WO2020059369A1 - Wire gripper and live line sorting tool using said wire gripper - Google Patents

Wire gripper and live line sorting tool using said wire gripper Download PDF

Info

Publication number
WO2020059369A1
WO2020059369A1 PCT/JP2019/031886 JP2019031886W WO2020059369A1 WO 2020059369 A1 WO2020059369 A1 WO 2020059369A1 JP 2019031886 W JP2019031886 W JP 2019031886W WO 2020059369 A1 WO2020059369 A1 WO 2020059369A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric wire
section
aluminum electric
wire
fitting groove
Prior art date
Application number
PCT/JP2019/031886
Other languages
French (fr)
Japanese (ja)
Inventor
久博 荒木
賢介 水取
秀男 野内
Original Assignee
株式会社永木精機
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社永木精機 filed Critical 株式会社永木精機
Priority to KR1020217007084A priority Critical patent/KR102499968B1/en
Priority to CN201980057138.6A priority patent/CN112689930B/en
Publication of WO2020059369A1 publication Critical patent/WO2020059369A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B25/00—Implements for fastening, connecting or tensioning of wire or strip
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching

Definitions

  • the present invention relates to a gripper and a hot wire sorting tool using the same. More specifically, the present invention relates to a gripper capable of preventing damage to a covering member of an aluminum electric wire when the aluminum electric wire is gripped and drawn to a cutting place, and a live wire sorting tool using the same.
  • both sides of a cut location in the electric wire are grasped by a pair of grippers, respectively.
  • a tensioning tool such as a telescopic rod
  • a conventional gripping device includes an upper gripping body and a lower gripping body as a portion that grips an electric wire from above and below.
  • On the opposing surfaces of the upper gripping body and the lower gripping body grooves each having a semicircular cross section are formed.
  • the electric wire is gripped in a state of being fitted into the respective grooves of the upper gripping body and the lower gripping body.
  • Such a gripper usually has projections (so-called spikes) inside the grooves of the upper gripper and the lower gripper so that the wire does not slip when the wire is gripped and pulled toward the cutting place. Is provided. The spikes dig into the wire to prevent the wire from sliding in the axial direction when grabbing and pulling the wire toward the cutting location.
  • the most widespread copper electric wire among various electric wires has a structure in which a copper wire is covered with a covering member.
  • a copper electric wire is gripped by the wire gripper, the spikes bite into the copper wire inside the covering member, thereby making it possible to reliably prevent slippage when the copper electric wire is drawn.
  • electric wires with aluminum wires which are becoming popular in recent years (hereinafter referred to as aluminum wires) have the advantage of being cheaper and lighter than copper wires, but when spikes dig into aluminum wires, They are more susceptible to damage than copper wires, and may cause electrical effects, such as increased electrical resistance and sparks. Therefore, a gripper having a spike cannot be used to grip the aluminum electric wire.
  • a groove having a semicircular cross-section that is in close contact with the outer peripheral surface of the aluminum electric wire is provided on an opposing surface of the upper gripping body and the lower gripping body. It was formed over the entire length of the lower gripping body.
  • the upper part of the aluminum wire is farthest from the cutting location in the semicircular cross-sectional groove of the upper gripping body. Since the portion is strongly pressed to one point, the upper portion of the aluminum electric wire may damage the covering member of the aluminum electric wire.
  • the present invention provides a gripper capable of preventing damage to a covering member of an aluminum electric wire when the aluminum electric wire is grasped and drawn to a cutting place, and using the same.
  • the purpose of the present invention is to provide a live line sorting tool.
  • the gripper of the present invention is a gripper for an aluminum electric wire that grips an aluminum electric wire in the vicinity of a cutting place in order to cut an aluminum electric wire covered with a covering member by an aluminum wire in a state of being erected in the air.
  • a receiving member formed on the lower surface with a fitting groove fitted into the aluminum electric wire from above, and a cam member arranged on the lower side of the receiving member and having a supporting groove formed on the upper surface for supporting the aluminum electric wire from below.
  • the fitting groove of the receiver has a V-shaped cross section at a first end near the cutting location and a semicircular shape at a second end remote from the cutting location.
  • the fitting groove further comprises: In at least a part of the fitting groove including the second end on the side farther from the cutting place, a semicircular shape is formed from the V-shaped cross-section as approaching the second end on the far side along the fitting groove. It is characterized by having a cross-section changing portion that gradually changes to a cross section.
  • the gripper of the present invention when the aluminum electric wire is gripped near the cutting place in order to cut the aluminum electric wire in a state of being erected in the air, the fitting groove of the receptacle is fitted to the upper portion of the aluminum electric wire. In this state, the lower portion of the aluminum electric wire is fitted into the support groove of the cam member by adjusting the distance between the cam member and the receiver by the space adjusting section in a direction to reduce the distance. As a result, the aluminum electric wire is sandwiched between the cam member and the receiver, and becomes in a gripping state. When the gripper is pulled by the pulling tool in a direction approaching the cutting location, the aluminum wire flexes upward near the cutting location.
  • the gripper swings up and down at the connection portion with the pulling tool, and the cam member and the receiver descend at the ends farther from the cutting place.
  • the upper part of the aluminum electric wire is strongly pressed against the inner surface of the receiving groove.
  • the fitting groove has a V-shaped cross section at a first end closer to the cutting location and a semicircular cross section at a second end farther from the cutting location.
  • a cross-section changing portion that gradually changes from a V-shaped cross-section to a semi-circular cross-section along the fitting groove at at least a portion including the distant second end as approaching the distant second end along the fitting groove.
  • the cross-section changing portion including the second end portion on the far side of the fitting groove is such that the cross section of the fitting groove is semi-circular from the V-shaped cross section toward the second end portion on the far side of the fitting groove. It has a shape that gradually changes to a cross section. Therefore, the supporting state of the upper part of the aluminum electric wire is changed from the state of being supported at two points from both sides in the width direction by the two surfaces of the V-shaped cross section as the distance from the cutting place is increased, by the curved surface of the semicircular cross section. The direction is smoothly changed to a state supported by a wide contact surface. Therefore, even in a portion near the second end on the far side of the fitting groove, it is possible to stably support the aluminum electric wire while suppressing displacement in the axial direction and the width direction.
  • the second end on the far side of the fitting groove is located below the first end, so that the upper end of the aluminum electric wire is the strongest. Pressed.
  • the second end on the far side has a semicircular cross section, even if the upper end of the aluminum electric wire is strongly pressed into the fitting groove, the second end on the far side of the fitting groove is formed. It is possible to disperse and support the force with a wide contact surface in the width direction by the curved surface having a semicircular cross section in the above.
  • the aluminum wire is stably supported not to shift in the axial direction and the width direction over the entire length of the receiving fitting groove, and the aluminum wire is pressed against the second end on the far side of the fitting groove. It is possible to prevent breakage or damage of the covering member of the aluminum electric wire due to the above.
  • an edge of a second end portion on a side of the fitting groove far from a cutting location is chamfered.
  • the semicircular cross section of the second end portion in the fitting groove is formed so as to be deeper than the V-shaped cross section of the first end portion, and the V-shaped cross section in the cross-section change portion
  • the angle of the line extending from the V-shaped cross section to the semi-circular cross section with respect to the line extending the bottom extends from the angle of the deflection of the aluminum electric wire when the aluminum electric wire is drawn to the cutting place. Is preferably set based on the following.
  • the size of the aluminum wire differs depending on the thickness and other conditions when the aluminum wire is drawn to the cutting location. Therefore, in the above-described configuration, the semicircular cross section of the second end of the fitting groove is the same as the V-shaped cross section of the first end so as to correspond to the size of the deflection of the aluminum electric wire.
  • a bottom portion of a portion that gradually changes from a V-shaped cross section to a semicircular cross section with respect to a line that extends a bottom portion of the V-shaped cross section in the cross-section changing portion extends The angle of the wire is set based on the amount of deflection of the aluminum electric wire in a state where the aluminum electric wire is drawn to the cutting place.
  • the receiver is detachably attached to the interval adjuster.
  • the receiver is detachably attached to the interval adjuster.
  • the cam member and the receiver are detachably attached to the interval adjusting section.
  • an electric wire of other material than the aluminum electric wire for example, an electric wire including a copper wire.
  • a cam member and a receiver having spikes (projections) suitable for grasping As a result, the versatility of the gripper is expanded.
  • the hot wire sorting tool of the present invention is to cut the aluminum electric wire covered with the covering member by holding the aluminum electric wire on both sides near the cutting place in order to cut the aluminum electric wire covered with the covering member in the air.
  • a live-line sorting tool that draws from both sides to the cutting place, wherein the gripper is a pair of grippers for gripping the aluminum electric wire on both sides of the cutting place, and the pair of grippers.
  • the pair of grippers configured as above grip both sides of the cutting position of the aluminum electric wire, and each of the pair of grippers approaches the cutting position of the aluminum electric wire by the telescopic bar of the pulling tool. To pull.
  • This makes it possible to easily pull the aluminum electric wire from both sides to the cutting place, and furthermore, to damage the aluminum electric wire covering member at the part gripped by the gripper at both sides of the cutting place in the aluminum electric wire. It is possible to prevent damage.
  • the wire grabber of the present invention and the live wire sorting tool using the same, it is possible to prevent the aluminum wire covering member from being damaged when the aluminum wire is grabbed and drawn to the cutting place.
  • FIG. 1A is a front view
  • FIG. 1B is a front view showing a holder for a 32sq aluminum electric wire in the gripper on the right side of FIG. 1, wherein FIG. 1A is a front view, FIG.
  • FIG. 1B is a bottom view
  • FIG. (D) is a view schematically showing a V-shaped cross section of the first end of the fitting groove
  • (e) is a view of the fitting groove in a cross section taken along line EE of (a).
  • FIG. 7F is a diagram schematically illustrating a cross section of a cross section changing portion
  • FIG. 7F is a diagram schematically illustrating a semicircular cross section of a second end of the fitting groove. It is a figure which shows the cam member in the gripper of the right side of FIG. 1, (a) is a front view, (b) is a top view, (c) is a left view of (a).
  • FIG. 5 is a diagram viewed from the direction of arrow D.
  • FIG. 1 shows a hot wire sorting tool (1) including a gripper (2) for an aluminum electric wire (W) according to an embodiment of the present invention.
  • the hot wire sorting tool (1) shown in FIG. 1 cuts an aluminum electric wire (W) covered with an aluminum wire by a covering member in a state of being erected in the air.
  • the hot-line sorting tool (1) includes a pair of grippers (2) for gripping the aluminum electric wire (W) on both sides of the cutting location (CT) and a pair of grippers (2).
  • the right gripper in FIG. 1 is gripper (2R) and the left gripper is gripped. It is called a wire unit (2L).
  • the pulling tool (3) includes a telescopic bar (3a) that can be extended and retracted, and support portions (3b) provided at both ends of the telescopic bar (3a).
  • the support part (3b) supports the grasping device (2) vertically swingably about a horizontal axis as a rotation center.
  • Each of the pair of grippers (2) is provided with a connection part (7) that can be connected to the support part (3b).
  • the gripper (2) shown in FIGS. 2 and 3 can grip the aluminum electric wire (W) in the vicinity of the cutting place (CT) to cut the aluminum electric wire (W) while being erected in the air. It has a simple configuration. 2 shows a gripper (2R) on the right side of the cutting location (CT), and FIG. 3 shows a gripper (2L) on the left side of the cutting location (CT).
  • CT cutting place
  • FIG. 3 shows a gripper (2L) on the left side of the cutting location
  • the right gripper (2R) and the left gripper (2L) have the same basic configuration, but are symmetric with respect to the cutting location (CT).
  • Each of the grippers (2) shown in FIGS. 2 and 3 has a receiver (4), a cam member (5) arranged below the receiver (4), a receiver (4) and a cam member (5). ), And a connecting portion (7) connected to the supporting portion (3b) (see FIG. 1) of the tensioning tool (3).
  • the gripper (2) can grip the aluminum electric wire (W).
  • the specific configuration of the gripper (2) an example of the receiver (4) of the right gripper (2R), the cam member (5), the interval adjusting unit (6), and the connecting unit (7) This will be described in detail below.
  • the receiver (4) is a metal block-shaped member for receiving the aluminum electric wire from above.
  • a fitting groove (4a) that fits into the aluminum electric wire (W) from above is formed on the lower surface of the receiver (4).
  • 4A and 4B are views showing a holder for a 32sq aluminum electric wire in the gripper on the right side of FIG. 1, wherein FIG. 4A is a front view, FIG. 4B is a bottom view, and FIG. C diagram, (d) is a diagram schematically showing a V-shaped cross section of the first end of the fitting groove, and (e) is a cross-sectional change portion of the fitting groove in the EE line section of (a). (F) is a diagram schematically showing a semicircular cross section of the second end of the fitting groove.
  • the fitting groove (4a) of the receiver (4) has a V-shaped cross section at the first end (4a1) near the cutting location (CT). (See FIG. 4D).
  • the second end (4a2) of the fitting groove (4a) farther from the cutting location (CT) has a semicircular cross section (see FIG. 4 (f)).
  • the fitting groove (4a) extends along the fitting groove (4a) at least in a part of the fitting groove (4a) including the second end (4a2) farther from the cutting position (CT). It has a cross-section change portion (4c) that gradually changes from a V-shaped cross-section to a semi-circular cross-section as it approaches the farthest second end (4a2). Specifically, in the cross-section changing portion (4c) of the fitting groove (4a), as shown in FIG. 4E, the fitting groove (4a) changes from a V-shaped cross section to a semicircular cross section. It gradually changes from below.
  • the range of the cross-section changing portion (4c) may be at least a part including the second end portion (4a2) in the entire length of the fitting groove (4a), and is not particularly limited in the present invention. For example, it is set in a range of about 1/2 to 1/4 of the entire length of the fitting groove (4a). However, the cross-section changing portion (4c) may be formed over the entire length of the fitting groove (4a).
  • the semicircular cross section of the second end (4a2) in the fitting groove (4a) is deeper than the V-shaped cross section of the first end (4a1). It is formed so that it becomes.
  • the angle ⁇ 1 is set based on the magnitude of the deflection of the aluminum electric wire (W) in a state where the aluminum electric wire (W) is drawn to the cutting location (CT).
  • the aluminum wire (W) bends greatly.
  • the deflection amount of the aluminum electric wire (W) is 32 sq.
  • the angle ⁇ 2 is set to about 1 degree in the receiver 4 corresponding to the 120 sq aluminum wire as shown in FIGS. Is done.
  • the edge of the second end (4a2) on the side of the fitting groove (4a) far from the cutting location (CT) is chamfered.
  • the edge of the second end (4a2) on the side far from the cutting location (CT) in the fitting groove (4a) is rounded (so-called R) so that the corner of the edge can be removed.
  • a chamfer (4d) is formed.
  • the chamfered portion (4d) only needs to have a corner at the edge of the fitting groove (4a), and may be a portion (so-called C surface) where the edge of the edge is obliquely cut and removed.
  • the cam member (5) is arranged below the receiver (4), and has a configuration capable of receiving the aluminum electric wire (W) from below.
  • a support groove (5a) for supporting the aluminum electric wire (W) from below is formed on the upper surface of the cam member (5).
  • the support groove (5a) has a V-shaped cross section over the entire length. Therefore, regardless of the thickness of the aluminum electric wire (W), the two surfaces constituting the support groove (5a) can support the electric wire from both sides in the width direction.
  • the inner surface of the support groove (5a) of the cam member (5) is subjected to processing such as thermal spraying of a metal material or the like, so that the aluminum electric wire (W) is cut using the hot wire distribution tool (1). It is possible to prevent the aluminum electric wire (W) from slipping inside the support groove (5a) when drawing to the CT).
  • an insertion groove (5b) is formed on the lower surface of the cam member (5), into which an arrow (6d1) of an interval adjusting portion (6) described later is inserted.
  • the interval adjusting section (6) only needs to have a configuration for adjusting the interval between the cam member (5) and the receiver (4), and the specific configuration of the interval adjusting section is not particularly limited in the present invention.
  • the interval adjusting section (6) shown in FIG. 2 includes a base section (6a), a fixing section (6b) for detachably fixing the receiver (4) to the base section (6a), and a cam member (5). And a pressing portion (6d) for pressing the cam member (5) upwardly, the mounting portion (6c) for attaching the cam member (5) to the base portion (6a) so as to be vertically movable.
  • a fixed part (6b) is attached to the upper part of the base part (6a).
  • the fixing portion (6b) has a mechanism for clamping (clamping) a projection provided on the upper portion of the receiver (4).
  • the receiver (4) can be detachably attached to the base (6a) with the fitting groove (4a) facing downward.
  • the mounting portion (6c) has a shape surrounding the outer periphery of the vertical portion (6a1) extending in the vertical direction of the base portion (6a), and is vertically movable along the vertical portion (6a1).
  • a cam member (5) is detachably attached to the attachment portion (6c) by a bolt or the like. Thereby, the cam member (5) can be disposed so as to be vertically movable below the receiving (4).
  • the pressing part (6d) includes an arrow part (6d1) that can move in the horizontal direction, a wedge part (6d2) that can move in the vertical direction, and a screw part (6d3) that presses the wedge part (6d2) upward.
  • the lower inclined surface (S1) of the arrow (6d1) contacts the upper inclined surface (S2) of the wedge (6d2).
  • the upper part of the arrow part (6d1) is fitted in the insertion groove (5b) of the cam member (5) with some play. Therefore, the horizontal movement of the arrow (6d1) is allowed inside the insertion groove (5b).
  • the screw portion (6d3) is a rod-shaped member having a thread formed on the outer peripheral surface, and is formed on a horizontal portion (6a2) extending horizontally from the lower end of the vertical portion (6a1) of the base portion (6a). It is screwed into a screw hole (not shown). Therefore, by rotating the screw (6d3), the upper end of the screw (6d3) raises the wedge (6d2) and the arrow (6d1). At the same time, the upper portion of the arrow (6d1) lifts the cam member (5) while being inserted into the insertion groove (5b) of the cam member (5). As a result, the cam member (5) can be brought closer to the receiving member (4), and the distance between the receiving member (4) and the cam member (5) can be reduced. (W) can be sandwiched from above and below.
  • the connecting portion (7) is provided with a tensioning tool (3) for pulling the gripper (2) in a direction (P) approaching a cutting position (CT) of the aluminum electric wire (W). It is a portion which can be connected to the support portions (3b) arranged at both ends of the telescopic rod (3a) so as to be vertically swingable.
  • the connecting portion (7) shown in FIG. 2 is provided at the end of the arrow (6d1) of the pressing portion (6d) of the interval adjusting portion (6).
  • the arrow part (6d1) is connected to the telescopic rod (3a) of the pulling tool (3) via the connecting part (7) and the support part (3b). Therefore, when the telescopic rod (3a) is contracted, the arrow (6d1) is drawn together with the connecting part (7) in the direction (P) approaching the cutting location (CT). At this time, the arrow part (6d1) is pushed upward along the upper inclined surface (S2) of the wedge part (6d2).
  • the cam member (5) located above the arrow (6d1) is also pushed upward, so that the force for sandwiching the aluminum electric wire (W) by the receiver (4) and the cam member (5) is increased (so-called It is possible to reliably suppress the sliding of the aluminum electric wire (W) in the axial direction (by retightening).
  • the connecting portion (7) of the present embodiment is provided at an end of the pressing portion (6d) of the interval adjusting portion (6) near the cutting location (CT) of the arrow (6d1) of the pressing portion (6d).
  • CT cutting location
  • the connecting part (7) may be arranged on the base part (6a) or the like.
  • the said distance adjustment part (6) adjusts the space
  • the present invention is not limited to this.
  • the configuration may be such that
  • the fitting groove (4a) of the receiving part (4) is fitted into the upper part of the aluminum electric wire (W).
  • the distance between the cam member (5) and the receiver (4) is adjusted so as to be reduced, and the lower portion of the aluminum electric wire (W) is fitted into the support groove (5a) of the cam member (5).
  • the aluminum electric wire (W) is sandwiched between the cam member (5) and the receiver (4) to be in a gripping state.
  • the gripper (2) When the gripper (2) is pulled in the direction (P) approaching the cutting location (CT) by contracting the telescopic rod (3a) in the tensioning tool (3), the aluminum electric wire (W) is cut. Deflected upward near location (CT). At this time, in response to the deflection, the gripper (2) swings up and down at the connecting portion (7) with the pulling tool (3), and the cam member (5) and the receiver (4) are cut. The end farther from the place (CT) descends. At the same time, the upper part of the aluminum electric wire (W) is strongly pressed against the inner surface of the fitting groove (4a) of the receiver (4).
  • the fitting groove (4a) has a V-shaped cross section at the first end (4a1) near the cutting location (CT) as shown in FIG. 4 (d). As shown, the second end (4a2) remote from the cutting location (CT) has a semicircular cross-section that is deeper than the depth of the V-shaped cross-section of the first end (4a1). As shown in FIGS. 4A and 4E, the fitting groove (4a) has at least a portion including the second end portion (4a2) on the far side of the fitting groove (4a). And a cross-section change portion (4c) that gradually changes from a V-shaped cross-section to a semicircular cross-section as it approaches the second end (4a2) on the far side along the fitting groove (4a).
  • the two surfaces forming the V-shaped cross section are strongly pressed separately onto the upper portion of the aluminum electric wire (W), respectively. It is possible to stably support the aluminum electric wire (W) so as not to be displaced in either the axial direction or the width direction of the aluminum electric wire (W) by sandwiching the aluminum electric wire (W) from both sides in the width direction.
  • the cross section of the groove (4a) has a shape that gradually changes from a V-shaped cross section to a semicircular cross section. Therefore, the supporting state of the upper part of the aluminum electric wire (W) is changed from a state of being supported at two points from both sides in the width direction by two surfaces of the V-shaped cross section as the distance from the cutting place (CT) increases, to a semicircular cross section. Smoothly changes to a state in which it is supported by a wide contact surface in the width direction by the curved surface. Therefore, even in a portion near the second end (4a2) on the far side of the fitting groove (4a), it is possible to stably support the aluminum electric wire (W) while suppressing displacement in the axial direction and the width direction. It is possible.
  • the second end (4a2) on the far side of the fitting groove (4a) is lower than the first end (4a1). , The upper end of the aluminum electric wire (W) is pressed most strongly. However, the second end (4a2) on the far side has a semicircular cross section, so that even if the upper end of the aluminum electric wire (W) is strongly pressed into the fitting groove (4a), the fitting is performed.
  • the curved surface having a semicircular cross section at the second end portion (4a2) on the far side of the groove (4a) makes it possible to support the force while dispersing the force with a wide contact surface in the width direction.
  • the aluminum wire (W) is stably supported along the entire length of the fitting groove (4a) of the receiver (4) so as not to shift in the axial direction and the width direction, and the aluminum wire (W) is supported by the fitting groove (4a). It is possible to prevent the covering member of the aluminum electric wire (W) from being damaged or damaged by being pressed against the second end (4a2) on the far side of (4a).
  • the second end part (4a2) on the side of the fitting groove (4a) far from the cutting location (CT). Is chamfered to form a chamfered portion (4d). Therefore, when the aluminum electric wire (W) is grasped by the grasping device (2) and drawn to the cutting place (CT), the upper part of the aluminum electric wire (W) is cut at the fitting place (4a) of the fitting groove (4a). Even when pressed against the edge of the second end (4a2) remote from the CT), the force is distributed by the wide contact surface formed by the chamfered portion (4d) of the edge. Therefore, breakage or damage of the covering member of the aluminum electric wire (W) due to the contact of the aluminum electric wire (W) with the edge of the fitting groove (4a) can be reliably prevented or suppressed.
  • the fitting of the aluminum electric wire (W) has a shape corresponding to the difference in the size of the deflection when the aluminum electric wire (W) is drawn to the cutting place (CT) depending on the conditions such as the thickness.
  • the groove (4a) has a cross-section changing portion (4c).
  • the second end portion of the fitting groove (4a) corresponds to the size of the deflection of the aluminum electric wire (W).
  • the semicircular cross section of (4a2) is formed to be deeper than the depth of the V-shaped cross section of the first end portion (4a1)
  • the V-shaped cross section of the cross-section changing portion (4c) is formed.
  • the angle ⁇ 1 of the bottom extending line (4f) of the portion that gradually changes from the V-shaped cross section to the semicircular cross section with respect to the bottom extending line (4e) is drawn by the aluminum electric wire (W) to the cutting location (CT). It is set based on the magnitude of the deflection of the aluminum electric wire (W) in the state in which it is set. Thus, when the aluminum electric wire (W) is drawn to the cutting place (CT) and the aluminum electric wire (W) is bent upward, the aluminum electric wire (W) is pressed against the receiver (4). ) Can be distributed and received over the entire cross-section changing portion (4c).
  • the receiver (4) is detachably attached to the fixing portion (6b) of the interval adjusting portion (6). Therefore, it is possible to replace it with a receiver (4) having a fitting groove (4a) corresponding to the thickness of the aluminum electric wire (W).
  • a receiver (4) for a 32 sq aluminum electric wire is attached to the fixing part (6b) of the interval adjusting part (6).
  • a receiver (4) for a 120 sq aluminum electric wire shown in FIG. 6 can be detachably attached to the fixing portion (6b) as a receiver corresponding to a thick aluminum electric wire.
  • the receiver (4) for the 120 sq aluminum electric wire shown in FIG. 6 is fitted by the thickness of the corresponding electric wire as compared with the receiver (4) for the 32 sq aluminum electric wire shown in FIG.
  • the shape of the groove (4a) is slightly different, the other portions can be replaced with the above-mentioned 32sq receiver (4) if they have a common structure.
  • the cam member (5) and the receiver (4) are detachably attached to the interval adjusting section (6). Therefore, it is possible to replace not only the receiver (4) having the fitting groove (4a) corresponding to the thickness of the aluminum electric wire (W), but also an electric wire of other material other than the aluminum electric wire (W), For example, it is possible to replace the cam member (5) and the receiver (4) having spikes (projections) suitable for grasping an electric wire provided with a copper wire. As a result, the versatility of the gripper (2) is expanded.
  • the cutting position (CT) of the aluminum electric wire (W) is cut by the pair of grippers (2) configured as described above.
  • CT cutting position
  • the aluminum electric wire (W) can be easily drawn from both sides to the cutting place (CT).
  • CT cutting place
  • the present invention can be widely used for a gripper for an aluminum electric wire and a hot wire sorting tool using the same, and prevents damage to a covering member of the aluminum electric wire when the aluminum electric wire is gripped and drawn to a cutting place. It is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Cable Installation (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Clamps And Clips (AREA)

Abstract

Provided is a wire gripper (2) that can prevent damage to a covering member of an aluminum electric wire when an aluminum electric wire (W) is gripped and pulled to a cutting location (CT), and a live line sorting tool (1) that uses said wire gripper. The wire gripper comprises: a receiver (4) that has a fitting groove (4a) formed on the bottom surface; a cam member (5); a spacing adjustment unit (6) that adjusts the spacing between the cam member and the receiver; and a linking part (7) that can link the wire gripper to a pulling tool (3) so as to allow swinging in the vertical direction, the pulling tool (3) pulling in the direction of approaching the location where the aluminum electric wire is to be cut. The fitting groove (4a) of the receiver has a V-shaped cross section in a first end part (4a1) at the side near the cutting location, and has a semi-circular cross section in a second end part (4a2) at the side far from the cutting location. Furthermore, at least one part of the fitting groove that includes the second end part on the side far from the cutting location is provided with a cross section change part (4c) that gradually changes from the V-shaped cross section to the semi-circular cross section correspondingly with an increase in proximity to the second end part on the far side along the fitting groove.

Description

掴線器およびそれを用いた活線振り分け工具Grabber and live line sorting tool using it
　本発明は掴線器およびそれを用いた活線振り分け工具に関する。さらに詳しくは、アルミ電線を掴んで切断場所に引き寄せたときのアルミ電線の被覆部材の損傷を防ぐことが可能な掴線器およびそれを用いた活線振り分け工具に関する。 (4) The present invention relates to a gripper and a hot wire sorting tool using the same. More specifically, the present invention relates to a gripper capable of preventing damage to a covering member of an aluminum electric wire when the aluminum electric wire is gripped and drawn to a cutting place, and a live wire sorting tool using the same.
　従来、電柱間などに空中に架設された通電状態の電線（以下、活線という）を所望の場所で切断するために、電線における切断場所の両側の部分を一対の掴線器のそれぞれによってつかみ、これら一対の掴線器を伸縮棒などの引張用工具を用いて互いに近づけることにより、切断場所付近の電線をたわませて、切断することが可能である。 2. Description of the Related Art Conventionally, in order to cut an energized electric wire (hereinafter, referred to as a live wire) installed in the air between electric poles or the like at a desired location, both sides of a cut location in the electric wire are grasped by a pair of grippers, respectively. By bringing the pair of grippers closer to each other using a tensioning tool such as a telescopic rod, it is possible to bend and cut the electric wire near the cutting location.
　従来の掴線器は、例えば、特許文献１に記載されているように、電線を上下から挟んで掴む部分として、上側掴線体と下側掴線体とを備えている。上側掴線体と下側掴線体との対向面には、それぞれ半円形断面の溝が形成されている。上側掴線体をベース部などに固定した状態で、下側掴線体を上方へ移動させることにより、上側掴線体および下側掴線体のそれぞれの溝に嵌合した状態で電線を掴むことができる。
　このような掴線器は、通常、電線を掴んで切断場所の方へ引き寄せる際に電線がすべらないように、上側掴線体と下側掴線体の溝の内部に突起（いわゆる、スパイク）が設けられる。スパイクが電線に食い込むことにより、電線を掴んで切断場所の方へ引き寄せるときに電線が軸方向へすべることを防止している。 As described in Patent Document 1, for example, a conventional gripping device includes an upper gripping body and a lower gripping body as a portion that grips an electric wire from above and below. On the opposing surfaces of the upper gripping body and the lower gripping body, grooves each having a semicircular cross section are formed. By moving the lower gripping body upward with the upper gripping body fixed to the base portion or the like, the electric wire is gripped in a state of being fitted into the respective grooves of the upper gripping body and the lower gripping body. be able to.
Such a gripper usually has projections (so-called spikes) inside the grooves of the upper gripper and the lower gripper so that the wire does not slip when the wire is gripped and pulled toward the cutting place. Is provided. The spikes dig into the wire to prevent the wire from sliding in the axial direction when grabbing and pulling the wire toward the cutting location.
　種々の電線のうち最も普及している銅電線は、銅線が被覆部材で被覆された構造を有している。このような銅電線を掴線器で掴む場合、スパイクが被覆部材内部の銅線まで食い込むことによって銅電線を引き寄せたときのすべりを確実に防ぐことが可能である。
　一方、近年普及しつつあるアルミニウム製の線材を備えた電線（以下、アルミ電線という）は、銅線よりも安価でかつ軽量である利点を有しているが、スパイクがアルミニウム線材に食い込んだときには銅線よりも損傷しやすく、また、電気的な影響、たとえば電気抵抗の増大やスパークなどが生じるおそれがある。そのため、アルミ電線を掴むためにはスパイクを有する掴線器を用いることができない。 The most widespread copper electric wire among various electric wires has a structure in which a copper wire is covered with a covering member. When such a copper electric wire is gripped by the wire gripper, the spikes bite into the copper wire inside the covering member, thereby making it possible to reliably prevent slippage when the copper electric wire is drawn.
On the other hand, electric wires with aluminum wires, which are becoming popular in recent years (hereinafter referred to as aluminum wires), have the advantage of being cheaper and lighter than copper wires, but when spikes dig into aluminum wires, They are more susceptible to damage than copper wires, and may cause electrical effects, such as increased electrical resistance and sparks. Therefore, a gripper having a spike cannot be used to grip the aluminum electric wire.
　従来では、アルミ電線をスパイク無しで掴むために、上側掴線体と下側掴線体の対向面にアルミ電線の外周面にぴったり接触するような半円形断面の溝をこれら上側掴線体および下側掴線体の全長にわたって形成していた。
　しかし、アルミ電線を両側から切断場所へ引き寄せて上方にたわんだときに、アルミ電線の上側部分が上側掴線体の半円形断面の溝のうち切断場所から遠い端部では、溝の最も奥の部分に一点に集中して強く押し当てられるので、アルミ電線の上側部分がアルミ電線の被覆部材を破損するおそれがある。 Conventionally, in order to grip an aluminum electric wire without a spike, a groove having a semicircular cross-section that is in close contact with the outer peripheral surface of the aluminum electric wire is provided on an opposing surface of the upper gripping body and the lower gripping body. It was formed over the entire length of the lower gripping body.
However, when the aluminum wire is pulled from both sides to the cutting location and bent upwards, the upper part of the aluminum wire is farthest from the cutting location in the semicircular cross-sectional groove of the upper gripping body. Since the portion is strongly pressed to one point, the upper portion of the aluminum electric wire may damage the covering member of the aluminum electric wire.
　そこで、アルミ電線にかかる応力を分散するために、上側掴線体の溝をＶ字形状にし、アルミ電線を切断場所に引き寄せたときにアルミ電線の上側部分にかかる応力を分散することが考えられる。しかし、その場合も、上側掴線体のＶ字状の溝のうち切断場所から遠い端部におけるアルミ電線の被覆部材の破損を防止することができなかった。 Therefore, in order to disperse the stress applied to the aluminum electric wire, it is conceivable to make the groove of the upper gripping body V-shaped and disperse the stress applied to the upper portion of the aluminum electric wire when the aluminum electric wire is drawn to the cutting place. . However, also in this case, it was not possible to prevent the damage of the covering member of the aluminum electric wire at the end of the V-shaped groove of the upper gripping body far from the cutting position.
特開２０１４－１２８１８号公報JP 2014-12818 A
　本発明は、上記したような従来技術の問題点を解決すべく、アルミ電線を掴んで切断場所に引き寄せたときのアルミ電線の被覆部材の損傷を防ぐことが可能な掴線器およびそれを用いた活線振り分け工具を提供することを目的とする。 SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention provides a gripper capable of preventing damage to a covering member of an aluminum electric wire when the aluminum electric wire is grasped and drawn to a cutting place, and using the same. The purpose of the present invention is to provide a live line sorting tool.
　本発明の掴線器は、アルミニウム製の線材が被覆部材によって被覆されたアルミ電線を空中に架設された状態で切断するために切断場所の近傍でアルミ電線を掴むアルミ電線用の掴線器であって、前記アルミ電線に上方から嵌まる嵌合溝が下面に形成された受けと、前記受けの下側に配置され、アルミ電線を下方から支持する支持溝が上面に形成されたカム部材と、前記カム部材と受けとの間隔を調整する間隔調整部と、前記掴線器をアルミ電線の切断場所へ近づく方向へ引っ張る引張用工具に対して上下方向に揺動自在に連結可能な連結部とを備えており、前記受けの前記嵌合溝は、前記切断場所に近い側の第１端部においてＶ字状の断面を有し、前記切断場所に遠い側の第２端部において半円形の断面を有し、さらに、前記嵌合溝は、当該嵌合溝のうち切断場所に遠い側の第２端部を含む少なくとも一部において、前記嵌合溝に沿って前記遠い側の第２端部に近づくにつれてＶ字状の断面から半円形の断面へ徐々に変化する断面変化部を有することを特徴とする。 The gripper of the present invention is a gripper for an aluminum electric wire that grips an aluminum electric wire in the vicinity of a cutting place in order to cut an aluminum electric wire covered with a covering member by an aluminum wire in a state of being erected in the air. A receiving member formed on the lower surface with a fitting groove fitted into the aluminum electric wire from above, and a cam member arranged on the lower side of the receiving member and having a supporting groove formed on the upper surface for supporting the aluminum electric wire from below. An interval adjusting portion for adjusting an interval between the cam member and the receiving portion, and a connecting portion capable of being vertically swingably connected to a pulling tool for pulling the gripper in a direction approaching the cutting position of the aluminum electric wire. Wherein the fitting groove of the receiver has a V-shaped cross section at a first end near the cutting location and a semicircular shape at a second end remote from the cutting location. Has a cross-section, and the fitting groove further comprises: In at least a part of the fitting groove including the second end on the side farther from the cutting place, a semicircular shape is formed from the V-shaped cross-section as approaching the second end on the far side along the fitting groove. It is characterized by having a cross-section changing portion that gradually changes to a cross section.
　本発明の掴線器では、アルミ電線を空中に架設された状態で切断するために切断場所の近傍でアルミ電線を掴む場合には、受けの嵌合溝をアルミ電線の上側部分に嵌合させ、その状態で、間隔調整部によって、カム部材と受けとの間隔を狭める方向に調整することにより、アルミ電線の下側部分をカム部材の支持溝に嵌合させる。これにより、アルミ電線は、カム部材と受けとの間に挟持され、掴線状態になる。
　掴線器が引張用工具によって切断場所に近づく方向へ引っ張られたときには、アルミ電線が切断場所近傍で上方にたわむ。このとき、たわみに対応して、掴線器は、引張用工具との連結部において上下方向に揺動し、カム部材および受けは切断場所から遠い側の端部が下降する。それとともに、アルミ電線の上側の部分が受けの嵌合溝の内面に強く押し付けられる。 In the gripper of the present invention, when the aluminum electric wire is gripped near the cutting place in order to cut the aluminum electric wire in a state of being erected in the air, the fitting groove of the receptacle is fitted to the upper portion of the aluminum electric wire. In this state, the lower portion of the aluminum electric wire is fitted into the support groove of the cam member by adjusting the distance between the cam member and the receiver by the space adjusting section in a direction to reduce the distance. As a result, the aluminum electric wire is sandwiched between the cam member and the receiver, and becomes in a gripping state.
When the gripper is pulled by the pulling tool in a direction approaching the cutting location, the aluminum wire flexes upward near the cutting location. At this time, in response to the deflection, the gripper swings up and down at the connection portion with the pulling tool, and the cam member and the receiver descend at the ends farther from the cutting place. At the same time, the upper part of the aluminum electric wire is strongly pressed against the inner surface of the receiving groove.
　嵌合溝は、切断場所に近い側の第１端部においてＶ字状の断面を有し、切断場所に遠い側の第２端部において半円形の断面を有し、当該嵌合溝のうち遠い側の第２端部を含む少なくとも一部において、前記嵌合溝に沿って前記遠い側の第２端部に近づくにつれてＶ字状の断面から半円形の断面へ徐々に変化する断面変化部を有する。
　したがって、嵌合溝における切断場所に近い部分では、Ｖ字状の断面を構成する２つの面がアルミ電線の上側の部分にそれぞれ別個に強く押し当てられることによって、アルミ電線を幅方向両側から挟んでアルミ電線の軸方向および幅方向のいずれにもずれないように安定して支持することが可能である。 The fitting groove has a V-shaped cross section at a first end closer to the cutting location and a semicircular cross section at a second end farther from the cutting location. A cross-section changing portion that gradually changes from a V-shaped cross-section to a semi-circular cross-section along the fitting groove at at least a portion including the distant second end as approaching the distant second end along the fitting groove. Having.
Therefore, in the portion of the fitting groove near the cutting location, the two surfaces forming the V-shaped cross section are strongly pressed separately onto the upper portion of the aluminum electric wire, thereby sandwiching the aluminum electric wire from both sides in the width direction. Thus, the aluminum electric wire can be stably supported so as not to be displaced in either the axial direction or the width direction.
　また、嵌合溝のうち遠い側の第２端部を含む断面変化部は、嵌合溝の遠い側の第２端部に近づくにつれて嵌合溝の断面がＶ字状の断面から半円形の断面へ徐々に変化する形状を有する。そのため、アルミ電線の上側の部分の支持状態は、切断場所から離れるにつれてＶ字状の断面の２つの面によって幅方向両側から２点で支持される状態から半円形の断面の湾曲した面によって幅方向に広い接触面で支持される状態へ円滑に変化している。そのため、嵌合溝の遠い側の第２端部に近い部分においても、アルミ電線をその軸方向および幅方向へのずれを抑えながら安定して支持することが可能である。 In addition, the cross-section changing portion including the second end portion on the far side of the fitting groove is such that the cross section of the fitting groove is semi-circular from the V-shaped cross section toward the second end portion on the far side of the fitting groove. It has a shape that gradually changes to a cross section. Therefore, the supporting state of the upper part of the aluminum electric wire is changed from the state of being supported at two points from both sides in the width direction by the two surfaces of the V-shaped cross section as the distance from the cutting place is increased, by the curved surface of the semicircular cross section. The direction is smoothly changed to a state supported by a wide contact surface. Therefore, even in a portion near the second end on the far side of the fitting groove, it is possible to stably support the aluminum electric wire while suppressing displacement in the axial direction and the width direction.
　また、アルミ電線が切断場所で上方にたわんだ状態では、嵌合溝の遠い側の第２端部は、第１端部よりも下方に位置するので、アルミ電線の上側の端部が最も強く押し付けられる。しかし、遠い側の第２端部は、半円形の断面になっているので、アルミ電線の上側の端部が強く嵌合溝に押し付けられても、嵌合溝の遠い側の第２端部における半円形の断面の湾曲した面によって幅方向に広い接触面で力を分散しながら支持することが可能である。 In addition, when the aluminum electric wire is bent upward at the cutting place, the second end on the far side of the fitting groove is located below the first end, so that the upper end of the aluminum electric wire is the strongest. Pressed. However, since the second end on the far side has a semicircular cross section, even if the upper end of the aluminum electric wire is strongly pressed into the fitting groove, the second end on the far side of the fitting groove is formed. It is possible to disperse and support the force with a wide contact surface in the width direction by the curved surface having a semicircular cross section in the above.
　その結果、受けの嵌合溝の全長にわたってアルミ電線を軸方向および幅方向にずれないように安定して支持し、かつ、アルミ電線が嵌合溝の遠い側の第２端部に押し付けられることによるアルミ電線の被覆部材の破損や損傷を防ぐことが可能である。 As a result, the aluminum wire is stably supported not to shift in the axial direction and the width direction over the entire length of the receiving fitting groove, and the aluminum wire is pressed against the second end on the far side of the fitting groove. It is possible to prevent breakage or damage of the covering member of the aluminum electric wire due to the above.
　前記受けでは、前記嵌合溝における切断場所に遠い側の第２端部の縁が面取りされているのが好ましい。
　かかる構成により、アルミ電線が掴線器によって掴まれて切断場所へ引き寄せられたときに、アルミ電線の上側の部分が嵌合溝の切断場所に遠い側の第２端部の縁に押しつけられても、当該縁が面取りされることによって形成された広い接触面によって力が分散する。そのため、アルミ電線が嵌合溝の縁との接触によるアルミ電線の被覆部材の破損や損傷を確実に防止または抑制することが可能である。 In the receiving device, it is preferable that an edge of a second end portion on a side of the fitting groove far from a cutting location is chamfered.
With such a configuration, when the aluminum electric wire is gripped by the wire gripper and pulled to the cutting location, the upper portion of the aluminum electric wire is pressed against the edge of the second end far from the cutting location of the fitting groove. Also, the force is distributed by the wide contact surface formed by chamfering the edge. Therefore, it is possible to reliably prevent or suppress breakage or damage of the covering member of the aluminum electric wire due to the contact of the aluminum electric wire with the edge of the fitting groove.
　前記嵌合溝における前記第２端部の半円形の断面は、前記第１端部のＶ字状の断面の深さよりも深くなるように形成され、前記断面変化部における前記Ｖ字状の断面の底部が延びる線に対するＶ字状の断面から半円形の断面へ徐々に変化する部分の底部が延びる線の角度は、前記アルミ電線が切断場所に引き寄せられた状態におけるアルミ電線のたわみの大きさに基づいて設定されているのが好ましい。 The semicircular cross section of the second end portion in the fitting groove is formed so as to be deeper than the V-shaped cross section of the first end portion, and the V-shaped cross section in the cross-section change portion The angle of the line extending from the V-shaped cross section to the semi-circular cross section with respect to the line extending the bottom extends from the angle of the deflection of the aluminum electric wire when the aluminum electric wire is drawn to the cutting place. Is preferably set based on the following.
　アルミ電線は太さなどの条件によってはアルミ電線が切断場所に引き寄せられたときのたわみの大きさが異なる。そこで、このアルミ電線のたわみの大きさに対応するように、上記の構成では、前記嵌合溝における前記第２端部の半円形の断面は、前記第１端部のＶ字状の断面の深さよりも深くなるように形成された構成において、前記断面変化部における前記Ｖ字状の断面の底部が延びる線に対するＶ字状の断面から半円形の断面へ徐々に変化する部分の底部が延びる線の角度は、前記アルミ電線が切断場所に引き寄せられた状態におけるアルミ電線のたわみの大きさに基づいて設定されている。それにより、アルミ電線を切断場所に引き寄せたときにアルミ電線が上方にたわんだ状態ではアルミ電線は受けに押し付けられるが、アルミ電線が受けに押し付けられる力を、断面変化部の全体にわたって分散して受けることが可能になる。その結果、嵌合溝の遠い側の第２端部に力が集中することを確実に防ぐことが可能になり、当該嵌合溝の遠い側の第２端部におけるアルミ電線の被覆部材の破損や損傷をより一層確実に抑制することが可能である。 The size of the aluminum wire differs depending on the thickness and other conditions when the aluminum wire is drawn to the cutting location. Therefore, in the above-described configuration, the semicircular cross section of the second end of the fitting groove is the same as the V-shaped cross section of the first end so as to correspond to the size of the deflection of the aluminum electric wire. In a configuration formed so as to be deeper than the depth, a bottom portion of a portion that gradually changes from a V-shaped cross section to a semicircular cross section with respect to a line that extends a bottom portion of the V-shaped cross section in the cross-section changing portion extends The angle of the wire is set based on the amount of deflection of the aluminum electric wire in a state where the aluminum electric wire is drawn to the cutting place. As a result, when the aluminum wire is pulled upward to the cutting place and the aluminum wire is bent upward, the aluminum wire is pressed against the receiver, but the force of pressing the aluminum wire against the receiver is distributed over the entire cross-section changing portion. It will be possible to receive. As a result, it is possible to reliably prevent the force from being concentrated on the second end on the far side of the fitting groove, and to damage the covering member of the aluminum electric wire at the second end on the far side of the fitting groove. And damage can be more reliably suppressed.
　前記受けは、前記間隔調整部に着脱自在に取り付けられているのが好ましい。かかる構成により、前記アルミ電線の太さに対応する嵌合溝を有する前記受けに交換することが可能である。 受 け Preferably, the receiver is detachably attached to the interval adjuster. With such a configuration, it is possible to replace the aluminum wire with the receiver having a fitting groove corresponding to the thickness of the aluminum wire.
　前記カム部材および前記受けは、前記間隔調整部に着脱自在に取り付けられているのが好ましい。かかる構成により、前記アルミ電線の太さに対応する嵌合溝を有する前記受けに交換することが可能であるだけでなく、アルミ電線以外の他の材質の電線、例えば銅線を備えた電線を掴むことに適したスパイク（突起）を有するカム部材および受けに交換することが可能である。その結果、掴線器の汎用性が広がる。 It is preferable that the cam member and the receiver are detachably attached to the interval adjusting section. With such a configuration, it is possible to replace not only the receiver having the fitting groove corresponding to the thickness of the aluminum electric wire, but also an electric wire of other material than the aluminum electric wire, for example, an electric wire including a copper wire. It is possible to exchange for a cam member and a receiver having spikes (projections) suitable for grasping. As a result, the versatility of the gripper is expanded.
　本発明の活線振り分け工具は、アルミニウム製の線材が被覆部材によって被覆されたアルミ電線を空中に架設された状態で切断するために切断場所の近傍の両側でアルミ電線を掴んで当該アルミ電線を当該切断場所へ両側から引き寄せる活線振り分け工具であって、上記記載の掴線器であって、前記切断場所の両側で前記アルミ電線を掴む一対の掴線器と、前記一対の掴線器のそれぞれをアルミ電線の切断場所へ近づく方向へ引っ張る引張用工具とを備え、前記引張用工具は、伸縮自在の伸縮棒を備えており、　前記一対の掴線器のそれぞれの前記連結部が前記伸縮棒の両端部に連結されることにより、当該一対の掴線器は、前記伸縮棒に対して上下方向に揺動自在に連結されていることを特徴とする。 The hot wire sorting tool of the present invention is to cut the aluminum electric wire covered with the covering member by holding the aluminum electric wire on both sides near the cutting place in order to cut the aluminum electric wire covered with the covering member in the air. A live-line sorting tool that draws from both sides to the cutting place, wherein the gripper is a pair of grippers for gripping the aluminum electric wire on both sides of the cutting place, and the pair of grippers. A pulling tool for pulling each of them in a direction approaching the cutting position of the aluminum electric wire, wherein the pulling tool has an extendable telescopic rod; and By being connected to both ends of the bar, the pair of grippers are connected to the telescopic bar so as to be vertically swingable.
　かかる構成により、上記のように構成された一対の掴線器によってアルミ電線の切断場所の両側を掴み、引張用工具の伸縮棒によって一対の掴線器のそれぞれをアルミ電線の切断場所へ近づく方向へ引っ張る。これにより、アルミ電線を切断場所へ両側から容易に引き寄せることが可能であり、しかも、アルミ電線における切断場所の両側の部分では掴線器によって掴まれている部分におけるアルミ電線の被覆部材の破損や損傷を防ぐことが可能である。 With this configuration, the pair of grippers configured as above grip both sides of the cutting position of the aluminum electric wire, and each of the pair of grippers approaches the cutting position of the aluminum electric wire by the telescopic bar of the pulling tool. To pull. This makes it possible to easily pull the aluminum electric wire from both sides to the cutting place, and furthermore, to damage the aluminum electric wire covering member at the part gripped by the gripper at both sides of the cutting place in the aluminum electric wire. It is possible to prevent damage.
　本発明の掴線器およびそれを用いた活線振り分け工具によれば、アルミ電線を掴んで切断場所に引き寄せたときのアルミ電線の被覆部材の損傷を防ぐことができる。 According to the wire grabber of the present invention and the live wire sorting tool using the same, it is possible to prevent the aluminum wire covering member from being damaged when the aluminum wire is grabbed and drawn to the cutting place.
本発明の実施形態に係る掴線器が伸縮棒の左右両側に連結された活線振り分け工具の正面図である。It is a front view of the hot-line sorting tool with which the gripper which concerns on embodiment of this invention was connected with the left-right both sides of the expansion-contraction rod. 図１の右側の掴線器を示す図であって、（ａ）は正面図、（ｂ）は（ａ）の掴線器を矢印Ａ方向から見た図である。It is a figure which shows the gripper of the right side of FIG. 1, (a) is a front view, (b) is the figure which looked at the gripper of (a) from arrow A direction. 図１の左側の掴線器を示す図であって、（ａ）は正面図、（ｂ）は（ａ）の掴線器を矢印Ｂ方向から見た図である。It is a figure which shows the gripper of the left side of FIG. 1, (a) is a front view, (b) is the figure which looked at the gripper of (a) from arrow B direction. 図１の右側の掴線器における３２ｓｑアルミ電線用の受けを示す図であって、（ａ）は正面図、（ｂ）は底面図、（ｃ）は（ａ）の掴線器を矢印Ｃ方向から見た図、（ｄ）は嵌合溝の第１端部のＶ字状の断面を模式的に示した図、（ｅ）は（ａ）のＥ－Ｅ線断面における嵌合溝の断面変化部の断面を模式的に示した図、（ｆ）は嵌合溝の第２端部の半円形の断面を模式的に示した図である。2A and 2B are views showing a holder for a 32sq aluminum electric wire in the gripper on the right side of FIG. 1, wherein FIG. 1A is a front view, FIG. 1B is a bottom view, and FIG. (D) is a view schematically showing a V-shaped cross section of the first end of the fitting groove, and (e) is a view of the fitting groove in a cross section taken along line EE of (a). FIG. 7F is a diagram schematically illustrating a cross section of a cross section changing portion, and FIG. 7F is a diagram schematically illustrating a semicircular cross section of a second end of the fitting groove. 図１の右側の掴線器におけるカム部材を示す図であって、（ａ）は正面図、（ｂ）は平面図、（ｃ）は（ａ）の左側面図である。It is a figure which shows the cam member in the gripper of the right side of FIG. 1, (a) is a front view, (b) is a top view, (c) is a left view of (a). 図１の右側の掴線器に取付け可能な１２０ｓｑアルミ電線用の受けを示す図であって、（ａ）は正面図、（ｂ）は底面図、（ｃ）は（ａ）の掴線器を矢印Ｄ方向から見た図である。It is a figure which shows the receiver for 120sq aluminum electric wires which can be attached to the gripper on the right side of FIG. 1, (a) is a front view, (b) is a bottom view, (c) is the gripper of (a). FIG. 5 is a diagram viewed from the direction of arrow D.
　つぎに図面を参照しながら本発明の掴線器およびそれを用いた活線振り分け工具の実施形態についてさらに詳細に説明する。
　図１には、本発明の実施形態に係るアルミ電線（Ｗ）用の掴線器（２）を備えた活線振り分け工具（１）が示されている。 Next, with reference to the drawings, embodiments of a wire grabber of the present invention and a live wire sorting tool using the same will be described in more detail.
FIG. 1 shows a hot wire sorting tool (1) including a gripper (2) for an aluminum electric wire (W) according to an embodiment of the present invention.
　図１に示される活線振り分け工具（１）は、アルミニウム製の線材が被覆部材によって被覆されたアルミ電線（Ｗ）を空中に架設された状態で切断するために、切断場所（ＣＴ）の近傍の両側でアルミ電線（Ｗ）を掴んで当該アルミ電線（Ｗ）を当該切断場所（ＣＴ）へ両側から引き寄せるための工具（１）である。
　具体的には、活線振り分け工具（１）は、切断場所（ＣＴ）の両側でアルミ電線（Ｗ）を掴む一対の掴線器（２）と、一対の掴線器（２）のそれぞれをアルミ電線（Ｗ）の切断場所（ＣＴ）へ近づく方向（Ｐ）へ引っ張る引張用工具（３）とを備える。なお、一対の掴線器（２）について左右いずれかの掴線器を特定して呼ぶ場合には、図１の右側の掴線器を掴線器（２Ｒ）、左側の掴線器を掴線器（２Ｌ）と呼ぶ。 The hot wire sorting tool (1) shown in FIG. 1 cuts an aluminum electric wire (W) covered with an aluminum wire by a covering member in a state of being erected in the air. Is a tool (1) for grasping the aluminum electric wire (W) on both sides of the device and drawing the aluminum electric wire (W) to the cutting place (CT) from both sides.
Specifically, the hot-line sorting tool (1) includes a pair of grippers (2) for gripping the aluminum electric wire (W) on both sides of the cutting location (CT) and a pair of grippers (2). A pulling tool (3) for pulling the aluminum electric wire (W) in a direction (P) approaching the cutting place (CT). In the case where one of the left and right grippers is specified and called for the pair of grippers (2), the right gripper in FIG. 1 is gripper (2R) and the left gripper is gripped. It is called a wire unit (2L).
　引張用工具（３）は、伸縮自在の伸縮棒（３ａ）と、伸縮棒（３ａ）両端部に設けられた支持部（３ｂ）とを備えている。
　支持部（３ｂ）は、水平軸を回転中心として掴線器（２）を上下方向に揺動自在に支持する。一対の掴線器（２）のそれぞれには、支持部（３ｂ）に連結可能な連結部（７）が設けられている。 The pulling tool (3) includes a telescopic bar (3a) that can be extended and retracted, and support portions (3b) provided at both ends of the telescopic bar (3a).
The support part (3b) supports the grasping device (2) vertically swingably about a horizontal axis as a rotation center. Each of the pair of grippers (2) is provided with a connection part (7) that can be connected to the support part (3b).
　図２～３に示される掴線器（２）は、アルミ電線（Ｗ）を空中に架設された状態で切断するために切断場所（ＣＴ）の近傍でアルミ電線（Ｗ）を掴むことが可能な構成を有する。なお、図２には切断場所（ＣＴ）の右側の掴線器（２Ｒ）が示され、図３には切断場所（ＣＴ）の左側の掴線器（２Ｌ）が示されている。これら右側の掴線器（２Ｒ）と左側の掴線器（２Ｌ）とは、基本的な構成は同じであるが、切断場所（ＣＴ）に対して対称形をしている。 The gripper (2) shown in FIGS. 2 and 3 can grip the aluminum electric wire (W) in the vicinity of the cutting place (CT) to cut the aluminum electric wire (W) while being erected in the air. It has a simple configuration. 2 shows a gripper (2R) on the right side of the cutting location (CT), and FIG. 3 shows a gripper (2L) on the left side of the cutting location (CT). The right gripper (2R) and the left gripper (2L) have the same basic configuration, but are symmetric with respect to the cutting location (CT).
　図２～３に示される掴線器（２）は、いずれも、受け（４）と、受け（４）の下方に配置されたカム部材（５）と、受け（４）とカム部材（５）との間隔を調整する間隔調整部（６）と、上記の引張用工具（３）の支持部（３ｂ）（図１参照）に連結される連結部（７）とを備えている。上下に配置された受け（４）とカム部材（５）との間にアルミ電線（Ｗ）を挟むことによって、掴線器（２）は当該アルミ電線（Ｗ）を掴むことが可能である。
　以下、掴線器（２）の具体的な構成について、右側の掴線器（２Ｒ）の受け（４）、カム部材（５）、間隔調整部（６）、および連結部（７）を例に挙げて説明する。 Each of the grippers (2) shown in FIGS. 2 and 3 has a receiver (4), a cam member (5) arranged below the receiver (4), a receiver (4) and a cam member (5). ), And a connecting portion (7) connected to the supporting portion (3b) (see FIG. 1) of the tensioning tool (3). By holding the aluminum electric wire (W) between the upper and lower receivers (4) and the cam member (5), the gripper (2) can grip the aluminum electric wire (W).
Hereinafter, regarding the specific configuration of the gripper (2), an example of the receiver (4) of the right gripper (2R), the cam member (5), the interval adjusting unit (6), and the connecting unit (7) This will be described in detail below.
　受け（４）は、アルミ電線を上方から受けるための金属製のブロック状の部材である。受け（４）の下面には、アルミ電線（Ｗ）に上方から嵌まる嵌合溝（４ａ）が形成されている。
　図４は、図１の右側の掴線器における３２ｓｑアルミ電線用の受けを示す図であって、（ａ）は正面図、（ｂ）は底面図、（ｃ）は（ａ）の矢視Ｃ図、（ｄ）は嵌合溝の第１端部のＶ字状の断面を模式的に示した図、（ｅ）は（ａ）のＥ－Ｅ線断面における嵌合溝の断面変化部の断面を模式的に示した図、（ｆ）は嵌合溝の第２端部の半円形の断面を模式的に示した図である。 The receiver (4) is a metal block-shaped member for receiving the aluminum electric wire from above. A fitting groove (4a) that fits into the aluminum electric wire (W) from above is formed on the lower surface of the receiver (4).
4A and 4B are views showing a holder for a 32sq aluminum electric wire in the gripper on the right side of FIG. 1, wherein FIG. 4A is a front view, FIG. 4B is a bottom view, and FIG. C diagram, (d) is a diagram schematically showing a V-shaped cross section of the first end of the fitting groove, and (e) is a cross-sectional change portion of the fitting groove in the EE line section of (a). (F) is a diagram schematically showing a semicircular cross section of the second end of the fitting groove.
　図４（ａ）～（ｆ）に示されるように、受け（４）の嵌合溝（４ａ）は、切断場所（ＣＴ）に近い側の第１端部（４ａ１）においてＶ字状の断面（図４（ｄ）参照）を有している。また、嵌合溝（４ａ）の切断場所（ＣＴ）に遠い側の第２端部（４ａ２）において半円形の断面（図４（ｆ）参照）を有している。 As shown in FIGS. 4A to 4F, the fitting groove (4a) of the receiver (4) has a V-shaped cross section at the first end (4a1) near the cutting location (CT). (See FIG. 4D). The second end (4a2) of the fitting groove (4a) farther from the cutting location (CT) has a semicircular cross section (see FIG. 4 (f)).
　さらに、嵌合溝（４ａ）は、当該嵌合溝（４ａ）のうち切断場所（ＣＴ）に遠い側の第２端部（４ａ２）を含む少なくとも一部において、嵌合溝（４ａ）に沿って遠い側の第２端部（４ａ２）に近づくにつれてＶ字状の断面から半円形の断面へ徐々に変化する断面変化部（４ｃ）を有する。具体的には、この嵌合溝（４ａ）の断面変化部（４ｃ）では、図４（ｅ）に示されるように、嵌合溝（４ａ）がＶ字状の断面から半円形の断面へ徐々に下方から変わっていく。 Further, the fitting groove (4a) extends along the fitting groove (4a) at least in a part of the fitting groove (4a) including the second end (4a2) farther from the cutting position (CT). It has a cross-section change portion (4c) that gradually changes from a V-shaped cross-section to a semi-circular cross-section as it approaches the farthest second end (4a2). Specifically, in the cross-section changing portion (4c) of the fitting groove (4a), as shown in FIG. 4E, the fitting groove (4a) changes from a V-shaped cross section to a semicircular cross section. It gradually changes from below.
　断面変化部（４ｃ）の範囲は、嵌合溝（４ａ）の全長のうち第２端部（４ａ２）を含む少なくとも一部であればよく、本発明ではとくに限定されない。例えば、嵌合溝（４ａ）の全長の１／２～１／４程度の範囲に設定されるが、嵌合溝（４ａ）の全長にわたって断面変化部（４ｃ）が形成されてもよい。 範 囲 The range of the cross-section changing portion (4c) may be at least a part including the second end portion (4a2) in the entire length of the fitting groove (4a), and is not particularly limited in the present invention. For example, it is set in a range of about 1/2 to 1/4 of the entire length of the fitting groove (4a). However, the cross-section changing portion (4c) may be formed over the entire length of the fitting groove (4a).
　図４（ａ）に示されるように、嵌合溝（４ａ）における第２端部（４ａ２）の半円形の断面は、第１端部（４ａ１）のＶ字状の断面の深さよりも深くなるように形成されている。この構成において、断面変化部（４ｃ）におけるＶ字状の断面の底部が延びる線（４ｅ）に対するＶ字状の断面から半円形の断面へ徐々に変化する部分の底部が延びる線（４ｆ）の角度θ１は、アルミ電線（Ｗ）が切断場所（ＣＴ）に引き寄せられた状態におけるアルミ電線（Ｗ）のたわみの大きさに基づいて設定されている。 As shown in FIG. 4A, the semicircular cross section of the second end (4a2) in the fitting groove (4a) is deeper than the V-shaped cross section of the first end (4a1). It is formed so that it becomes. In this configuration, the line (4f) extending from the V-shaped cross section to the semi-circular cross section of the line (4f) extending from the V-shaped cross section to the semi-circular cross section with respect to the line (4e) extending from the V-shaped cross section at the cross-section changing section (4c). The angle θ1 is set based on the magnitude of the deflection of the aluminum electric wire (W) in a state where the aluminum electric wire (W) is drawn to the cutting location (CT).
　細いアルミ電線（Ｗ）（例えば、３２ｓｑ（すなわち、公称断面積が３２ｍｍ２のアルミ電線）の場合には、アルミ電線（Ｗ）が大きくたわむので、そのたわみ量を考慮して、上記の角度θ１は２度程度に設定される。一方、太いアルミ電線（Ｗ）（例えば、１２０ｓｑ（すなわち、公称断面積が１２０ｍｍ２のアルミ電線）の場合には、アルミ電線（Ｗ）のたわみ量は上記の３２ｓｑのアルミ電線よりも小さくなる。したがって、これを考慮して、図６（ａ）～（ｃ）に示されるような１２０ｓｑのアルミ電線に対応する受け４では、上記の角度θ２は１度程度に設定される。 In the case of a thin aluminum wire (W) (for example, 32 sq (that is, an aluminum wire having a nominal cross-sectional area of 32 mm2), the aluminum wire (W) bends greatly. On the other hand, in the case of a thick aluminum electric wire (W) (for example, 120 sq (that is, an aluminum electric wire having a nominal sectional area of 120 mm 2)), the deflection amount of the aluminum electric wire (W) is 32 sq. In consideration of this, the angle θ2 is set to about 1 degree in the receiver 4 corresponding to the 120 sq aluminum wire as shown in FIGS. Is done.
　また、図４（ａ）、（ｆ）に示される受け（４）では、嵌合溝（４ａ）における切断場所（ＣＴ）に遠い側の第２端部（４ａ２）の縁が面取りされている。具体的には、嵌合溝（４ａ）における切断場所（ＣＴ）に遠い側の第２端部（４ａ２）の縁には、当該縁の角が取れるように丸み（いわゆるＲ）が付けられた面取り部分（４ｄ）が形成されている。なお、面取り部分（４ｄ）は、嵌合溝（４ａ）の縁の角が取れればよく、縁の角を斜めにカットして取り除いた部分（いわゆるＣ面）でもよい。 In addition, in the receiver (4) shown in FIGS. 4A and 4F, the edge of the second end (4a2) on the side of the fitting groove (4a) far from the cutting location (CT) is chamfered. . Specifically, the edge of the second end (4a2) on the side far from the cutting location (CT) in the fitting groove (4a) is rounded (so-called R) so that the corner of the edge can be removed. A chamfer (4d) is formed. The chamfered portion (4d) only needs to have a corner at the edge of the fitting groove (4a), and may be a portion (so-called C surface) where the edge of the edge is obliquely cut and removed.
　カム部材（５）は、図１～３に示されるように、受け（４）の下側に配置され、アルミ電線（Ｗ）を下方から受けることが可能な構成を有する。
　具体的には、図５（ａ）～（ｃ）に示されるように、カム部材（５）の上面には、アルミ電線（Ｗ）を下方から支持する支持溝（５ａ）が形成されている。
　支持溝（５ａ）は、全長にわたってＶ字状の断面を有する。そのため、いかなる太さのアルミ電線（Ｗ）であっても、支持溝（５ａ）を構成する２つの面が電線を幅方向両側から支持することが可能である。 As shown in FIGS. 1 to 3, the cam member (5) is arranged below the receiver (4), and has a configuration capable of receiving the aluminum electric wire (W) from below.
Specifically, as shown in FIGS. 5A to 5C, a support groove (5a) for supporting the aluminum electric wire (W) from below is formed on the upper surface of the cam member (5). .
The support groove (5a) has a V-shaped cross section over the entire length. Therefore, regardless of the thickness of the aluminum electric wire (W), the two surfaces constituting the support groove (5a) can support the electric wire from both sides in the width direction.
　なお、カム部材（５）の支持溝（５ａ）の内面は、金属物質などの溶射などの加工を施すことによって、活線用振り分け工具（１）を用いてアルミ電線（Ｗ）を切断場所（ＣＴ）へ引き寄せる際にアルミ電線（Ｗ）が支持溝（５ａ）内部で滑ることを防止することが可能である。 The inner surface of the support groove (5a) of the cam member (5) is subjected to processing such as thermal spraying of a metal material or the like, so that the aluminum electric wire (W) is cut using the hot wire distribution tool (1). It is possible to prevent the aluminum electric wire (W) from slipping inside the support groove (5a) when drawing to the CT).
また、カム部材（５）の下面には、後述する間隔調整部（６）の矢部（６ｄ１）が挿入される挿入溝（５ｂ）が形成されている。 In addition, an insertion groove (5b) is formed on the lower surface of the cam member (5), into which an arrow (6d1) of an interval adjusting portion (6) described later is inserted.
　間隔調整部（６）は、カム部材（５）と受け（４）との間隔を調整する構成を有していればよく、本発明では間隔調整部の具体的な構成についてはとくに限定しない。
　例えば、図２に示される間隔調整部（６）は、ベース部（６ａ）と、受け（４）をベース部（６ａ）に着脱自在に固定する固定部（６ｂ）と、カム部材（５）をベース部（６ａ）に対して上下方向に移動できるように取り付ける取付け部（６ｃ）と、カム部材（５）を上方向へ押圧する押圧部（６ｄ）とを備える。 The interval adjusting section (6) only needs to have a configuration for adjusting the interval between the cam member (5) and the receiver (4), and the specific configuration of the interval adjusting section is not particularly limited in the present invention.
For example, the interval adjusting section (6) shown in FIG. 2 includes a base section (6a), a fixing section (6b) for detachably fixing the receiver (4) to the base section (6a), and a cam member (5). And a pressing portion (6d) for pressing the cam member (5) upwardly, the mounting portion (6c) for attaching the cam member (5) to the base portion (6a) so as to be vertically movable.
　ベース部（６ａ）の上部には、固定部（６ｂ）が取り付けられている。固定部（６ｂ）は、受け（４）の上部に設けられた突起を挟む（クランプする）機構を有している。これにより、嵌合溝（４ａ）が下方を向いた状態で受け（４）をベース部（６ａ）に着脱自在に取り付けることができる。 固定 A fixed part (6b) is attached to the upper part of the base part (6a). The fixing portion (6b) has a mechanism for clamping (clamping) a projection provided on the upper portion of the receiver (4). Thus, the receiver (4) can be detachably attached to the base (6a) with the fitting groove (4a) facing downward.
　取付け部（６ｃ）は、ベース部（６ａ）の上下方向に延びる垂直部分（６ａ１）の外周を取り囲む形状を有しており、当該垂直部分（６ａ１）に沿って上下方向に移動自在である。取付け部（６ｃ）には、カム部材（５）がボルトなどによって着脱自在に取り付けられている。これにより、カム部材（５）を受け（４）の下方において上下方向に移動自在に配置することが可能である。 The mounting portion (6c) has a shape surrounding the outer periphery of the vertical portion (6a1) extending in the vertical direction of the base portion (6a), and is vertically movable along the vertical portion (6a1). A cam member (5) is detachably attached to the attachment portion (6c) by a bolt or the like. Thereby, the cam member (5) can be disposed so as to be vertically movable below the receiving (4).
　押圧部（６ｄ）は、水平方向に移動可能な矢部（６ｄ１）と、上下方向に移動自在のくさび部（６ｄ２）と、くさび部（６ｄ２）を上方向へ押圧するねじ部（６ｄ３）とを有する。矢部（６ｄ１）の下部傾斜面（Ｓ１）は、くさび部（６ｄ２）の上部傾斜面（Ｓ２）に当接する。矢部（６ｄ１）の上部は、カム部材（５）の挿入溝（５ｂ）に若干の遊びをもたせて嵌合されている。そのため、挿入溝（５ｂ）の内部では、矢部（６ｄ１）の水平方向への移動は許容されている。 The pressing part (6d) includes an arrow part (6d1) that can move in the horizontal direction, a wedge part (6d2) that can move in the vertical direction, and a screw part (6d3) that presses the wedge part (6d2) upward. Have. The lower inclined surface (S1) of the arrow (6d1) contacts the upper inclined surface (S2) of the wedge (6d2). The upper part of the arrow part (6d1) is fitted in the insertion groove (5b) of the cam member (5) with some play. Therefore, the horizontal movement of the arrow (6d1) is allowed inside the insertion groove (5b).
　ねじ部（６ｄ３）は、外周面にねじ山が形成された棒状の部材であり、ベース部（６ａ）の垂直部分（６ａ１）の下端部から水平方向に延びる水平部分（６ａ２）に形成されたねじ孔（図示せず）に螺合している。したがって、ねじ部（６ｄ３）を回転させることによって、ねじ部（６ｄ３）の上端部がくさび部（６ｄ２）および矢部（６ｄ１）を持ち上げる。それとともに、矢部（６ｄ１）の上部は、カム部材（５）の挿入溝（５ｂ）に挿入された状態でカム部材（５）を持ち上げる。これにより、カム部材（５）を受け（４）に近づけ、受け（４）とカム部材（５）との間隔を狭めることができ、これら受け（４）およびカム部材（５）によって、アルミ電線（Ｗ）を上下から挟むことが可能である。 The screw portion (6d3) is a rod-shaped member having a thread formed on the outer peripheral surface, and is formed on a horizontal portion (6a2) extending horizontally from the lower end of the vertical portion (6a1) of the base portion (6a). It is screwed into a screw hole (not shown). Therefore, by rotating the screw (6d3), the upper end of the screw (6d3) raises the wedge (6d2) and the arrow (6d1). At the same time, the upper portion of the arrow (6d1) lifts the cam member (5) while being inserted into the insertion groove (5b) of the cam member (5). As a result, the cam member (5) can be brought closer to the receiving member (4), and the distance between the receiving member (4) and the cam member (5) can be reduced. (W) can be sandwiched from above and below.
　図１～２に示されるように、連結部（７）は、掴線器（２）をアルミ電線（Ｗ）の切断場所（ＣＴ）へ近づく方向（Ｐ）へ引っ張る引張用工具（３）の伸縮棒（３ａ）の両端部に配置された支持部（３ｂ）に対して上下方向に揺動自在に連結可能な部分である。 As shown in FIGS. 1 and 2, the connecting portion (7) is provided with a tensioning tool (3) for pulling the gripper (2) in a direction (P) approaching a cutting position (CT) of the aluminum electric wire (W). It is a portion which can be connected to the support portions (3b) arranged at both ends of the telescopic rod (3a) so as to be vertically swingable.
　図２に示される連結部（７）は、間隔調整部（６）の押圧部（６ｄ）の矢部（６ｄ１）の端部に設けられている。このため、矢部（６ｄ１）は、連結部（７）および上記支持部（３ｂ）を介して引張用工具（３）の伸縮棒（３ａ）に連結されている。したがって、伸縮棒（３ａ）が縮んだときには、矢部（６ｄ１）が連結部（７）とともに切断場所（ＣＴ）へ近づく方向（Ｐ）に引き寄せられる。このとき、矢部（６ｄ１）はくさび部（６ｄ２）の上部傾斜面（Ｓ２）に沿って上方へ押し上げられる。これにより、矢部（６ｄ１）の上方に位置するカム部材（５）も上方へ押し上げられることにより、受け（４）およびカム部材（５）によってアルミ電線（Ｗ）を挟む力を増大させて（いわゆる増し締めをして）アルミ電線（Ｗ）の軸方向への滑りを確実に抑制することが可能である。 連結 The connecting portion (7) shown in FIG. 2 is provided at the end of the arrow (6d1) of the pressing portion (6d) of the interval adjusting portion (6). For this reason, the arrow part (6d1) is connected to the telescopic rod (3a) of the pulling tool (3) via the connecting part (7) and the support part (3b). Therefore, when the telescopic rod (3a) is contracted, the arrow (6d1) is drawn together with the connecting part (7) in the direction (P) approaching the cutting location (CT). At this time, the arrow part (6d1) is pushed upward along the upper inclined surface (S2) of the wedge part (6d2). Accordingly, the cam member (5) located above the arrow (6d1) is also pushed upward, so that the force for sandwiching the aluminum electric wire (W) by the receiver (4) and the cam member (5) is increased (so-called It is possible to reliably suppress the sliding of the aluminum electric wire (W) in the axial direction (by retightening).
　なお、本実施形態の連結部（７）は、間隔調整部（６）の押圧部（６ｄ）の矢部（６ｄ１）の切断場所（ＣＴ）に近い場所の端部に設けられているが、本発明はこれに限定されるものではない。例えば、矢部（６ｄ１）を有しない掴線器（２）の場合には、連結部（７）がベース部（６ａ）などに配置されていてもよい。 The connecting portion (7) of the present embodiment is provided at an end of the pressing portion (6d) of the interval adjusting portion (6) near the cutting location (CT) of the arrow (6d1) of the pressing portion (6d). The invention is not limited to this. For example, in the case of the gripper (2) having no arrow part (6d1), the connecting part (7) may be arranged on the base part (6a) or the like.
　なお、上記の間隔調整部（６）は、受け（４）を固定してカム部材（５）を上下に移動させることによって受け（４）とカム部材（５）との間隔を調整しているが、本発明はこれに限定されるものではない。他の間隔調整部（６）として、カム部材（５）を固定して受け（４）を上下に移動させる構成でもよいし、または受け（４）およびカム部材（５）の両方を上下に移動させる構成でもよい。 In addition, the said distance adjustment part (6) adjusts the space | interval of a receiver (4) and a cam member (5) by fixing a receiver (4) and moving a cam member (5) up and down. However, the present invention is not limited to this. As another interval adjusting portion (6), a structure in which the cam member (5) is fixed and the receiver (4) is moved up and down, or both the receiver (4) and the cam member (5) are moved up and down. The configuration may be such that
　以上のように構成された掴線器（２）を用いて、アルミ電線（Ｗ）を空中に架設された状態で切断するために切断場所（ＣＴ）の近傍でアルミ電線（Ｗ）を掴む場合には、図１～２に示されるように、受け（４）の嵌合溝（４ａ）をアルミ電線（Ｗ）の上側部分に嵌合させ、その状態で、間隔調整部（６）によって、カム部材（５）と受け（４）との間隔を狭める方向に調整し、アルミ電線（Ｗ）の下側部分をカム部材（５）の支持溝（５ａ）に嵌合させる。これにより、アルミ電線（Ｗ）は、カム部材（５）と受け（４）との間に挟持され、掴線状態になる。 When the aluminum wire (W) is gripped near the cutting place (CT) in order to cut the aluminum wire (W) while being erected in the air using the wire gripper (2) configured as described above. As shown in FIGS. 1 and 2, the fitting groove (4a) of the receiving part (4) is fitted into the upper part of the aluminum electric wire (W). The distance between the cam member (5) and the receiver (4) is adjusted so as to be reduced, and the lower portion of the aluminum electric wire (W) is fitted into the support groove (5a) of the cam member (5). As a result, the aluminum electric wire (W) is sandwiched between the cam member (5) and the receiver (4) to be in a gripping state.
　そして、引張用工具（３）における伸縮棒（３ａ）を縮めることによって、掴線器（２）が切断場所（ＣＴ）に近づく方向（Ｐ）へ引っ張られたときには、アルミ電線（Ｗ）が切断場所（ＣＴ）近傍で上方にたわむ。このとき、たわみに対応して、掴線器（２）は、引張用工具（３）との連結部（７）において上下方向に揺動し、カム部材（５）および受け（４）は切断場所（ＣＴ）から遠い側の端部が下降する。それとともに、アルミ電線（Ｗ）の上側の部分が受け（４）の嵌合溝（４ａ）の内面に強く押し付けられる。 When the gripper (2) is pulled in the direction (P) approaching the cutting location (CT) by contracting the telescopic rod (3a) in the tensioning tool (3), the aluminum electric wire (W) is cut. Deflected upward near location (CT). At this time, in response to the deflection, the gripper (2) swings up and down at the connecting portion (7) with the pulling tool (3), and the cam member (5) and the receiver (4) are cut. The end farther from the place (CT) descends. At the same time, the upper part of the aluminum electric wire (W) is strongly pressed against the inner surface of the fitting groove (4a) of the receiver (4).
　嵌合溝（４ａ）は、図４（ｄ）に示されるように切断場所（ＣＴ）に近い側の第１端部（４ａ１）においてＶ字状の断面を有し、図４（ｆ）に示されるように切断場所（ＣＴ）に遠い側の第２端部（４ａ２）において第１端部（４ａ１）のＶ字状の断面の深さよりも深い半円形の断面を有する。また、嵌合溝（４ａ）は、図４（ａ）、（ｅ）に示されるように、当該嵌合溝（４ａ）のうち遠い側の第２端部（４ａ２）を含む少なくとも一部において、嵌合溝（４ａ）に沿って遠い側の第２端部（４ａ２）に近づくにつれてＶ字状の断面から半円形の断面へ徐々に変化する断面変化部（４ｃ）を有する。したがって、嵌合溝（４ａ）における切断場所（ＣＴ）に近い部分ではＶ字状の断面を構成する２つの面がアルミ電線（Ｗ）の上側の部分にそれぞれ別個に強く押し当てられることによって、アルミ電線（Ｗ）を幅方向両側から挟んでアルミ電線（Ｗ）の軸方向および幅方向のいずれにもずれないように安定して支持することが可能である。 The fitting groove (4a) has a V-shaped cross section at the first end (4a1) near the cutting location (CT) as shown in FIG. 4 (d). As shown, the second end (4a2) remote from the cutting location (CT) has a semicircular cross-section that is deeper than the depth of the V-shaped cross-section of the first end (4a1). As shown in FIGS. 4A and 4E, the fitting groove (4a) has at least a portion including the second end portion (4a2) on the far side of the fitting groove (4a). And a cross-section change portion (4c) that gradually changes from a V-shaped cross-section to a semicircular cross-section as it approaches the second end (4a2) on the far side along the fitting groove (4a). Therefore, in the portion near the cutting location (CT) in the fitting groove (4a), the two surfaces forming the V-shaped cross section are strongly pressed separately onto the upper portion of the aluminum electric wire (W), respectively. It is possible to stably support the aluminum electric wire (W) so as not to be displaced in either the axial direction or the width direction of the aluminum electric wire (W) by sandwiching the aluminum electric wire (W) from both sides in the width direction.
　嵌合溝（４ａ）のうち遠い側の第２端部（４ａ２）を含む断面変化部（４ｃ）は、嵌合溝（４ａ）の遠い側の第２端部（４ａ２）に近づくにつれて嵌合溝（４ａ）の断面がＶ字状の断面から半円形の断面へ徐々に変化する形状を有する。そのため、アルミ電線（Ｗ）の上側の部分の支持状態は、切断場所（ＣＴ）から離れるにつれてＶ字状の断面の２つの面によって幅方向両側から２点で支持される状態から半円形の断面の湾曲した面によって幅方向に広い接触面で支持される状態へ円滑に変化している。そのため、嵌合溝（４ａ）の遠い側の第２端部（４ａ２）に近い部分においても、アルミ電線（Ｗ）をその軸方向および幅方向へのずれを抑えながら安定して支持することが可能である。 The cross-section changing portion (4c) including the second end portion (4a2) on the far side of the fitting groove (4a) fits closer to the second end portion (4a2) on the far side of the fitting groove (4a). The cross section of the groove (4a) has a shape that gradually changes from a V-shaped cross section to a semicircular cross section. Therefore, the supporting state of the upper part of the aluminum electric wire (W) is changed from a state of being supported at two points from both sides in the width direction by two surfaces of the V-shaped cross section as the distance from the cutting place (CT) increases, to a semicircular cross section. Smoothly changes to a state in which it is supported by a wide contact surface in the width direction by the curved surface. Therefore, even in a portion near the second end (4a2) on the far side of the fitting groove (4a), it is possible to stably support the aluminum electric wire (W) while suppressing displacement in the axial direction and the width direction. It is possible.
　また、アルミ電線（Ｗ）が切断場所（ＣＴ）で上方にたわんだ状態では、嵌合溝（４ａ）の遠い側の第２端部（４ａ２）は、第１端部（４ａ１）よりも下方に位置するので、アルミ電線（Ｗ）の上側の端部が最も強く押し付けられる。しかし、遠い側の第２端部（４ａ２）は、半円形の断面になっているので、アルミ電線（Ｗ）の上側の端部が強く嵌合溝（４ａ）に押し付けられても、嵌合溝（４ａ）の遠い側の第２端部（４ａ２）における半円形の断面の湾曲した面によって幅方向に広い接触面で力を分散しながら支持することが可能である。 When the aluminum electric wire (W) is bent upward at the cutting location (CT), the second end (4a2) on the far side of the fitting groove (4a) is lower than the first end (4a1). , The upper end of the aluminum electric wire (W) is pressed most strongly. However, the second end (4a2) on the far side has a semicircular cross section, so that even if the upper end of the aluminum electric wire (W) is strongly pressed into the fitting groove (4a), the fitting is performed. The curved surface having a semicircular cross section at the second end portion (4a2) on the far side of the groove (4a) makes it possible to support the force while dispersing the force with a wide contact surface in the width direction.
　その結果、受け（４）の嵌合溝（４ａ）の全長にわたってアルミ電線（Ｗ）を軸方向および幅方向にずれないように安定して支持し、かつ、アルミ電線（Ｗ）が嵌合溝（４ａ）の遠い側の第２端部（４ａ２）に押し付けられることによるアルミ電線（Ｗ）の被覆部材の破損や損傷を防ぐことが可能である。 As a result, the aluminum wire (W) is stably supported along the entire length of the fitting groove (4a) of the receiver (4) so as not to shift in the axial direction and the width direction, and the aluminum wire (W) is supported by the fitting groove (4a). It is possible to prevent the covering member of the aluminum electric wire (W) from being damaged or damaged by being pressed against the second end (4a2) on the far side of (4a).
　また、本実施形態の受け（４）では、図４（ａ）、（ｆ）に示されるように、嵌合溝（４ａ）における切断場所（ＣＴ）に遠い側の第２端部（４ａ２）の縁が面取りされて面取り部分（４ｄ）が形成されている。したがって、アルミ電線（Ｗ）が掴線器（２）によって掴まれて切断場所（ＣＴ）へ引き寄せられたときに、アルミ電線（Ｗ）の上側の部分が嵌合溝（４ａ）の切断場所（ＣＴ）に遠い側の第２端部（４ａ２）の縁に押しつけられても、当該縁の面取り部分（４ｄ）によって形成された広い接触面によって力が分散する。そのため、アルミ電線（Ｗ）が嵌合溝（４ａ）の縁との接触によるアルミ電線（Ｗ）の被覆部材の破損や損傷を確実に防止または抑制することが可能である。 In the receiving part (4) of the present embodiment, as shown in FIGS. 4A and 4F, the second end part (4a2) on the side of the fitting groove (4a) far from the cutting location (CT). Is chamfered to form a chamfered portion (4d). Therefore, when the aluminum electric wire (W) is grasped by the grasping device (2) and drawn to the cutting place (CT), the upper part of the aluminum electric wire (W) is cut at the fitting place (4a) of the fitting groove (4a). Even when pressed against the edge of the second end (4a2) remote from the CT), the force is distributed by the wide contact surface formed by the chamfered portion (4d) of the edge. Therefore, breakage or damage of the covering member of the aluminum electric wire (W) due to the contact of the aluminum electric wire (W) with the edge of the fitting groove (4a) can be reliably prevented or suppressed.
　さらに、本実施形態では、アルミ電線（Ｗ）は太さなどの条件によってはアルミ電線（Ｗ）が切断場所（ＣＴ）に引き寄せられたときのたわみの大きさが異なることに対応した形状の嵌合溝（４ａ）の断面変化部（４ｃ）を有する。具体的には、アルミ電線（Ｗ）のたわみの大きさに対応するように、上記実施形態の構成では、図４（ａ）に示されるように、嵌合溝（４ａ）における第２端部（４ａ２）の半円形の断面は、第１端部（４ａ１）のＶ字状の断面の深さよりも深くなるように形成された構成において、断面変化部（４ｃ）におけるＶ字状の断面の底部が延びる線（４ｅ）に対するＶ字状の断面から半円形の断面へ徐々に変化する部分の底部が延びる線（４ｆ）の角度θ１は、アルミ電線（Ｗ）が切断場所（ＣＴ）に引き寄せられた状態におけるアルミ電線（Ｗ）のたわみの大きさに基づいて設定されている。それにより、アルミ電線（Ｗ）を切断場所（ＣＴ）に引き寄せたときにアルミ電線（Ｗ）が上方にたわんだ状態ではアルミ電線（Ｗ）は受け（４）に押し付けられるが、アルミ電線（Ｗ）が受け（４）に押し付けられる力を、断面変化部（４ｃ）の全体にわたって分散して受けることが可能になる。その結果、嵌合溝（４ａ）の遠い側の第２端部（４ａ２）に力が集中することを確実に防ぐことが可能になり、当該嵌合溝（４ａ）の遠い側の第２端部（４ａ２）におけるアルミ電線（Ｗ）の被覆部材の破損や損傷をより一層確実に抑制することが可能である。 Further, in the present embodiment, the fitting of the aluminum electric wire (W) has a shape corresponding to the difference in the size of the deflection when the aluminum electric wire (W) is drawn to the cutting place (CT) depending on the conditions such as the thickness. The groove (4a) has a cross-section changing portion (4c). Specifically, in the configuration of the above embodiment, as shown in FIG. 4A, the second end portion of the fitting groove (4a) corresponds to the size of the deflection of the aluminum electric wire (W). In a configuration in which the semicircular cross section of (4a2) is formed to be deeper than the depth of the V-shaped cross section of the first end portion (4a1), the V-shaped cross section of the cross-section changing portion (4c) is formed. The angle θ1 of the bottom extending line (4f) of the portion that gradually changes from the V-shaped cross section to the semicircular cross section with respect to the bottom extending line (4e) is drawn by the aluminum electric wire (W) to the cutting location (CT). It is set based on the magnitude of the deflection of the aluminum electric wire (W) in the state in which it is set. Thus, when the aluminum electric wire (W) is drawn to the cutting place (CT) and the aluminum electric wire (W) is bent upward, the aluminum electric wire (W) is pressed against the receiver (4). ) Can be distributed and received over the entire cross-section changing portion (4c). As a result, it is possible to reliably prevent the force from being concentrated on the second end portion (4a2) on the far side of the fitting groove (4a), and the second end portion on the far side of the fitting groove (4a) can be reliably prevented. Breakage or damage of the covering member of the aluminum electric wire (W) in the portion (4a2) can be more reliably suppressed.
　また、本実施形態の掴線器（２）では、受け（４）は、間隔調整部（６）の固定部（６ｂ）に着脱自在に取り付けられている。そのため、アルミ電線（Ｗ）の太さに対応する嵌合溝（４ａ）を有する受け（４）に交換することが可能である。例えば、図２～３に示される掴線器（２）では、３２ｓｑのアルミ電線用の受け（４）が上記間隔調整部（６）の固定部（６ｂ）に取り付けられているが、この受け（４）の代わりに、太いアルミ電線に対応する受けとして、図６に示される１２０ｓｑのアルミ電線用の受け（４）を当該固定部（６ｂ）に着脱自在に取り付けることが可能である。 In the gripper (2) of the present embodiment, the receiver (4) is detachably attached to the fixing portion (6b) of the interval adjusting portion (6). Therefore, it is possible to replace it with a receiver (4) having a fitting groove (4a) corresponding to the thickness of the aluminum electric wire (W). For example, in the gripper (2) shown in FIGS. 2 and 3, a receiver (4) for a 32 sq aluminum electric wire is attached to the fixing part (6b) of the interval adjusting part (6). Instead of (4), a receiver (4) for a 120 sq aluminum electric wire shown in FIG. 6 can be detachably attached to the fixing portion (6b) as a receiver corresponding to a thick aluminum electric wire.
　なお、図６に示される１２０ｓｑのアルミ電線用の受け（４）は、図４に示される３２ｓｑのアルミ電線用の受け（４）と比較して、対応する電線の太さの分だけ嵌合溝（４ａ）の形状が若干異なるが、その他の部分については共通の構造を有するようにすれば上記の３２ｓｑ用の受け（４）と交換可能である。 The receiver (4) for the 120 sq aluminum electric wire shown in FIG. 6 is fitted by the thickness of the corresponding electric wire as compared with the receiver (4) for the 32 sq aluminum electric wire shown in FIG. Although the shape of the groove (4a) is slightly different, the other portions can be replaced with the above-mentioned 32sq receiver (4) if they have a common structure.
　また、本実施形態の掴線器（２）では、カム部材（５）および受け（４）は、間隔調整部（６）に着脱自在に取り付けられている。したがって、アルミ電線（Ｗ）の太さに対応する嵌合溝（４ａ）を有する受け（４）に交換することが可能であるだけでなく、アルミ電線（Ｗ）以外の他の材質の電線、例えば銅線を備えた電線を掴むことに適したスパイク（突起）を有するカム部材（５）および受け（４）に交換することが可能である。その結果、掴線器（２）の汎用性が広がる。 In the gripper (2) of the present embodiment, the cam member (5) and the receiver (4) are detachably attached to the interval adjusting section (6). Therefore, it is possible to replace not only the receiver (4) having the fitting groove (4a) corresponding to the thickness of the aluminum electric wire (W), but also an electric wire of other material other than the aluminum electric wire (W), For example, it is possible to replace the cam member (5) and the receiver (4) having spikes (projections) suitable for grasping an electric wire provided with a copper wire. As a result, the versatility of the gripper (2) is expanded.
　本実施形態の掴線器（２）を備えた活線振り分け工具（１）では、上記のように構成された一対の掴線器（２）によってアルミ電線（Ｗ）の切断場所（ＣＴ）の両側を掴み、引張用工具（３）の伸縮棒（３ａ）によって一対の掴線器（２）のそれぞれをアルミ電線（Ｗ）の切断場所（ＣＴ）へ近づく方向（Ｐ）へ引っ張ることにより、アルミ電線（Ｗ）を切断場所（ＣＴ）へ両側から容易に引き寄せることが可能である。しかも、アルミ電線（Ｗ）における切断場所（ＣＴ）の両側の部分では掴線器（２）によって掴まれている部分におけるアルミ電線（Ｗ）の被覆部材の破損や損傷を防ぐことが可能である。 In the live-line sorting tool (1) including the gripper (2) of the present embodiment, the cutting position (CT) of the aluminum electric wire (W) is cut by the pair of grippers (2) configured as described above. By gripping both sides and pulling each of the pair of grippers (2) in the direction (P) approaching the cutting place (CT) of the aluminum electric wire (W) with the telescopic rod (3a) of the pulling tool (3), The aluminum electric wire (W) can be easily drawn from both sides to the cutting place (CT). In addition, it is possible to prevent the covering member of the aluminum electric wire (W) from being damaged or damaged in the portion of the aluminum electric wire (W) on both sides of the cutting place (CT) which is gripped by the gripper (2). .
　本発明は、アルミ電線用の掴線器およびそれを用いた活線振り分け工具に広く用いることが可能であり、アルミ電線を掴んで切断場所に引き寄せたときのアルミ電線の被覆部材の損傷を防ぐことが可能である。 INDUSTRIAL APPLICABILITY The present invention can be widely used for a gripper for an aluminum electric wire and a hot wire sorting tool using the same, and prevents damage to a covering member of the aluminum electric wire when the aluminum electric wire is gripped and drawn to a cutting place. It is possible.
１　活線振り分け工具
２、２Ｒ、２Ｌ　掴線器
３　引張用工具
３ａ　伸縮棒
３ｂ　支持部
４　受け
４ａ　嵌合溝
４ａ１　第１端部
４ａ２　第２端部
４ｃ　断面変化部
４ｄ　面取り部分
４ｅ、４ｆ　線
５　カム部材
５ａ　支持溝
６　間隔調整部
６ａ　ベース部
６ｂ　固定部
６ｃ　取付け部
６ｄ　押圧部
６ｄ１　矢部
６ｄ２　くさび部
６ｄ３　ねじ部
７　連結部
ＣＴ　切断場所
Ｗ　アルミ電線 DESCRIPTION OF SYMBOLS 1 Hot- line sorting tool 2, 2R, 2L Gripping device 3 Tensioning tool 3a Telescopic bar 3b Support part 4 Receiver 4a Fitting groove 4a1 First end 4a2 Second end 4c Cross-section changing part 4d Chamfered part 4e, 4f Reference Signs List 5 Cam member 5a Support groove 6 Interval adjusting part 6a Base part 6b Fixed part 6c Mounting part 6d Pressing part 6d1 Arrow part 6d2 Wedge part 6d3 Screw part 7 Connecting part CT Cutting place W Aluminum wire

Claims (6)

  1. アルミニウム製の線材が被覆部材によって被覆されたアルミ電線を空中に架設された状態で切断するために切断場所の近傍でアルミ電線を掴むアルミ電線用の掴線器であって、
    　前記アルミ電線に上方から嵌まる嵌合溝が下面に形成された受けと、
    　前記受けの下側に配置され、アルミ電線を下方から支持する支持溝が上面に形成されたカム部材と、
    　前記カム部材と受けとの間隔を調整する間隔調整部と、
    　前記掴線器をアルミ電線の切断場所へ近づく方向へ引っ張る引張用工具に対して上下方向に揺動自在に連結可能な連結部と
    を備えており、
    　前記受けの前記嵌合溝は、前記切断場所に近い側の第１端部においてＶ字状の断面を有し、前記切断場所に遠い側の第２端部において半円形の断面を有し、
    　さらに、前記嵌合溝は、当該嵌合溝のうち切断場所に遠い側の第２端部を含む少なくとも一部において、前記嵌合溝に沿って前記遠い側の第２端部に近づくにつれてＶ字状の断面から半円形の断面へ徐々に変化する断面変化部を有する、
    ことを特徴とする掴線器。     A gripper for an aluminum electric wire that grips an aluminum electric wire in the vicinity of a cutting place in order to cut the aluminum electric wire covered by the covering member in a state where the aluminum electric wire is laid in the air,
    A receiving groove formed on the lower surface of the aluminum electric wire to be fitted from above,
    A cam member disposed on the lower side of the receiver and having a support groove formed on the upper surface for supporting the aluminum electric wire from below,
    An interval adjuster that adjusts an interval between the cam member and the receiver,
    A connecting portion that can be vertically swingably connected to a pulling tool that pulls the gripper in a direction approaching a cutting place of the aluminum wire,
    The fitting groove of the receiver has a V-shaped cross section at a first end near the cutting location, and a semicircular cross section at a second end far from the cutting location,
    Further, in at least a part of the fitting groove including a second end portion on a side farther from the cutting place in the fitting groove, the V becomes closer to the second end portion on the far side along the fitting groove. Having a cross section changing portion that gradually changes from a U-shaped cross section to a semicircular cross section,
    A gripper characterized in that:
  2. 前記受けでは、前記嵌合溝における切断場所に遠い側の第２端部の縁が面取りされている、
    請求項１に記載の掴線器。     In the receiver, the edge of the second end on the side far from the cutting location in the fitting groove is chamfered.
    The gripper according to claim 1.
  3. 前記嵌合溝における前記第２端部の半円形の断面は、前記第１端部のＶ字状の断面の深さよりも深くなるように形成され、
    　前記断面変化部における前記Ｖ字状の断面の底部が延びる線に対するＶ字状の断面から半円形の断面へ徐々に変化する部分の底部が延びる線の角度は、前記アルミ電線が切断場所に引き寄せられた状態におけるアルミ電線のたわみの大きさに基づいて設定されている、
    請求項２に記載の掴線器。     The semicircular cross section of the second end in the fitting groove is formed so as to be deeper than the depth of the V-shaped cross section of the first end.
    The angle of the line extending from the V-shaped cross-section to the semi-circular cross-section at the bottom of the V-shaped cross-section at the cross-section changing portion is determined by the angle at which the aluminum wire is drawn to the cutting location. Is set based on the magnitude of the deflection of the aluminum wire in the state where
    The gripper according to claim 2.
  4. 前記受けは、前記間隔調整部に着脱自在に取り付けられている、
    請求項１乃至３のいずれか１項に記載の掴線器。     The receiver is detachably attached to the interval adjustment unit,
    The gripper according to any one of claims 1 to 3.
  5. 前記カム部材および前記受けは、前記間隔調整部に着脱自在に取り付けられている、
    請求項１乃至３のいずれか１項に記載の掴線器。     The cam member and the receiver are detachably attached to the interval adjustment unit,
    The gripper according to any one of claims 1 to 3.
  6. アルミニウム製の線材が被覆部材によって被覆されたアルミ電線を空中に架設された状態で切断するために切断場所の近傍の両側でアルミ電線を掴んで当該アルミ電線を当該切断場所へ両側から引き寄せる活線振り分け工具であって、
    　請求項１乃至５のいずれか１項に記載の掴線器であって、前記切断場所の両側で前記アルミ電線を掴む一対の掴線器と、
    　前記一対の掴線器のそれぞれをアルミ電線の切断場所へ近づく方向へ引っ張る引張用工具とを備え、
    　前記引張用工具は、伸縮自在の伸縮棒を備えており、
    　前記一対の掴線器のそれぞれの前記連結部が前記伸縮棒の両端部に連結されることにより、当該一対の掴線器は、前記伸縮棒に対して上下方向に揺動自在に連結されている、
    活線振り分け工具。     In order to cut the aluminum wire covered with the covering member with the aluminum wire rod in the air, the aluminum wire is gripped on both sides in the vicinity of the cutting location and the live wire is drawn to the cutting location from both sides. A sorting tool,
    The gripper according to any one of claims 1 to 5, wherein a pair of grippers grips the aluminum electric wire on both sides of the cutting location,
    A tensioning tool that pulls each of the pair of grippers in a direction approaching the cutting place of the aluminum wire,
    The pulling tool includes a telescopic bar that can expand and contract,
    Each of the connecting portions of the pair of grippers is connected to both ends of the telescopic bar, so that the pair of grippers are vertically swingably connected to the telescopic bar. Yes,
    Live line sorting tool.
PCT/JP2019/031886 2018-09-21 2019-08-13 Wire gripper and live line sorting tool using said wire gripper WO2020059369A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020217007084A KR102499968B1 (en) 2018-09-21 2019-08-13 Wire gripper and live wire distribution tool using it
CN201980057138.6A CN112689930B (en) 2018-09-21 2019-08-13 Fixing-line device and live line distribution tool using same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018178053A JP6815653B2 (en) 2018-09-21 2018-09-21 Gripping device and live-line sorting tool using it
JP2018-178053 2018-09-21

Publications (1)

Publication Number Publication Date
WO2020059369A1 true WO2020059369A1 (en) 2020-03-26

Family

ID=69887079

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/031886 WO2020059369A1 (en) 2018-09-21 2019-08-13 Wire gripper and live line sorting tool using said wire gripper

Country Status (5)

Country Link
JP (1) JP6815653B2 (en)
KR (1) KR102499968B1 (en)
CN (1) CN112689930B (en)
TW (1) TWI712240B (en)
WO (1) WO2020059369A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641160A (en) * 2020-04-23 2020-09-08 武汉船用机械有限责任公司 Cable laying device and cable laying trough

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022211502A1 (en) 2021-03-31 2022-10-06 주식회사 엘지에너지솔루션 Battery cell manufacturing method and battery cell manufacturing apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005089084A (en) * 2003-09-17 2005-04-07 Ingu:Kk Wire gripper
WO2014103195A1 (en) * 2012-12-27 2014-07-03 株式会社永木精機 Wire gripper
WO2017179550A1 (en) * 2016-04-14 2017-10-19 株式会社永木精機 Wire gripper and live-wire distributing tool utilizing wire gripper

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0898356A (en) * 1994-09-26 1996-04-12 Asahi Tec Corp Anchor clamp
JP2990103B2 (en) * 1997-06-10 1999-12-13 関西電力株式会社 Cable tension device
JP2002281625A (en) * 2001-03-19 2002-09-27 Yurtec Corp Cable holder
US7353602B2 (en) * 2006-03-07 2008-04-08 3M Innovative Properties Company Installation of spliced electrical transmission cables
JP5268537B2 (en) 2008-10-02 2013-08-21 中国電力株式会社 Hot line cutting tool
CN202395383U (en) * 2011-12-29 2012-08-22 温县永恩电力机具有限公司 Adjustable twisting-preventing steel rope clip for stringing construction of electric transmission line
JP2014012818A (en) 2012-06-27 2014-01-23 Rohm & Haas Co Streak-free formulations for cleaning and coating hard surfaces
CN202949173U (en) * 2012-07-18 2013-05-22 中国电力科学研究院 Wire clamping device
CN203014287U (en) * 2013-01-09 2013-06-19 国家电网公司 Insulation wire tightener
BR112017002352A2 (en) * 2014-08-07 2017-11-28 Henkel Ag & Co Kgaa electroceramic sheath of a wire for use in a beam power transmission cable
CN205959672U (en) * 2014-09-17 2017-02-15 黄建平 Reduce high energy efficiency wire of hot flex point
KR102569368B1 (en) * 2016-01-06 2023-08-21 나가키 세이키 코포레이션 리미티드 Wire gripper
CN206595637U (en) * 2017-01-16 2017-10-27 江西洪都国际机电有限责任公司 A kind of cable distribution fixing-line device
CN207839935U (en) * 2017-12-25 2018-09-11 兰溪耐合金属有限公司 A kind of novel wire twisting machine
CN108483143A (en) * 2018-04-26 2018-09-04 江苏隆耀传导技术有限公司 A kind of multi-functional copper-clad aluminum conductor winding wire-unfolding rack

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005089084A (en) * 2003-09-17 2005-04-07 Ingu:Kk Wire gripper
WO2014103195A1 (en) * 2012-12-27 2014-07-03 株式会社永木精機 Wire gripper
WO2017179550A1 (en) * 2016-04-14 2017-10-19 株式会社永木精機 Wire gripper and live-wire distributing tool utilizing wire gripper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641160A (en) * 2020-04-23 2020-09-08 武汉船用机械有限责任公司 Cable laying device and cable laying trough
CN111641160B (en) * 2020-04-23 2021-11-26 武汉船用机械有限责任公司 Cable laying device and cable laying trough

Also Published As

Publication number Publication date
KR102499968B1 (en) 2023-02-14
CN112689930A (en) 2021-04-20
JP2020054021A (en) 2020-04-02
KR20210042363A (en) 2021-04-19
JP6815653B2 (en) 2021-01-20
TWI712240B (en) 2020-12-01
CN112689930B (en) 2022-05-13
TW202013845A (en) 2020-04-01

Similar Documents

Publication Publication Date Title
WO2020059369A1 (en) Wire gripper and live line sorting tool using said wire gripper
JP4846599B2 (en) A cable stripper that automatically adapts and adapts to various conductor cross sections
JP4892009B2 (en) Connection system with push-in connection
US8656812B2 (en) Plier
AU2013319594B2 (en) Wire gripper
US8585431B2 (en) Electrical connection clamp
CA2961197A1 (en) Universal mounting clip for signal-carrying cables
US11101625B2 (en) Wire grip and live-wire distributing tool having the wire grip
CN214053502U (en) Core separation mechanism and electronic detonator leg wire processing equipment
NZ240579A (en) Wire end contact: insulation displacement and strain relief
KR101572946B1 (en) Multi-clamp for communication cable
JP2007276024A (en) Adapter for use in pliers for remote operation
JP5705589B2 (en) Cable insertion aid
JP2009006809A (en) Section insulator
KR200455418Y1 (en) Wire stopper of terminal binder
JP5778222B2 (en) Tool for holding overhead wires
WO2020121682A1 (en) Wire gripper, and mounting structure for mounting rocking member to first member of work tool
JPS6124412Y2 (en)
JP6867903B2 (en) Manufacturing method of electric wire with terminal, die for crimping terminal and electric wire with terminal
US1030798A (en) Bus-bar-connecting device.
KR101629573B1 (en) cable connecting cramp
JP6750853B2 (en) Tool for removing protective tube
KR20020045991A (en) apparatus for fixing a Transmission Gear Shift Cable for a vehicle
JP2009227232A (en) Hanger device in integrated wire
JPH07322454A (en) Anchor clamp

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19862560

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20217007084

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19862560

Country of ref document: EP

Kind code of ref document: A1