JP5654076B2 - Retaining grip and its mounting method - Google Patents

Description

  The present invention provides a holding grip for fixing a high-voltage underline branched from the high-voltage line to a holding insulator installed in a predetermined portion of the electric pole when the high-voltage line hung on the upper part of the electric pole is pulled downward. The present invention relates to an attachment method for attaching the retaining grip to a locked portion.

  When wiring the high voltage underline 104 from the high voltage distribution line 102 installed on the arm metal 101 of the distribution pole 100 to the transformer 103, as shown in FIG. 5 (a), near the end of the arm metal 101. The high-voltage underline drawn metal 105 and 106 are attached, and the drawing insulators 110 and 111 are installed therein, and the high-voltage underlining 104 is fixed to the drawing insulators 110 and 111 (see Patent Document 1).

  FIG. 5B shows a fixed state of the high-voltage underline 104 on the upper side retainer insulator 110. The high-voltage underline 104 is hung from the upper side of the tension insulator 110 so as to form a slack, and the portions of the high-pressure underline 104 that hang down from both sides so as to straddle the tension insulator 110 are bundled by the retention grip 120, thereby 110 is fixed.

The conventional retaining grip 120 is a copper wire coated with vinyl, and as shown in FIG. 6A, a ring-shaped locking base 121 for sandwiching a small-diameter portion of the retaining lever 110, and this engagement base. A pair of winding portions 122 that extend from the stop base 121 so as to gradually spread in two directions and are formed in a wavy shape, as shown in FIG. A portion (the base portion of the pair of winding portions 122) that extends to the winding portion 122 of the locking base 121 is separated and the small-diameter portion of the retaining lever 110 is inserted into this portion. A small diameter portion 110 is arranged in the locking base 121, and a high-voltage underline 104a extending from the high-voltage distribution line 102 so as to be loosened and a high-voltage underline 104b hanging downward from the retaining insulator 110 are overlapped with a double-line portion. Winding times And, and so as to wound a few more times about the take only the high pressure cuts lines 104b further at the lower side of the multi-line portion.
The fixing of the high-voltage underline 104 to the lower drawing insulator 106 is a structure in which the fixing structure to the above upper drawing insulator 105 is turned upside down.

JP 2008-92687 A

  However, in the conventional tension grip described above, the pair of winding portions are expanded to widen the gap between the root portions, and the small diameter portion of the tension lever is arranged in the locking base so that the tension lever is inserted therebetween. 5 (b), it can be attached to any direction perpendicular to the axis from any direction, but it can be attached between the high-voltage underline drawn metal 105. In the central retaining lever 110 located at the center, the arm metal 101 is in the way, so that the grip grip 120 is brought close to the armature 101 so as to sandwich the retaining insulator from the front surface in the axial direction of the arm metal 101 (see FIG. 6 (b)), by inserting the upper winding part 120 between the high-voltage underline drawn metal 105 and passing the lower winding part 120 below the retaining insulator 110, Have only to place the small diameter portion of the distillate insulator 110 in the locking base 121, the mounting operation of the anchor grip were those awkward.

  The present invention has been made in view of such circumstances, and it is a main object of the present invention to provide a retaining grip that can be easily attached to a locked portion regardless of the attachment location and that improves work efficiency. It is an issue.

In order to achieve the above object, a retaining grip according to the present invention includes an open portion opened at a central angle within a predetermined angle range, and is locked to a locked portion disposed inside through the open portion. A locking base portion that is curved as possible, a winding portion that extends from the locking base portion and has a wave-shaped front end, and a shaft support portion that is provided at a transition portion from the locking base portion to the winding portion. And a pair of grip members adjacent to the shaft support portion and radially projecting from the root portion of the winding portion, and the grip members are connected to each other of the locking base portions. A shaft member is engaged with the shaft support portion so that the open portion faces the opposite side, and is rotatably connected.

Accordingly, in the retaining grip, the two grip members are rotatably combined by the shaft member engaged with the shaft support portion, and the locking base portion is opened by moving the distal end side of the winding portion closer (separating and approaching). Since the part is formed so that it can be opened and closed, when attaching the retaining grip to the locked part, the tip side of the pair of winding parts is separated and the open part of each locking base part is faced apart. In this state, the locked part can be arranged between them, and after the locked part is arranged between the locking bases, the front end side of the winding part is brought close to the locked part. The part can be arranged inside the locking base through the open part of the locking base , and each locking base can be locked to the locked part. For this reason, since it is not necessary to guide a to-be-latched part between a pair of winding parts, it becomes possible to latch a latching base to a to-be-latched part even in a narrow space.

  Further, in the above-described retention grip, assuming that indirect hot-line work is performed in particular, the grip portion is extended to the opposite side of the opening portion of the locking base, and the grip members are connected to the pivot support portion. It is preferable that they overlap each other when they are rotated away from each other with the open portion of the locking base facing each other.

  By adopting such a configuration, the grip member is rotated so that the open portion of the locking base is separated so that the grip portions are overlapped with each other. The holding grip can be approached to the locked portion while maintaining the gripped state, and the gripping portion of the gripping portion by the indirect hot-line gripping tool can be approached while the locked portion is disposed between the locking base portions. By releasing the gripping state, the grip member rotates by its own weight so that the grip member comes close to the front end side of the winding portion, and the locking base of each grip member is locked to the locked portion. The Rukoto.

  Therefore, as a method for attaching the retaining grip using the retaining grip, the retaining grip according to claim 2 is attached to the locked portion, and the pair of grip members are attached to each other around the shaft support portion. Rotating the open portions of the locking bases so as to face each other so as to overlap each other and holding the overlapped gripping portions with an indirect hot-line gripping tool; In a state of gripping with the indirect live wire gripping tool, approaching the pair of grip members to the locked portion, and placing the locked portion between the locking bases of the pair of grip members; In a state where the locked portion is disposed between the locking base portions of the pair of grip members, the gripping state of the gripping portion by the indirect live wire gripping tool is released, and each winding The tip portion due to the weight of the winding unit may comprise a step of close by rotating about said shaft support.

  In addition, the above-described retention grip is configured by processing one wire rod for the locking base portion, the winding portion, and the shaft support portion of each grip member in order to simplify the structure, It is preferable that the gripping portion is configured to be sheathed on the wire.

  As described above, according to the retaining grip according to the present invention, the locking base portion that is curved so as to be locked to the locked portion, and the winding that extends from the locking base portion and is formed in a wave shape on the tip side. And a pair of grip members having a shaft support portion provided at a transition portion from the locking base portion to the winding portion, and a grip portion projecting radially from the root portion of the winding portion in the vicinity of the shaft support portion The pair of grip members are rotatably coupled by engaging the shaft member with the shaft support portion so that the open portions of the mutual locking base portions face the opposite side. When attaching the retaining grip to the door, it is not necessary to guide the locked part between the pair of winding parts, so that the locking base can be locked to the locked part even in a narrow space, and the grip is attached. Easily attach the grip to the retaining insulator regardless of location Rukoto it is, it becomes possible to improve the work efficiency.

Further, in such a configuration, the gripping portion extends to the opposite side to the opening portion of the locking base portion, and the grip members rotate around the shaft support portion so that the opening portion of the locking base portion faces each other. In this case, it is possible to easily perform the operation of attaching the retaining grip to the locked portion by using an indirect hot wire gripping tool, particularly by overlapping.
In addition, the locking base, winding part, and shaft support part of each grip member are configured by processing a single wire, and the gripping part is configured by covering the wire, thereby complicating the structure. Can be avoided, and the manufacture is facilitated.

FIG. 1 is a front view showing a configuration example of a retaining grip according to the present invention. FIG. 2 is a view showing components of the retaining grip according to the present invention. FIG. 3 is a view showing a state in which the grip member is rotated so as to separate the winding portions of the grip members of the retaining grip according to the present invention. FIG. 4 is an explanatory view illustrating an operation process for attaching the retaining grip according to the present invention to the retaining insulator. FIG. 5 is a diagram showing the structure of the upper part of the utility pole, where (a) is a side view thereof and (b) is a front view thereof. Fig.6 (a) is a figure which shows the conventional retention grip, FIG.6 (b) is a figure explaining the operation | work which attaches the conventional retention grip to a retention insulator.

  Embodiments of the present invention will be described below with reference to the drawings.

1 to 3, the retaining grip 1 according to the present invention is configured by combining two grip members 2, and each grip member 2 is a small-diameter portion of a retaining lever 110 constituting a locked portion. A locking base 3 that is curved so as to be locked to 110 a, a winding portion 4 that extends from the locking base 3 and has a wave-shaped tip side, and a transition from the locking base 3 to the winding portion 4. The shaft support portion 5 provided in the portion and the grip portion 6 provided in the vicinity of the shaft support portion 5 and projecting in the radial direction at the root portion of the winding portion 4 are configured.
In each grip member 2, the locking base portion 3, the winding portion 4, and the shaft support portion 5 are formed by processing one highly rigid wire, and the grip portion 6 is attached to the wire. Yes.

  The locking base 3 is formed to have a radius of curvature approximately equal to or slightly larger than the diameter of the small-diameter portion 110a of the retaining lever 110, is formed in an arc shape with a central angle of about 270 degrees, and has a central angle of about 90 degrees. The range is an open part.

  The winding portion 4 extends in a radial direction from the center of the locking base 3 on a plane including the locking base 3, and a linear portion 4 a in which the root portion of the winding portion 4 is formed linearly. And a wavy portion 4b formed in a wavy shape from the middle to the tip.

  The shaft support part 5 is formed so that the base end of the locking base part 3 is rotated once around an axis perpendicular to the plane including the locking base part 3 and is directly transferred to the winding part 4. Thus, the inner diameter of the shaft member 10 to be described later can be inserted.

  Then, the pair of grip members 2 are configured such that the shaft support portions 5 are overlapped so that the open portions of the locking base portions 3 face each other and the shaft members 10 are inserted into the respective shaft support portions 5. The shaft support 5 (shaft member 10) is connected to be rotatable. Although the shaft member 10 is not particularly limited, the shaft member 10 is formed of a member that allows the pair of grip members 2 to be relatively rotatable and does not come out of a connected state. For example, a flat rivet or the like is used. You may do it.

  A gripping portion 6 is sheathed at a position close to the shaft support portion 5 at the root portion of the winding portion 4 (the root portion of the linear portion 4a). The gripping portion 6 includes a cylindrical portion 6a through which the linear portion 4a is inserted and a gripping plate 6b projecting radially from the cylindrical portion 6a. The cylindrical portion 6a is linear. It is fixed so as not to move in the axial direction by press-fitting at the base portion of the portion 4a or by an adhesive.

  This gripping part 6 (grip plate 6b) is extended to the opposite side of the open part of the locking base 3, and is set to a size that can be gripped by the indirectly active gripping tool 50, as shown in FIG. In a state where the end portions of the winding portion 4 are largely separated (in a state where the opening portion of the locking base portion 3 is largely separated while being opposed), they overlap each other.

  The shape of the gripping plate 6b of the gripping portion 6 is not particularly limited, but the end portion of the winding portion 4 is largely separated as shown in FIG. However, it is preferable to set the shape so that the area where they overlap each other is maximized in a state of being far apart.

  In the above configuration, in order to attach the retaining grip 1 to the small-diameter portion 110a of the retaining insulator 110 arranged between the high-voltage underline retained objects 105, as shown in FIG. The opening portions of the respective locking bases 3 are rotated so as to face each other while being opposed to each other, and the pair of gripping portions 6 are overlapped. Then, the overlapped gripping portion 6 is gripped by an indirect hot wire gripping tool 50 such as an insulating Yatsuko, and in this state, as shown in FIG. The small-diameter portion 110a of the retaining insulator 110 is disposed between the pair of locking base portions 3 as it is close to the small-diameter portion 100a.

Thereafter, while maintaining the state in which the small diameter portion 110a of the retaining lever 110 is disposed between the locking base portions 3 of the pair of grip members 2, the gripping state of the gripping portion 6 by the indirect live wire gripping tool 50 is released, and each winding The tip part of the attaching part 4 is brought close to each other by rotating each grip member 2 around the shaft support part by the weight of the winding part 4 (FIG. 4B). As a result, the retaining grip 1 is in the state shown in FIG. 1, and the small-diameter portion 110 a of the retaining lever 110 is arranged inside the locking base 3 via the opening portion of the locking base 3 , and a pair of locking bases 3. In the state where the small diameter portion 110a of the retaining lever 110 is disposed between the retaining base portions 3, the retaining base portions 3 of the respective grip members 2 are locked to the small diameter portion 110a, and the attachment of the retaining grip 1 to the retaining lever 110 is completed. .

  After that, as usual, the pulling wire is hung around the retaining insulator 110 so as to form a slack from above, and the portions hanging from both sides of the retaining insulator 110 are bundled by the retaining grip 1 to the retaining insulator 110. Secure the pull-down line.

  Therefore, according to the above configuration, when attaching the retaining grip 1 to the small-diameter portion 110a of the retaining lever 110, it is not necessary to guide the retaining lever 110 between the pair of winding portions 4. 3 can be locked to the small-diameter portion 110a of the retaining lever 110, and the retaining grip 1 can be easily attached to the retaining insulator 110 regardless of the attachment location of the retaining grip 1, thereby improving work efficiency. Is possible.

  In the above-described configuration, the gripping unit 6 is fixed to the winding unit 4 so as not to move in the axial direction, but the gripping unit 6 can finely adjust the axial position. As described above, the linear portion 4a may be slidable with a large frictional resistance.

DESCRIPTION OF SYMBOLS 1 Retention grip 2 Grip member 3 Locking base part 4 Winding part 5 Shaft support part 6 Grasping part 10 Shaft member 50 Indirect hot wire gripping tool

Claims (4)

A locking base provided with an opening portion opened at a central angle within a predetermined angle range and curved to be locked to a locked portion disposed inside through the opening portion, and extending from the locking base. A winding portion provided with a wavy shape at the tip end side, a shaft support portion provided at a transition portion from the locking base portion to the winding portion, a base portion of the winding portion adjacent to the shaft support portion A pair of grip members having a grip portion projecting in a radial direction
A retaining grip, wherein each of the grip members is rotatably connected by engaging a shaft member with the shaft support portion such that an opening portion of each locking base portion faces the opposite side.
  Each of the gripping portions extends to the opposite side to the opening portion of the locking base, and the grip members are rotated around the shaft support portion so that the opening portions of the locking base are opposed to each other. The retaining grip according to claim 1, wherein the grips overlap each other.   The locking base portion, the winding portion, and the shaft support portion of each grip member are configured by processing one wire, and the gripping portion is configured to be sheathed by the wire. The retaining grip according to claim 1 or 2, characterized in that: An attachment method for attaching the retaining grip according to claim 2 to a locked part,
The pair of grip members are rotated around the shaft support portion so that the open portions of the locking bases face each other so as to be separated from each other to overlap each other and the overlapped gripping portions are indirectly live-line gripped. A step of gripping with a tool;
In a state where the overlapped gripping portion is gripped by the indirect live gripping tool, the pair of grip members are approached to the locked portion, and the locked portion is held between the locking base portions of the pair of grip members. A step of arranging
In a state where the locked part is disposed between the locking bases of the pair of grip members, the gripping state of the gripping part by the indirect live wire gripping tool is released, and the distal end part of each winding part is A method of attaching a retaining grip, comprising the step of rotating the shaft support portion around the shaft support portion by its own weight.

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