JP2015019519A - Clip for indirect hot-line work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a work of attaching/detaching a clip for indirect hot-line work to/from an insulating sheet or the like, which is covered on an electric wire or the like, easier.SOLUTION: A clip comprises: a base member 2 including a stationary operation piece 3; a mobile operation piece 6 supported capable of approaching and separating with respect to the stationary operation piece; two articulated pinching members 20, 21; a first wire rod 50; a second wire rod 60; a first operation mechanism 70 that gives the first wire rod tension equal to or greater than a predetermined value; and a second operation mechanism 80 that gives the second wire rod tension equal to or greater than a predetermined value. The two articulated pinching members enter a pinched state where the members approach each other when the first operation mechanism gives the first wire rod tension equal to or greater than a predetermined value, and the two articulated pinching members enter an open state where the members are separated when the second operation mechanism gives the second wire rod tension equal to or greater than a predetermined value.

Description

  The present invention relates to a clip for an indirect hot wire method used in an indirect hot wire work for a high voltage electric facility or the like.

  In the indirect hot wire work, an operator performs various work on the charged high-voltage distribution line (electric wire) by using an indirect hot wire tool such as an insulated Yatco. In indirect hot wire work, for example, by using an indirect hot wire clip (insulating sheet sandwiching tool), the electric shock prevention insulating sheet placed on the charged portion of the electric wire is sandwiched and fixed together with the electric wire, or by cutting It is necessary to take safety measures such as temporarily fixing the free wire to other parts. This indirect hot wire method clip is generally operated using an insulating jacket provided with a long handle (Patent Document 1).

FIG. 7A is a view showing a state where a conventional clip for indirect hot wire construction (hereinafter referred to as a clip) and an insulating sheet are juxtaposed, and FIG. 7B is an insulation covered in a folded state with respect to an electric wire. It is a perspective view which shows the state which fixed the sheet | seat with the clip, and Fig.8 (a) and (b) are the surface views and back views which show the structure of the conventional insulating sheet.
The clip 100 pivotally supports the two left and right clamping members 101 and 102 by an opening / closing pivotal support portion 105, and urges the tip portions 101a and 102a of the respective clamping members in a close approaching direction (not shown). It has a spring. When the front end is closed, the rear end portions 101b and 102b are separated as shown in the figure, and by using an insulating jacket (not shown), the rear end portions 101b and 102b are sandwiched in a direction to bring them closer to each other. Accordingly, the tip portions 101a and 102a can be opened.

As shown in FIG. 8, the insulating sheet 110 includes a rectangular sheet main body 111 made of an insulating material, a clip mounting portion 113 disposed on the surface of the sheet main body, a hook-and-loop fastener 121 fixed along the upper edge of the sheet main body, A fastening portion 120 formed of a hook-and-loop fastener 122 fixed to a protruding piece protruding from the lower end edge of the seat body, a handle 124 provided at the center portion of the seat body surface, and a center portion of the seat body rear surface to prevent the seat body from being deformed And a plate-shaped core member 125 fixed to the portion.
The sheet body 111 is put on the electric wire 130 in a state of being folded in two along the vertical center (center line CL).
The clip attachment portion 113 includes a pair of clip pockets (bags) 114 that are arranged opposite to each other in the vertical position along the center line CL of the sheet main body 111, and a tip end portion 101a of the clip inserted into the clip pocket. , 102a, and a pair of clip tightening bands 115a, 115b that hold down so as not to drop off.

In this example, the clip pockets 114 are arranged at four locations, and only the end portion on the center line CL side of each clip pocket is opened, and the clip as shown in FIG. The front end portions 101a and 102a of the 100 are inserted in advance, and the front end portions 101a and 102a are tightened using clip fastening bands 115a and 115b provided with hook-and-loop fasteners to prevent the pockets from falling out of the pockets.
As described above, by fixing the clip 100 to the pocket 114 of the sheet main body before attaching the insulating sheet 110 to the electric wire 130, the clip is not dropped from the insulating sheet even when the clip is opened and closed. In this state, the insulating sheet is attached to the electric wire while holding the rear end portions 101b and 102b of the clip 100 between the leading end portions of an insulating Yatchco (not shown).

By operating the handle portion of the insulating jacket (not shown) to adjust the clamping force of the rear end portion of the clip by the leading end portion of the insulating jacket, the leading end portions 101a and 102a can be opened and closed, and the leading end portion is opened. Thus, the insulating sheet can be covered with the electric wire in a folded state as shown in FIG. After the electric wire is sandwiched through the sheet main body by closing the clip front end portion, the insulating jacket is detached from the clip rear end portion.
Thus, after covering an electric wire with an insulating sheet, an insulating sheet can be fixed with respect to an electric wire by making the surface fasteners 121 and 122 into a fastening state.

Incidentally, the two tip portions 101a and 102a of the clip 100 are curved as shown in the figure. On the other hand, the sheet body portion that supports the clip mounting portion 113 is always urged to be a flat surface by the shape retaining force of the core member 125 fixed to the back surface of the sheet body. For this reason, resistance is often generated when inserting the tip of the clip into the opening of the clip pocket, and the operation of inserting the clip is often troublesome.
In actual work, while manually folding the sheet main body in half at the center line CL, the two clip tip portions 101a and 102a opened by hand are inserted into the openings of the pockets 114, but the clip tip portions are curved. On the other hand, since the pockets are biased to flatten by the core material, not only is the insertion difficult, but also the insertion work requires a technique and a strong force, and the work efficiency is not good.

JP2012-200089

A conventional clip for indirect hot wire method is operated using a long insulating jacket, and is used for work such as fixing or removing the insulating sheet from the electric wire, but the clip has a curved tip On the other hand, since the core for keeping the sheet body flat is provided on the insulating sheet side, the work of attaching the clip in advance to the clip mounting portion on the insulating sheet side is complicated and the work efficiency is high. It was bad.
The present invention has been made in view of the above, and can be easily mounted on a clip mounting portion provided on an insulating sheet provided with a core for keeping the sheet body flat without requiring skill. A clip for an indirect hot wire method is provided.

  To achieve the above object, a clip for an indirect hot wire method according to the invention of claim 1 includes a base member provided with a fixed operation piece, and a movable operation piece supported so as to be able to approach and separate from the fixed operation piece. An elastic member that urges the movable operation piece in a direction away from the fixed operation piece, a proximal end pinching piece that is rotatably supported by two shaft support portions provided on the base member, and Two articulated pinching members each having a tip pinching piece pivotally supported through one or a plurality of rotating joint portions provided between the base end pinching pieces, Both ends are fixed to the tip pinching piece, both ends are fixed to the first wire rod having the intermediate portion wired to the base member through the rotating joint portions, and the respective times. A second wire having an intermediate portion wired to the base member via a moving joint, and the base member And a first operating mechanism that applies or releases a predetermined tension to the first wire, and a second or more tension applied to the second wire when the movable operation piece is closed. A second operating mechanism for applying or releasing the tension, and when the first operating mechanism applies a predetermined tension or more to the first wire, the two articulated clamping members are When the second operating mechanism applies a predetermined tension or more to the second wire rod, the two articulated pinching members are separated and opened.

According to a second aspect of the present invention, each of the articulated pinching members has a configuration in which the proximal pinching piece, at least one connecting piece, and the distal pinching piece are sequentially connected via the rotating joint portion. The first wire rod and the second wire rod extend to the base member via the tip pinching pieces, the connection pieces, and the base end pinching pieces, and the first wire rods. Each intermediate portion of the second wire rod is supported by the first operation mechanism and the second operation mechanism on the base member side, respectively.
According to a third aspect of the present invention, the first operation mechanism includes a wire rod adjustment knob supported by the base member so as to be able to move in and out, and a guide member supported by the wire rod adjustment knob and wound around the first wire rod. When the wire rod adjustment knob is in the retracted position, the first wire rod is relaxed, and when the wire rod adjustment knob is in the protruding position, a tension of a predetermined level or more is applied to the first wire rod. Features.

  According to a fourth aspect of the present invention, the second operating mechanism includes an operating piece pivotally supported by a shaft portion provided on the movable operating piece, two guide members disposed on the operating piece, The first wire rod is wired to one of the two guide members, and the second wire rod is wired to the other guide member, and the first operation mechanism When the movable operation piece is in an open position separated from the fixed operation piece in a state where a predetermined tension is applied to the first wire, the one guide member presses the first wire to one side. By doing so, the two articulated clamping members can be clamped, and when the movable operation piece is in the closed position approaching the fixed operation piece, the other guide member is moved to the second position. By pressing the wire against the other Characterized in that the open state of the two articulated press member.

  According to the present invention, the clip can be easily attached to the clip mounting portion provided on the insulating sheet provided with the core material for keeping the sheet main body flat without requiring skill. Further, the clip can be easily opened and closed using an insulating jacket after the clip has been attached.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the clip for indirect hot wire construction methods concerning one Embodiment of this invention, (a) is a front view, (b) is a left view, (c) is a right view, (d) is a top view, (E) is a bottom view. The internal structure of the clip for indirect hot wire method is shown, (a) is a neutral state, (b) is a pinching state, (c) is the figure which showed the open state. (A) thru | or (d) is a figure which shows the operation procedure of a 1st operation mechanism. It is AA sectional drawing of FIG.2 (c). It is explanatory drawing which shows the state which is operating the clip of this invention with the insulated Yatco. (A) (b) And (c) are the front view, the top view, and the right view of the clip for indirect hot wire construction method concerning other embodiment of this invention, (d) is explanatory drawing of a use condition. is there. (A) is a figure which shows the state where the conventional clip for indirect hot wire construction and the insulating sheet were juxtaposed, and (b) shows the state which fixed the insulating sheet which covered the electric wire in the folded state with the clip. It is a perspective view. (A) And (b) is the front view and back view which show the structure of the conventional insulating sheet.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
FIG. 1 is an external view of a clip for indirect hot wire construction according to an embodiment of the present invention, (a) is a front view, (b) is a left side view, (c) is a right side view, and (d) is a right side view. FIG. 2 is a bottom view, FIG. 2 shows the internal configuration of the indirect hot wire clip, (a) is in a neutral state, (b) is in a pinched state, and (c) is in an open state. FIGS. 3A to 3D are views showing an operation procedure of the first operation mechanism, and FIG. 4 is a cross-sectional view taken along line AA of FIG. 2C.

  A clip for indirect hot wire construction (hereinafter referred to as a clip) 1 includes a fixed operation piece 3 and is supported by a base member 2 that is at least partially hollow and an operation-side shaft support 5 provided on the base member 2. Accordingly, the movable operation piece 6 supported so as to be able to approach (close) and separate (open) from the fixed operation piece 3 and an elastic member that urges the movable operation piece 6 in a direction to separate the fixed operation piece 3 from the fixed operation piece 3. 7, a proximal end sandwiching piece 30, and a proximal end sandwiching piece 30, each of which is pivotally supported so that one end thereof can be pivoted (oscillated) by the two sandwiching support portions 10, 11 provided on the base member 2. Two articulated pinching members 20 and 21 each having a tip pinching piece 40 rotatably supported via one or a plurality of rotating joint portions 37 provided between the two articulated members, and two articulated members Both end portions are respectively fixed to the front end pressing pieces 40 of the holding members 20 and 21, and at least A first wire 50 (biasing means in the clamping direction) 50 partially extending to the base member 2 side through the inner path of each rotating joint portion 37 and having an intermediate portion wired to the base member, and two articulated joints Both ends are fixed to the respective front end pressing pieces 40 of the holding member, at least a part thereof extends to the base member side through the outer path of each rotary joint portion 37, and the intermediate portion is wired to the base member. Wire rod (biasing means in the opening direction) 60, a first operating mechanism 70 provided on the base member 2 to apply a tension of a predetermined level or higher to the first wire rod 50, or to release the tension, A second operation mechanism 80 that applies a predetermined tension or more to the second wire 60 during the closing operation of the movable operation piece 6 or releases the tension;

The fixed operation piece 3 and the movable operation piece 6 are appropriately provided with anti-slip means and locking means for preventing displacement and the like when the clamping means at the tip of the insulating jacket 90 shown in FIG. To do.
The articulated pinching members (multi-joint pinching members) 20 and 21 according to this example include two connecting pieces 35 and 36 between the proximal pinching piece 30 and the distal pinching piece 40, and the proximal ends. Rotating joints 37 are arranged between the pinching piece 30 and the connecting piece 35, between the connecting piece 35 and the connecting piece 36, and between the connecting piece 36 and the tip pressing piece 40, respectively. The members 20, 35, 36, and 40 are pivotally supported in substantially the same plane.
In addition, the number of connection pieces should just be 1 or more. Moreover, it is good also as an articulated pinching member which connected the base end pinching piece 30 and the front end pinching piece 40 directly by the rotation joint part 37 so that rotation was possible, without via a connection piece.

In addition, at least a part of the base end pressing piece 30, the two connecting pieces 35 and 36, and the distal end pressing piece 40 constituting each articulated clamping member 20, 21 is hollow, and each hollow portion Are communicating. These hollow portions include a passage route (wiring route) of the first wire 50 that passes through the inside of the line connecting the rotation joint portions 37 and the shaft support portions 10 and 11, and a second wire 60 that passes through the outside. The passage route (wiring route) is formed.
In other words, in the proximal end pressing piece 30, the two connecting pieces 35 and 36, and the distal end pressing piece 40, the passage route of the first wire rod 50 and the passage route of the second wire rod 60, respectively. A void is formed.

The first wire 50 and the second wire 60 are each one, and both ends of each wire are fixed to the two tip clamping pieces 40, and each rotary joint 37, each shaft support 10, 11, the pulleys 78 a, 79 a, 78, 79 and the pulleys 82, 83 are wired along a path. That is, the wire members 50 and 60 have both ends fixed to the tip clamping pieces 40 and intermediate portions wired on the base member side.
In this example, the first wire 50 is located inside the second wire 60 over the entire length of each articulated clamping member, but a part of the first wire 50 is used as the second wire. You may wire in the parallel outer position. Further, a part of the wiring path of the second wire rod 60 may be wired at an inner position parallel to the first wire rod 50.
In short, by setting the first operating mechanism 70 in the operating state shown in FIG. 3D, the shaft support portions 10 and 11 and the rotary joints when the tension more than a predetermined value is applied to the first wire 50. When the portion 37 is rotated in the clockwise direction in FIG. 2B by the stress (tension) from the first wire rod, the articulated pinching members 20 and 21 are shown in FIG. 1A and FIG. If the pressing operation state can be achieved as in 2 (b), the wiring path of the first wire 50 is not limited.
Similarly, when the first operating mechanism 70 is in the operating state shown in FIG. 3D, the movable operating piece 6 is closed as shown in FIG. When the tension is applied, the pivotal support portions 10 and 11 and the rotary joint portions 37 are rotated in the counterclockwise direction in FIG. In such an open operation state, there is no limitation on the wiring path of the second wiring 60.

As shown in FIG. 2A, each rotating joint portion 37 is composed of two pulleys (guide members) 37b and 37c that are rotatably supported by a single common shaft 37a, and the inner side of one pulley 37b. The first wire 50 is wired to the other, and the second wire 60 is wired outside the other pulley 37c. For this reason, the first operating mechanism 70 and the second operating mechanism 80 individually pull the wire members 50 and 60 to give a predetermined or higher tension, or release the tension to release the tension. It can be done smoothly without interfering with each other.
Instead of the pulleys 37b and 37c, a low friction guide member that smoothly guides each wire may be used. That is, the guide member may not be a rotating pulley.
Each of the shaft support portions 10 and 11 also has the same configuration as each of the rotation joint portions 37.

The first operation mechanism 70 is disposed on one side of the base member 2 (on the side opposite to the fixed operation piece 3), and has a recess formed from one side of the base member toward the inside of the base member ( Hole) 71, advance / retreat piece 76 that enters into recess 71 and advances / retreats in the recess laterally (inward / outward direction), and wire rod adjustment knob 75 fixed to one end of advance / retreat piece 76, advance / retreat Two pulleys (guide members) 78 and 79 that are rotatably supported by the tip of the piece 76 and rotate freely, and an elastic member (not essential) (not shown) that urges the wire adjusting knob 75 into the recess. .
The inner end portion of the advance / retreat piece 76 is bifurcated, and pulleys 78 and 79 are disposed in the bifurcated bifurcated portion and rotatably supported.
The two pulleys 78 and 79 have different axial positions, and one pulley 78 supports the first wire rod 50 and the other pulley 79 supports the second wire rod 60. For this reason, it can prevent that wire rods interfere.
In addition, on the base member 2 opposite to the pulleys 78 and 79 with the second operation mechanism 80 interposed therebetween, other pulleys 78a and 79a whose positions are fixed are arranged so that the left articulated pinch The wires 50 and 60 extending from the pressure member 20 are wound around to change the wiring direction.
Each pulley 78, 79, 78a, 79a may not rotate, and a low friction guide member may be used instead of the pulley.

To fix the wire rod adjustment knob 75 in the immersive state as shown in FIG. 3A in a protruding state as shown in FIG. 3D, the wire rod adjustment knob 75 is manually operated against an elastic member (not shown). Is pulled out to the outside ((b)) and rotated 90 degrees as shown in (c). When the seating member 72 provided on the side surface of the base member engages the knob 77, the wire rod adjustment knob 75 can be held in a protruding state ((d)). In order to return the wire rod adjustment knob 75 to the immersive state of (a), an operation reverse to the above may be performed.
In this way, the first operating mechanism 70 applies two or more predetermined tensions to the first wire 50, whereby the two articulated clamping members 20, 21 are shown in FIG. 2B by the first wire. It is a means which makes the pinching operation state open or cancels the pinching operation state. In principle, a configuration in which no tension is applied to the second wire 60 is preferable, but a slight tension that does not adversely affect the behavior of the first wire may be applied.

The second operating mechanism 80 includes an operating piece 81 that is pivotally supported at one end by a shaft portion 6 a provided at an appropriate position below the movable operating piece 6, and a crank-shaped hollow in the operating piece 81. In the part 81a, there are two upper and lower pulleys (guide members) 82 and 83 that are rotatably arranged at different positions in the vertical direction and in the axial direction (FIG. 4). The shaft portions of the pulleys 82 and 83 are pivotally supported by operating pieces. The guide member may be a simple low friction member that can guide each wire smoothly.
A guide slit 85 is provided inside the base member 2 to guide the pulleys 82 and 83 and the shaft portion 6a along a predetermined path.

A second wire 60 is wired on the upper surface side of the outer peripheral surface of the upper pulley 82, and a second wire material 50 is wired on the lower surface of the outer peripheral surface of the lower pulley 83.
Note that the hollow portion 81a may not be configured in a crank shape unless there is a possibility that the wire rods guided by the two pulleys interfere with each other. That is, it may be linear.
As shown in FIG. 2B, when the movable operation piece 6 is in the open position in a state where a predetermined tension or more is applied to the first wire 50 by the first operation mechanism 70, it is supported by the operation piece 81. The two pulleys 82 and 83 are in the lowered position in conjunction with the movable operation piece. For this reason, when the 1st wire 50 is pushed down by the lower pulley (2nd pulley) 83, two articulated clamping members can be made into a clamping state. That is, the articulated pinching member maintains the pinching state by the force of the elastic member 7.

When the movable operation piece 6 is closed as shown in FIG. 2C, the two pulleys 82 and 83 supported by the operating piece 81 are raised in conjunction with the movable operation piece. For this reason, when the second wire 60 is pulled up by the upper pulley 82, the two articulated clamping members are opened.
As shown in FIG. 4, the shaft portion 6a is supported by two bearing members 6b protruding from the movable operation piece 6, and the upper end portion of the operating piece 81 is pivotally supported by the shaft portion 6a. Has been. A crank-shaped hollow portion 81a as shown in the figure is formed on the side surface of the operating piece 81. An upper pulley 82 is rotatably supported on the upper portion of the hollow portion, and a lower portion is formed on the lower portion of the hole. A side pulley 83 is rotatably supported. Thus, by making the vertical position and the axial direction position of the two pulleys 82 and 83 different, it is possible to prevent the two wire members 50 and 60 from interfering with each other.

  When the two articulated clamping members 20 and 21 of the clip 1 having the above configuration are mounted in the clip pocket 114 of the insulating sheet 110 shown in FIG. 8, the clip is in the neutral state shown in FIG. To. That is, even if the movable operation piece 6 is closed to the fixed operation piece 3 side by keeping the wire rod adjustment knob 75 of the first operation mechanism 70 in the recess 71 in the neutral state, Since no strong tension is applied to the wires 50 and 60, the articulated pinching members 20 and 21 do not shift to the pinching state of FIG. 2B or the open state of FIG.

That is, in the neutral state, each articulated clamping member is configured such that each pivotal support portion 10, 11 and each pivoting joint portion 37 can be rotated within a predetermined angular range. A space between the pieces 35 and 36 and the tip pinching piece 40 can be rotated relatively freely.
Therefore, as described with reference to FIG. 7, when the articulated clamping members are inserted into the two clip pockets 114 of the insulating sheet, the pivotal support portions 10 and 11 and the rotary joint portions 37 are arbitrarily rotated. Thus, the base end pressing piece 30, the two connecting pieces 35 and 36, and the distal end pressing piece 40 can be inserted after arbitrarily changing the positional relationship.
Therefore, even when the sheet body 111 is in a flat posture by the core member 125, the articulated clamping member can be easily inserted into the clip pocket and fixed by the bands 115a and 115b.

Further, even when the insulating sheet is folded in two as shown in FIG. 7B, the articulated clamping member can be easily inserted into the clip pocket and fixed by the bands 115a and 115b. Become.
When the clip 1 is fixed to the insulating sheet 110 by such a procedure and the wire rod adjusting knob 75 constituting the first operation mechanism 70 is protruded outward from the recess 71 by the procedure shown in FIG. When the wire 50 is pulled by the pulley 78, the articulated clamping members 20 and 21 are shifted to the clamping state shown in FIG. 2B, and the distal ends of the distal clamping members 40 are in pressure contact with each other. It becomes. In this state, the electric wire 130 is clamped by the two articulated clamping members 20 and 21 via the insulating sheet.

At this time, since the first wire 50 is located below the pulley 83 below the second operation mechanism 80, the first wire 50 is pushed down by the pulley 83 that is in the lowered state. More tension is applied. For this reason, the responsiveness when the 1st wire 50 transfers each articulated clamping member to a clamping state by operation which pulls out the wire adjustment knob 75 can be improved.
When the second wire 60 is wound around the pulley 79 provided on the wire rod adjustment knob 75 as in this example, even when the wire rod adjustment knob 75 protrudes as shown in FIG. The length of the second wire 60 is set to be long so that the second wire 60 is not excessively tensioned.
The second wire 60 extending from the articulated pinching member may be directly wound on the upper pulley 82 of the second operation mechanism 80 without winding the second wire 60 around the pulley 79. In this case, since the second wire is not affected by the wire adjusting knob 75, the length adjustment between the first wire and the second wire is facilitated. In this case, the pulleys 78a and 79a may be omitted.

Next, when the two articulated clamping members in the clamping state as shown in FIG. 2B are opened as shown in FIG. 2C, two operations are performed using the insulating jacket 90 shown in FIG. The pieces 3 and 6 are moved to the closed state.
When the movable operation piece 6 moves to the fixed operation piece 3 side, the operation piece 81 constituting the second operation mechanism 80 rises, and the two pulleys 82 and 83 supported by the operation piece 81 rise. For this reason, the second wire 60 is pulled up by the upper pulley 82 to open the two articulated clamping members.
By making the articulated pinching member mounted in the clip pocket of the insulating sheet open, the insulating sheet can be attached to or removed from the electric wire.
By setting the articulated clamping member in the neutral (free) state, it becomes possible to deform at each rotating joint, so that the articulated clamping member is inserted into the clip pocket on the insulating sheet side and attached. Work can be facilitated.

Further, the present invention is characterized in that the protruding direction of the fixed operation piece 3 (and the movable operation piece 6) provided on the base member can be arbitrarily set. That is, in the conventional clip shown in FIG. 7, the rear end portions 101b and 102b protrude approximately 180 degrees opposite to the protruding direction of the clamping members 101 and 102. As shown in FIG. 2, the fixed operation piece 3 and the movable operation piece 6 can be protruded in a direction (an oblique direction or a lateral direction) different from the direction opposite to the protruding direction of the articulated clamping member 180 degrees. it can.
For this reason, the protruding direction of the articulated pinching member can be set to an oblique direction or a lateral direction with respect to the extending direction (axial direction) of the entire insulating jacket. Then, the articulated clamping member is opened and closed by sandwiching the operation pieces 3 and 6 of the clip mounted on the insulating sheet with the tip of the insulating jacket, thereby facilitating the work of mounting or removing the insulating sheet on the electric wire. Can be realized.

In other words, in the conventional clip configuration as shown in FIG. 7, the clamping members 101 and 102 protrude in the same direction as the extending direction of the tip of the insulating jacket. When the worker who is placed on the wire performs the work of covering the electric wire with the insulating sheet, the work is labor-intensive unless the worker is positioned above the electric wire.
In other words, if there is an obstacle around the wire to which the insulation sheet is to be attached, the bucket must be placed in the lateral direction of the wire or at a location lower than the wire. The work that was done becomes extremely complicated.
On the other hand, in the clip of the present invention, the projecting direction of the operation pieces 3 and 6 is a lateral direction or an oblique direction with respect to the projecting direction of the articulated clamping member. For this reason, as shown in FIG. 5, when the operation pieces 3 and 6 are sandwiched between the distal ends of the insulating jacket 90, the articulated clamping member is positioned in a direction different from the extending direction of the distal end of the insulating jacket 90. . For this reason, even if the height position of the worker on the bucket is lower than that of the electric wire or in the lateral direction of the electric wire, the work of covering with the insulating sheet and clipping becomes easy.

Next, FIGS. 6A, 6B, and 6C are a front view, a plan view, and a right side view of a clip for an indirect hot wire method according to another embodiment of the present invention, and FIG. It is explanatory drawing of a state.
In this embodiment, two clips 1 can be operated at the same time by inserting a continuous operation member 92 between the fixing operation sections 3 and the movable operation section 6 and fixing them with screws. It is.
That is, the fixing operation unit 3 and the movable operation unit 6 of the clip 1 are provided with screw holes 3a and 6c in advance, and the continuous operation member 92 is screwed and fixed using the screw 95 using these screw holes. To do.
For this reason, as shown in (d), the two clips 1 fixed to the insulating sheet 1 are held by holding and releasing the two continuous operation members 92 by using one insulating yarn 90, or by releasing the holding pressure. Can be opened and closed simultaneously, and workability can be improved.

<Summary of Configuration, Action, and Effect of the Present Invention>
The clip for indirect hot wire construction method according to the first aspect of the present invention includes a base member 2 provided with a fixed operation piece 3, a movable operation piece 6 supported so as to be able to approach and separate from the fixed operation piece, and a movable operation piece. An elastic member that urges the base member in a direction away from the fixed operation piece, a base end pressing piece 30 that is rotatably supported by two shaft support portions provided on the base member, and each base end pressing piece, Two articulated pinching members 20 and 21 each having a tip pinching piece 40 pivotally supported via one or a plurality of rotating joint portions 37 provided between them, and each tip pinching force Both ends are fixed to the piece, and both ends are fixed to the first wire rod 50 having the intermediate portion wired to the base member through the rotating joints, and the tip clamping pieces, and the base is passed through the rotating joints. 2nd wire 60 which wired the middle part to a member, and base member 2 are provided, and it is predetermined on the 1st wire. A first operating mechanism 70 for applying an upper tension or releasing the tension; and a second operating mechanism for applying a tension higher than a predetermined value to the second wire rod during the closing operation of the movable operation piece, or for releasing the tension. An operating mechanism 80, and when the first operating mechanism applies a predetermined tension or more to the first wire, the two articulated clamping members come into a clamping state, and the second operating mechanism is When the tension | tensile_strength more than predetermined is provided to the 2nd wire, the two articulated pinching members will be in the open state which separated.

The articulated clamping member may be composed of only the pivot support parts 10 and 11, the proximal clamping element 30, the distal clamping element 40, and one rotating joint part 37, or a plurality of rotating joint parts. It is good also as a multi-indirect structure by using.
The first operation mechanism 70 is a means for operating the articulated pinching member by applying a tension of a predetermined value or more to the first wire 50 and operating it, and the movable operation member is in the non-operation position (open position). When two or more predetermined tensions are applied to the first wire, the two articulated pinching members 20 and 21 are in a pinching state.

The second operation mechanism 80 moves the movable operation piece 6 to the operation position (closed position) while the first operation mechanism 70 applies a tension of a predetermined value or more to the first wire. This is means for applying two or more predetermined tensions to the two wire rods 60 to open the two articulated pinching members 20 and 21.
When the tension does not exceed a predetermined value, each articulated clamping member cannot be deformed into a predetermined posture (clamping posture, released posture) using each wire 50, 60. The articulated pinching member is in a neutral (free) state as shown in FIG.
The clip pressing member can be easily attached to the clip mounting portion provided on the insulating sheet provided with the core for keeping the sheet main body flat without requiring skill.

According to the second aspect of the present invention, each of the articulated clamping members 20 and 21 has a proximal end clamping piece 30, at least one connecting piece 35, and a distal end clamping piece 40 sequentially connected via a rotating joint portion 37. The first wire rod and the second wire rod are configured to extend to the base member via the distal end pinching pieces, the connection pieces, and the proximal end pinching pieces, and the first wire rod and the second wire rod Each intermediate portion of the wire is supported on the base member side by a first operation mechanism and a second operation mechanism, respectively.
The articulated pinching members 20 and 21 may be composed of only the pivot support portions 10 and 11, the proximal end pinching piece 30, the distal end pinching piece 40, and one rotating joint portion 37, or a plurality of rotating portions. It is good also as a multi-indirect structure by using the joint part 37 and the connection piece 35. FIG.
By using the connecting piece, the articulated pinching piece can be of any length and can be rotated at any position.

According to a third aspect of the present invention, the first operating mechanism includes a wire rod adjustment knob 75 supported by a base member so as to be able to protrude and retract, and guide members 78 and 79 supported by the wire rod adjustment knob and wound around the first wire rod. The first wire rod is relaxed when the wire rod adjustment knob is in the immersive position, while a predetermined tension or more is applied to the first wire rod when the wire rod adjustment knob is in the protruding position.
The wire rod adjustment knob may be configured to be immersed (returned) to the base member side by an elastic member.

  In a fourth aspect of the invention, the second operating mechanism includes an operating piece 81 pivotally supported by a shaft portion 6a provided on the movable operating piece, and two guide members 82 and 83 disposed on the operating piece. The first wire 50 is wired to one of the two guide members, the second wire 60 is wired to the other guide member, and the first operation mechanism 70 When the movable operation piece 6 is in an open position separated from the fixed operation piece 3 in a state where a predetermined tension or more is applied to the first wire, one guide member 83 presses the first wire to one side. Thus, the two articulated clamping members can be clamped, and when the movable operation piece is in the closed position approaching the fixed operation piece, the other guide member 82 presses the second wire rod to the other. The two articulated clamping members open Characterized by a.

  DESCRIPTION OF SYMBOLS 1 ... Clip, 2 ... Base member, 3 ... Fixed operation piece, 5 ... Shaft support part, 6 ... Movable operation piece, 6a ... Shaft part, 6b ... Bearing member, 7 ... Elastic member, 10, 11 ... Shaft support part, 20, 21 ... Each articulated clamping member, 30 ... Proximal clamping piece, 35 ... Connecting piece, 35, 36 ... Connecting piece, 37 ... Rotating joint, 37a ... Common shaft, 37b ... Pulley, 37c ... Pulley, 40 ... tip clamping piece, 50, 60 ... each wire, 70 ... operating mechanism, 71 ... recess, 72 ... seating member, 75 ... wire rod adjusting knob, 76 ... advance / retreat piece, 78, 79, 78a, 79a ... pulley (guide) Member), 80 ... operating mechanism, 81 ... operating piece, 81a ... hollow part, 82, 83 ... pulley (guide member), 85 ... guide slit, 110 ... insulating sheet, 111 ... sheet main body, 113 ... clip mounting part, 114 ... clip pocket, 115a ... band, 12 ... fastening section, 121 ... surface fastener, 122 ... surface fastener, 124 ... handle, 125 ... core, 130 ... wire

Claims (4)

A base member provided with a fixed operation piece; a movable operation piece supported so as to be able to approach and separate from the fixed operation piece; and an elastic member for biasing the movable operation piece in a direction to separate the fixed operation piece from the fixed operation piece. And a base end clamping piece pivotally supported by two pivotal support parts provided on the base member, and one or a plurality of rotary joint parts provided between the base end clamping pieces. Two articulated pinching members each having a tip pinching piece pivotally supported in a rotatable manner, and both end portions fixed to the respective tip pinching pieces, and the base member passing through each turning joint portion. A first wire having an intermediate portion wired thereto, a second wire having both ends fixed to the respective tip pinching pieces, and the intermediate portion being wired to the base member via the rotary joint portions, and the base Provided on the member to apply a predetermined tension or higher to the first wire. It comprises a first operating mechanism for releasing the down, or applies a predetermined or more tension to the second wire during closing operation of the movable operation member, a second operation mechanism for releasing the tension, the,
When the first operating mechanism applies a predetermined tension or more to the first wire, the two articulated clamping members are in a clamping state in which they approach each other,
The clip for indirect hot-wire construction method, wherein the two articulated clamping members are in an open state in which the two articulated clamping members are separated when the second operating mechanism applies a predetermined tension or more to the second wire. Each of the articulated clamping members has a configuration in which the proximal clamping piece, at least one connecting piece, and the distal clamping piece are sequentially connected via the rotating joint portion,
The first wire and the second wire extend to the base member via the distal end pressing pieces, the connection pieces, and the proximal end pressing pieces,
The intermediate portions of the first wire and the second wire are supported by the first operation mechanism and the second operation mechanism, respectively, on the base member side. The clip for indirect hot wire construction method according to 1. The first operation mechanism includes a wire rod adjustment knob that is supported by the base member so as to freely move in and out, and a guide member that is supported by the wire rod adjustment knob and wound around the first wire rod,
The first wire rod is relaxed when the wire rod adjustment knob is in the retracted position, and a predetermined tension or more is applied to the first wire rod when the wire rod adjustment knob is in the protruding position. Item 2. The indirect hot wire method clip according to Item 1. The second operating mechanism has an operating piece pivotally supported by a shaft provided on the movable operating piece, and two guide members arranged on the operating piece,
One of the two guide members is wired with the first wire, and the other guide member is wired with the second wire,
When the movable operation piece is in an open position separated from the fixed operation piece in a state where a predetermined tension or more is applied to the first wire by the first operation mechanism, one of the guide members is the first member. The two articulated clamping members can be brought into a clamping state by pressing one of the wires to one side,
When the movable operation piece is in the closed position approaching the fixed operation piece, the other guide member presses the second wire rod against the other, thereby opening the two articulated clamping members. The clip for indirect hot wire method as described in any one of Claims 1 thru | or 3 characterized by the above-mentioned.

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