at the first position. The locking component prevents the protrusion from moving from the first position to the second position.

2. The live wire distribution tool according to claim 1, characterized in that: The locking component is movable between a locked position and an unlocked position below the locked position. The first connecting portion includes a force-applying component, which applies force to the locking component toward the locking position. When the locking member is in the locked position, movement of the protrusion from the first position to the second position is prevented. When the locking component is in the unlocked position, movement of the protrusion from the first position to the second position is permitted.

3. The live wire distribution tool according to claim 2, characterized in that: The locking component is capable of sliding up and down between the locked position and the unlocked position.

4. The live wire distribution tool according to claim 2, characterized in that: The operating component is positioned below the lower end of the guide groove.

5. The live wire distribution tool according to claim 1, characterized in that: The guide groove bends more than once between the second position and the upper end.

6. The live wire distribution tool according to claim 1, characterized in that: When the protrusion is in the first position, the telescopic member can rotate up and down relative to the line clamp about the first position.

7. The live wire distribution tool according to claim 1, characterized in that: The locking component is movable between a locked position and an unlocked position below the locked position. The first connecting portion includes a recess that is open at the upper end. The second connecting portion includes a raised portion that can be inserted into the recess. The protrusion and the raised portion move together. The locking member protrudes into the recess in the locked position. When the locking member is in the locked position, the protruding portion of the locking member towards the recess contacts the raised portion, thereby preventing the convex portion from moving from the first position to the second position.

8. The live wire distribution tool according to claim 1, characterized in that: When the first connecting part and the second connecting part are connected, and a force is applied in the direction that separates the telescopic member from the line holder, a force in the opposite direction to the direction that moves the protrusion from the first position to the second position is applied to the protrusion or the guide groove.

9. The live wire distribution tool according to claim 1, characterized in that: The locking component is movable between a locked position and an unlocked position below the locked position. The first connecting portion includes a retaining mechanism that holds the locking component in the unlocked position.

10. The live wire distribution tool according to claim 9, characterized in that: The locking component slides up and down between the locked position and the unlocked position. The retaining mechanism includes a limiting protrusion and a retaining member, the retaining member having a vertically movable groove. When the locking component is in the unlocked position, the rotation of the operating component allows switching between a state where the phase of the moving slot and the phase of the limiting protrusion are aligned and a state where they are not aligned. When the phase of the limiting protrusion and the phase of the moving groove are aligned, the limiting protrusion can move relative to the moving groove in the vertical direction as the locking member moves up and down. When the phase of the limiting protrusion and the phase of the moving groove are not in sync, the locking member is held in the unlocked position by contacting the retaining member through the limiting protrusion.

11. The live wire distribution tool according to claim 1, characterized in that: At least a portion of at least one of the wire clamp and the telescopic member is made of magnesium alloy.

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