JP5903146B1 - Insulating sheet holding member and method for attaching insulating sheet to charging section - Google Patents

Abstract

It is possible to suppress a decrease in insulation by winding an insulating sheet around a charging part, and to perform the winding operation easily and quickly. A connecting portion 4 attached to the tip of an insulating operating rod 3 and a portion below the charging portion 18 of the insulating sheet 1 attached to the connecting portion 4 and hung on the charging portion 18 in the thickness direction of the insulating sheet 1 The support rod 5 is pressed from one side, and the support rod 5 is insulated when the lower end portion of the insulating sheet is gripped by an indirect hot wire tool and lifted so as to be wound up to one side in the thickness direction of the insulating sheet. By pressing the insulating sheet 1 in the radial direction along the surface of the sheet 1, the shaft 3 </ b> X of the insulating operating rod 3 is attached to the tip of the insulating operating rod 3 so as to be a fulcrum for winding up the insulating sheet 1. It extends in the direction that intersects. [Selection] Figure 1

Description

  The present invention relates to an insulating sheet pressing member used when winding up an insulating sheet on a charging unit in an energized state such as an electric wire or a brace, and a method for attaching the insulating sheet to the charging unit.

  Conventionally, when performing an indirect hot wire operation with an indirect hot wire tool, the charging part is covered with an insulating sheet so that the tip of the indirect hot wire tool does not come into direct contact with the charged part such as an electric wire or a brace. ing. As such an insulating sheet, an insulating sheet with a clip has already been proposed (see, for example, Patent Document 1).

  The insulating sheet with a clip includes an insulating sheet folded in half having a bent portion at the lower end so that the upper end can be opened, and a pair of clips for holding the insulating sheet in a closed state. Each of the clips includes a pair of openable and closable holding portions for holding the electric wire from both the left and right sides of the insulating sheet, a biasing portion for biasing the pair of holding portions toward the closing side, and a downward extension from the pair of holding portions. And a pair of operation units gripped by a pair of gripping units provided at the tip of the indirect live tool. Then, by closing the pair of gripping portions from the state in which the pair of operation portions are gripped by the pair of gripping portions of the indirect live tool, the pair of operation portions approach and the pair of sandwiching portions separate, thereby insulating sheet The electric wire which is a charging part can be located in an insulating sheet | seat by opening the upper end of. By removing the pair of gripping parts of the indirect hot wire tool from the pair of operation parts from this state, the pair of holding parts is closed by the urging force of the urging part, and the electric wire is maintained in a state of being sandwiched between the insulating sheets.

JP 2014-121161 A

  According to the said structure, since only the electric wire is pinched | interposed with the insulating sheet, an electric wire cannot fully be covered and insulation may fall. In addition, the pair of gripping portions of the indirect live tool may slip when gripped by the pair of operation portions, and the operation of approaching and separating the pair of operation portions cannot be performed smoothly. Further, since the pair of holding portions are closed by the urging portion and the electric wire is held between the insulating sheets, it is necessary to make the urging force large to some extent. Therefore, when operating to open the insulating sheet against the biasing force of the biasing part using an indirect hot wire tool, a large operating force is required and labor is required, and there is room for improvement. .

  Therefore, the present invention can suppress a decrease in insulation by winding the insulating sheet around the charging unit, and can easily and quickly perform the winding operation on the insulating sheet pressing member and the charging unit. It is an object to provide a method for mounting an insulating sheet.

  An insulating sheet pressing member according to the present invention is a connecting portion that is attachably connectable to the tip of an insulating operation rod, and a support rod that is directly or indirectly attached to the connecting portion, and covers a charging portion that is energized. And a support rod for pressing down a portion of the insulating sheet hung from the charging portion on the charging portion from one side in the thickness direction of the insulating sheet, and the support rod has a lower end portion of the insulating sheet. When the insulating sheet is lifted so as to be gripped with an indirect hot wire tool and wound up to one side in the thickness direction of the insulating sheet, the insulating sheet is formed by pressing the insulating sheet along the surface of the insulating sheet and in the radial direction. It is characterized by extending in a direction intersecting with the axis of the insulating operation rod in a state of being attached to the tip of the insulating operation rod so as to be a fulcrum for winding the sheet.

  According to such a configuration, the insulating sheet is pressed by pressing the portion below the charging portion of the insulating sheet from one side in the thickness direction of the insulating sheet with the support rod extending in the direction intersecting the axis of the insulating operation rod. When the lower end portion of the insulation sheet is lifted so as to be rolled up to one side in the thickness direction of the insulating sheet by using an indirect hot wire tool, the insulating sheet is rotated smoothly and quickly with the portion below the charging portion of the insulating sheet as a fulcrum. Can do. Thereby, an insulating sheet can be immediately hold | gripped with an indirect hot wire tool, and it can wind around a charging part easily and rapidly. And it can suppress that insulating property falls by winding an insulating sheet around a charging part.

  Further, the insulating sheet pressing member according to the present invention is configured such that the attachment angle of the connecting portion with respect to the insulating operation rod can be changed so that the attachment angle of the support rod with respect to the insulating operation rod is variable. Also good.

  As described above, since the angle of the support bar with respect to the insulating operation bar can be freely changed, the support bar with respect to the insulating sheet can be directed in a desired direction regardless of the position of the operator with respect to the insulating sheet. In addition, the support rod can be directed in a direction that does not intersect the insulating operation rod, that is, a direction along the insulating operation rod. For example, the insulating sheet pressing member can be easily transported.

  Further, the insulating sheet pressing member according to the present invention has a bifurcated shape in which the support rod can sandwich a portion below the charging portion of the insulating sheet hung on the charging portion from both sides in the thickness direction of the insulating sheet. It may be configured.

  As described above, if the support bar is configured in a bifurcated shape that can sandwich the insulating sheet from both sides in the thickness direction of the insulating sheet, the insulating sheet is sandwiched between the supporting bars without using an indirect hot wire tool. By simply moving the support rod, the insulating sheet can be wound directly around the charging unit, and workability can be improved.

  In addition, the method of attaching the insulating sheet to the charging unit according to the present invention includes a support rod at a lower part of the charging unit of the insulating sheet hung on the charging unit so as to cover the charging unit in an energized state. The insulating sheet gripped at the lower end with an indirect hot wire tool while being applied in the radial direction along the surface of the insulating sheet is characterized in that the supporting rod is wound up as a fulcrum for winding.

  As described above, the lower end of the insulating sheet is gripped with an indirect hot wire tool by applying the support rod to the lower portion of the insulating sheet charging unit along the surface of the insulating sheet and in the radial direction. Thus, when the insulation sheet is lifted so as to be wound up to one side in the thickness direction, the insulation sheet can be smoothly and rapidly rotated with a portion below the charging portion of the insulation sheet as a fulcrum. Thereby, an insulating sheet can be immediately hold | gripped with an indirect hot wire tool, and it can wind around a charging part easily and rapidly. And it can suppress that insulating property falls by winding an insulating sheet around a charging part.

  As described above, according to the present invention, since the insulating sheet can be wound around the charging unit by pressing the insulating sheet with the support rod, it is possible to suppress the deterioration of the insulation, and the winding thereof. It is possible to provide an insulating sheet pressing member capable of easily and quickly performing an operation and a method for attaching the insulating sheet to the charging unit.

The front view which is pressing down an insulating sheet with the insulating sheet pressing member concerning one embodiment of the present invention is shown. The principal part of the insulation sheet pressing member is shown, (a) is a side view and (b) is a front view. It is a disassembled front view of the insulating sheet pressing member. (A), (b), (c) is explanatory drawing which shows the procedure which winds an insulating sheet. The front view which has pressed the insulating sheet with the insulating sheet pressing member which changed the angle of the support bar with respect to the insulation operation bar is shown. It is a perspective view which has pinched | interposed the insulating sheet with the bifurcated support rod. (A), (b), (c) is explanatory drawing which shows the procedure which winds an insulating sheet with a bifurcated insulating sheet pressing member.

  The insulating sheet pressing member according to the present invention will be described with reference to the drawings. FIG. 1 shows a state in which the insulating sheet 1 is pressed by the insulating sheet pressing member 2, and the upper end portion of the insulating sheet pressing member 2 is shown in FIGS. 2 (a), (b) and FIG. 3.

  The insulating sheet pressing member 2 includes a long insulating operation rod 3, a connecting portion 4 that can be connected to the tip of the insulating operating rod 3, and a support rod 5 attached to the connecting portion 4.

  The insulating operation rod 3 is made of an insulating material such as FRP, and is made of rubber (insulating material) provided at two locations, a cylindrical main body 3A having a hollow cylindrical shape inside and an intermediate portion of the cylindrical main body 3A. And the collar portion 3B. The insulating operation rod 3 is also called a common operation rod, and can be configured as a rod-shaped member having another function by replacing the connecting portion 4 with another connecting portion.

  Further, a recessed portion 6A (see FIG. 2A) is formed at the distal end portion 6 of the insulating operation rod 3 so that the connecting portion 4 can enter and overlap.

  The connecting portion 4 enters the recess 6A of the distal end portion 6 of the insulating operating rod 3 and is connected to the distal end portion 6 of the insulating operating rod 3, and extends above the connecting portion main body 4A and the support rod 5. Is provided with a mounting portion 4B. The connecting portion main body 4A is configured to be approximately half the thickness of the attachment portion 4B. When the connecting portion main body 4A enters the concave portion 6A, the connecting portion main body 4A eats outward from the outer shape of the insulating operation rod 3. I try not to see it out.

  The support bar 5 is formed using an insulating material such as FRP, and is formed in a rod shape having a circular outer shape (which may be a square or a polygon). The support bar 5 is formed in the through hole 4K formed in the attachment portion 4B of the connecting portion 4. It penetrates and is fixed with an adhesive (or a screw). The longitudinal direction of the support bar 5 is set in a direction intersecting (orthogonal in the drawing) with respect to the axis 3X of the insulating operation bar 3. Therefore, the support bar 5 is in a state substantially along the extending direction (longitudinal direction) of the arm metal 18 to be described later, that is, in a posture parallel to the longitudinal direction of the arm metal 18 (may be substantially parallel), and the insulating sheet 1 has a diameter. You can hold in the direction.

  A star seat portion 7 is provided between the connecting portion 4 and the tip portion 6 of the insulating operation rod 3. The seat portion 7 includes a large number of connecting portion side protrusions 8A formed on the mating surface 8 of the connecting portion 4 with the tip portion 6 of the insulating operation rod 3, and a connecting portion main body 4A of the tip portion 6 of the insulating operation rod 3. And a large number of insulating operation rod side projections 9A formed on the mating surface 9.

  A large number of connecting portion side protrusions 8A are formed at predetermined intervals on the outer peripheral edge of the mating surface 8 of the connecting portion main body 4A. Each connecting portion side protrusion 8 </ b> A extends in the normal direction and protrudes toward the distal end portion 6 side of the insulating operation rod 3.

  A large number of insulating operation rod side protrusions 9A are formed at predetermined intervals on the outer peripheral edge of the distal end portion of the insulating operation rod 3 so as to enter and engage between the adjacent connection portion side protrusions 8A and 8A in the circumferential direction. Each insulating operation rod side protrusion 9A extends in the normal direction and protrudes toward the distal end portion 6 side of the insulating operation rod 3 in the same manner as the connecting portion side protrusion 8A.

  A screw hole 11 into which the butterfly screw 10 is screwed is formed at a substantially central portion of the distal end portion 6 of the insulating operation rod 3, while insertion of the screw portion 10A of the butterfly screw 10 is allowed in the connecting portion main body 4A. A vertically oriented (vertical direction) notch 4H is formed. Therefore, by loosening the butterfly screw 10, the rotation angle of the connecting portion 4 with respect to the insulating operation rod 3 can be changed, and the attachment angle of the support rod 5 with respect to the insulating operation rod 3 can be made variable. After that change, the head 10B of the butterfly screw 10 presses the connecting portion main body 4A against the tip portion 6 by tightening the butterfly screw 10 again. Can be fixed in a state of changing. By configuring in this way, for example, the mounting angle of the support bar 5 with respect to the insulating operation bar 3 is 90 degrees (in a direction orthogonal to the axis 3X of the insulating operation bar 3) shown in FIG. As shown in FIG. 5, the angle can be changed to approximately 120 degrees (the angle is not limited to this angle). By configuring in this way, the orientation of the support bar 5 with respect to the insulating sheet 1 is changed to a desired direction only by changing the attachment angle of the connecting portion 4 to the insulating operation bar 3 regardless of the position of the operator with respect to the insulating sheet 1. Can be directed. In FIG. 5, since the operator is moving away from the insulating sheet 1 to the left side of FIG. 5 than in FIG. 1, the insulation operating rod 3 is set to approximately 120 degrees, but conversely, the work is performed on the right side of FIG. When the person is located, the insulating operation rod 3 can be set to approximately 60 degrees, for example. In addition, the direction of the support bar 5 can be changed with respect to the operation bar 3 so that the axis of the insulating operation bar 3 and the central axis 5X of the support bar 5 are in the same direction. For example, it is easy to carry the insulating sheet pressing member 2.

  Since the indirect hot wire tool 12 is general, it will be briefly described. As shown in FIG. 1, the indirect hot wire tool 12 includes a pair of metal gripping portions 13 and 14 that can be freely opened and closed at the tip thereof. One gripping portion 13 of these gripping portions 13, 14 constitutes a fixed-side gripping portion attached to the tip of the fixed rod 15. The proximal end portion of the other gripping portion 14 is attached to the distal end portion of the fixed rod 15 so as to be swingable around the shaft 17. The other gripping portion 14 is connected to the tip of the operation rod 16 and is always urged to the open side by a spring (not shown). Therefore, the operating rod 16 is pulled by holding an operating lever (not shown). As a result, the other gripping portion 14 is swung around the shaft 17 and the pair of gripping portions 13 and 14 can be closed.

  A procedure for winding the insulating sheet 1 around the armor 18 that is a charging unit (a method for attaching the insulating sheet to the charging unit (armor 18)) using the insulating sheet pressing member 2 configured as described above will be described.

  First, the insulating sheet pressing member 2, the required number of insulating sheets 1, and the indirect hot wire tool 12 are moved to the vicinity of the arm metal 18 on which the insulating sheet 1 is to be wound. Thereafter, the insulating sheet 1 is hung on the arm metal 18 from above, and the arm metal 18 is sandwiched between the insulating sheets 1 (see FIG. 1). When the insulating sheet 1 is hung on the arm metal 18 from above, the insulating sheet is folded on the arm metal 18 with two or more folds, or hung on the arm metal 18 so as to cover the arm metal 18 without crease. May be. In this way, a portion below the arm metal 18 of the insulating sheet 1 hung on the arm metal 18 (a position immediately below the arm metal 18, a position shown in FIG. 1) is one side in the thickness direction of the insulating sheet 1 (FIG. 1). Then, the sheet is pressed by the support bar 5 of the insulating sheet pressing member 2 from the paper surface side. At this time, the support bar 5 is parallel to the direction in which the central axis 5X extends along the surface of the insulating sheet 1, that is, the direction in which the arm metal 18 extends (see FIG. 1). In this state, the lower end portions of the pair of sheet portions 1A and 1A of the insulating sheet 1 hanging downward from the arm metal 18 are gripped by the indirect hot wire tool 12 as shown in FIGS. It lifts so that it may wind up to the thickness direction one side of the insulating sheet 1 from the hold | gripped state (refer FIG.4 (b)). At this time, the insulating sheet 1 can be rotated smoothly and quickly with a portion near the arm metal 18 holding the insulating sheet 1 as a fulcrum. Thereby, the insulating sheet 1 can be immediately gripped by the indirect hot wire tool 12 and can be easily and quickly wound around the armature 18. And it can suppress that insulating property falls by winding the insulating sheet 1 around the brace 18.

  After the insulating sheet 1 is wound around the brace 18, the insulating sheet 1 is wound with the required number of clips 19 (only one is shown in FIG. 4C) as shown in FIG. 4C. So that it can be held in a wet state. Instead of the clip 19, the insulating sheet 1 can be held in a state where the tape is wound around. Note that the support rod 5 between which the insulating sheet 1 is wound and sandwiched between the insulating sheets 1 is wound before the sandwiching of the insulating sheet 1 wound with the clip 19 from the state of FIG. After the insulating sheet 1 is sandwiched (the state in FIG. 4C), it is pulled out at any timing. The clip 19 is a general one, and as shown in FIG. 4C, a substantially central position in the longitudinal direction of the pair of sandwiching members 19A, 19A is a fulcrum portion 19K, and one side of the fulcrum portion 19K (FIG. 4 ( In c), holding portions 19a and 19a are provided on the upper side), and holding portions 19b and 19b are provided on the other side (lower side in FIG. 4C). And the clamping parts 19a and 19a of these pair of clamping members 19A and 19A are made openable and closable, and an elastic member (not shown) that biases the clamping parts 19a and 19a in the closing direction is provided. Accordingly, the holding portions 19a and 19a closed by the elastic member are switched to the open state by manually operating the grip portions 19b and 19b against the urging force of the elastic member. When the insulating sheet 1 is inserted between the sandwiched portions 19a and 19a in the opened state and the hands are released from the gripping portions 19b and 19b, the sandwiched portions 19a and 19a are closed by the urging force of the elastic member, as shown in FIG. It becomes a state.

  The insulating sheet pressing member according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

  For example, the single support bar 5 can be configured as shown in FIG. That is, the support bar 5 is configured in a bifurcated shape in which the insulating sheet 1 folded in two on the armature 18 that is a charging unit can be sandwiched from both sides in the thickness direction. More specifically, the support rod 5 is composed of a rod-like portion 5A that is inserted and fixed to the connecting portion 4, and a pair of substantially parallel sandwiching portions 5B and 5B that bifurcate from the rod-like portion 5A. . In this way, since the insulating sheet 1 can be sandwiched between the bifurcated support rods 5, as shown in FIG. 7A, the insulating sheet 1 is sandwiched between the bifurcated support rods 5 as shown in FIG. As shown in b), the insulating sheet 1 can be directly wound (wound up) around the arm metal 18 simply by moving the support bar 5 upward. Therefore, the workability can be improved by winding the insulating sheet 1 around the arm metal 18 without using an indirect hot wire tool. However, as with the single support bar 5, the work is insulated with the bifurcated support bar 5. The insulating sheet 1 may be wound around the brace 18 by holding the sheet 1 and gripping and lifting the lower end of the insulating sheet 1 with the indirect hot wire tool 12. As shown in FIG. 7B, after the insulating sheet 1 is wound around the armature 18, as in FIG. 4C, the insulating sheet 1 wound by the clip 19 is sandwiched and fixed (see FIG. 7B). 7 (c)). The clip 19 has the same configuration as the clip of FIG.

  In the above embodiment, the insulating sheet pressing member 2 is configured to be movable so that the angle of the support bar 5 can be changed with respect to the insulating operation bar 3, but may be configured to be fixed so that the angle cannot be changed.

  Moreover, in the said embodiment, although it was the structure which attached the support bar 5 directly to the connection part 4, the structure which attaches the support bar 5 to the connection part 4 indirectly via another member may be sufficient.

  Moreover, although the said embodiment demonstrated and demonstrated the brace 18 as an example as a charging part, it is good also considering an electric wire, a lever, etc. as a charging part.

  In the above-described embodiment, the pair of sheet portions 1A, 1A are hung on the arm metal 18 so that the lower ends thereof are substantially the same height in the vertical direction, and both the sheet portions 1A, 1A are wound around the arm metal 18. However, the insulating sheet 1 is hung on the arm metal 18 with the lengths of the sheet portions 1A and 1A changed so that the lower end of one sheet portion 1A is positioned below the lower end of the other sheet portion 1A. The short sheet portion 1A is pressed by the support bar 5, and only the lower end of the longer sheet portion 1A is held by the indirect hot wire tool 12 so that the longer sheet portion 1A is wound around the arm metal 18. May be.

  Moreover, in the said embodiment, although the front-end | tip part 6 of the insulation operation rod 3 showed what was attached to the insulation operation rod 3 integrally, the front-end | tip part 6 is detachable with respect to the insulation operation part 3, for example. It may have a configuration. Specifically, a twist lock structure capable of connecting the tip 6 to the tip of the insulation operation unit 3 by simply inserting the tip 6 into the tip of the insulation operation unit 3 and rotating it can be implemented.

  DESCRIPTION OF SYMBOLS 1 ... Insulation sheet | seat, 1A ... Sheet | seat part, 2 ... Insulation sheet | seat pressing member, 3 ... Insulation operation rod, 3A ... Cylindrical main body, 3B ... Gutter part, 3X ... Axis center, 4 ... Connection part, 4A ... Connection part main body, 4B ... mounting portion, 4K ... through hole, 5 ... support rod, 5A ... rod-like portion, 5B ... clamping portion, 5X ... central axis, 6 ... tip, 6A ... recess, 7 ... chrysanthemum portion, 8 ... mating surface, 8A ... Connection portion side protrusion, 9... Mating surface, 9A .. Insulating operation rod side protrusion, 10... Wing screw, 10A ... Screw portion, 10B ... Head, 11 ... Screw hole, 12 ... Indirect hot wire tool, 13, 14. Gripping part, 15 ... fixed rod, 16 ... operating rod, 17 ... shaft, 18 ... arm, 19 ... clip, 19A, 19A ... clamping member, 19K ... fulcrum part, 19a ... clamping part, 19b ... gripping part

Claims (4)

A connecting portion attached to the tip of the insulating operation rod so as to be connectable, and a support rod attached directly or indirectly to the connecting portion, the insulation hung on the charging portion so as to cover the charged portion in the energized state A support bar for pressing the lower part of the sheet charging portion from one side in the thickness direction of the insulating sheet;
When the support rod is lifted so that the lower end portion of the insulating sheet is gripped by an indirect hot wire tool and wound up to one side in the thickness direction of the insulating sheet, the center axis is along the surface of the insulating sheet and has a diameter. By extending the insulating sheet in a direction, it extends in a direction intersecting with the axis of the insulating operating rod in a state of being attached to the tip of the insulating operating rod so as to be a fulcrum for winding up the insulating sheet An insulating sheet pressing member characterized by being provided.   2. The insulation according to claim 1, wherein the connection portion is configured such that an attachment angle of the support rod to the insulation operation rod is variable so that an attachment angle of the support rod to the insulation operation rod is variable. Sheet pressing member.   2. The support rod is configured in a bifurcated shape capable of sandwiching a portion of the insulating sheet below the charging portion of the insulating sheet hung on the charging portion from both sides in the thickness direction of the insulating sheet. Or the insulating sheet pressing member of 2.   A state in which a support rod is applied along the surface of the insulating sheet in the radial direction to the lower portion of the charging portion of the insulating sheet hung on the charging portion so as to cover the charging portion in the energized state A method of mounting an insulating sheet on a charging unit, wherein the insulating sheet gripped at the lower end with an indirect hot wire tool is wound up with the support rod as a fulcrum for winding.

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