JP2010246308A - Drop wire support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drop wire support device enabling an overhead wire to quickly support a drop-wire while eliminating the necessity of positioning the overhead wire and the drop-wire. <P>SOLUTION: The drop wire support device for causing the overhead wire 2 to support the drop wire 3 branched and connected to the overhead wire 2 includes an overhead wire holder 7 for holding the overhead wire 2; and a drop wire holder 8 for holding the drop wire 3. The overhead wire holder 7 includes an overhead wire inserting opening 7K smaller than the diameter of the overhead wire; and right and left elastic sections 7A, 7B forming the overhead wire inserting opening 7K and sandwiching the overhead wire 2 inserted through the opening 7K and elastically holding the wire 2. The drop wire holder 8 includes a drop wire inserting opening 8K smaller than the diameter of the drop wire 3; and right and left elastic sections 8A, 8B for forming the drop wire inserting opening 8K and sandwiching the drop wire 3 inserted through the opening 8K and elastically holding the wire 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an underline support tool for supporting an underline that is branched and connected to an overhead line.

  Conventionally, the underline connector that is connected to the tip of the underline is connected to the part of the overhead line from which the insulation film has been peeled off after the underline has been applied once to the overhead line using an insulation operation rod or insulation Yatsuko. Thus, the indirect hot-line work for branching the underline to the overhead line is completed.

For example, the underline reinforcement holder of Patent Document 1 has been proposed in recent years so that the above-described one-turning operation becomes a very time-consuming operation.
By the way, by using the underline reinforcement holder, etc., the underline that is branched and connected to the overhead line is supported by the overhead line, so that the underline that is branched and connected from the overhead line is not damaged by strong winds or the like. (For example, Patent Document 1).

Japanese Patent No. 2807973 (see FIGS. 7 and 8)

The underline reinforcement holder of Patent Document 1 includes a pair of left and right jointed pieces that are configured to be opened and closed to the left and right with the lower end as a hinge part. By closing the pair of left and right handed pieces, both the overhead line and the underline are provided. It is configured to be clamped and fixed at once.
Therefore, it is difficult to close the pair of left and right palm pieces while aligning both of the overhead wire and the holding portion of the drawing line provided on the pair of right and left palm pieces. In particular, in the case of strong winds and the like, after aligning both of the holding portions of the overhead wire and the underline, their positions are displaced, for example, in the vertical direction, which is very time consuming.

  Therefore, the present invention has been made in view of the above problems, and provides a drawline support that can quickly support the drawline on the overhead line while making positioning of the overhead line and the drawline unnecessary. Let it be an issue.

  The underline support tool of the present invention is configured to solve the above-described problem, and is an underline support tool for supporting an underline that is branched and connected to the overhead line. The underline support tool holds the overhead line. A holding line and an underline holding part for holding the underline, wherein the overhead line holding part forms an overhead line insertion opening smaller than the diameter of the overhead line, the overhead line insertion opening, and is inserted through the opening. Left and right elastic portions that sandwich and elastically hold the overhead wire, and the underline holding portion forms an underline insertion opening smaller than the diameter of the underline, and the underline insertion opening. It is characterized by having left and right elastic parts that hold and elastically hold the underline inserted through the opening.

  According to the above configuration, the overhead wire is inserted into the elastic portion through the overhead wire insertion opening and held by the elastic portion, and the underline is inserted into the elastic portion through the draw wire insertion opening and held by the elastic portion. Is done.

  The underline support tool according to the present invention includes a pair of extending portions extending from the overhead wire insertion openings of the left and right elastic portions of the overhead wire holding portion to the overhead wire side and extending away from each other toward the distal end side. The pair of extending portions are brought close to each other and locked in a locking hole formed in one of the extending portions, whereby the locking portion for integrating the pair of extending portions is used as the other extending portion. In addition, a grip piece extending from the distal end portion of at least one of the extension portions of the pair of extension portions may be provided.

  If the pair of extending portions extending away from each other as described above is provided, the overhead wire can be smoothly received, the overhead wire insertion opening can be easily opened, and the overhead wire can be smoothly inserted into the elastic portion. be able to. In addition, by configuring the locking portion to be locked in the locking hole, the overhead wire can be firmly held by the elastic portion. Moreover, if it is the structure which latches a latching | locking part in a latching hole, the position which can adjust a position of an elastic part along an overhead line in the state holding the overhead wire in the elastic part before latching If the elastic portion is configured in the holding force, there is an advantage that the position of the elastic portion with respect to the overhead wire can be changed at any time before the locking portion is locked in the locking hole. Further, if a gripping piece extending from the tip of at least one of the extending portions is provided, the gripping piece is pulled with an insulating operation rod or an insulating jacket when releasing the locking portion from the locking hole. Can be easily unlocked.

  Further, the underline support tool of the present invention includes a pair of extending portions extending from the underline insertion openings of the left and right elastic portions of the underline holding portion to the overhead line side, and the free ends of the pair of extending portions The lower end of the overhead wire holding part may be connected to the part.

  If comprised as mentioned above, an underline will be inserted in the elastic part of an overhead wire through the opening for overhead wire insertion. Then, the underline is inserted into the underline elastic portion through the underline insertion opening, and is held by the underline elastic portion. Accordingly, since the underline is supported from below, for example, when the underline is inserted and held from below, it is possible to reliably prevent the occurrence of trouble that the underline falls. .

  As described above, according to the present invention, the overhead line and the underline are inserted into the elastic part by inserting the overhead line into the elastic part through the overhead line insertion opening and inserting the underline into the elastic part through the underline insertion opening. Since it can be held, not only is positioning unnecessary, but there is no need to close the pair of palm pieces, and a drawline support tool that can quickly support the drawline on the overhead line is provided. can do.

The front view which shows the state which has made the underline branched and connected to a high voltage | pressure overhead line supported by the high voltage | pressure overhead line with a drawing line support tool is shown. The underline support tool of a 1st form is shown, (a) is the side view, (b) is the front view, (c) shows the vertical side view. A state immediately before the underline is supported on the high-voltage overhead wire by the underline support tool is shown, (a) is a side view thereof, and (b) is a front view thereof. A state in which the underline is supported on the high-voltage overhead line by the underline support tool is shown, (a) is a side view thereof, and (b) is a front view thereof. The side view of the underline support tool of the 2nd form is shown, (a) shows the state just before supporting the underline with the high voltage overhead line by the underline support tool, and (b) shows the underline under the high voltage overhead line. The state supported by the support tool is shown. (A) shows the side view of the underline support tool of a 3rd form, (b) shows the side view of the underline support tool of a 4th form. The underline support tool of a 5th form is shown, (a) is the side view, (b) shows the front view.

  Hereinafter, the underline support tool according to the present invention will be described with reference to the drawings.

In FIG. 1, a high-voltage underline 3 that is connected to a power pole 1, a high-voltage underline 3 that is branched and connected to the high-voltage overhead line 2, and a high-voltage underline 3 that is connected to the high-voltage underline 3 are primary. A transformer (transformer) 4 connected to the side is shown. Here, although the high voltage overhead wire 2 is demonstrated, this invention is applicable also to a low voltage overhead wire. In the case of a low-voltage overhead wire, a low-voltage underline is used.
Also, when the transformer 4 is suspended and when the cut-out (PC / CF) C1, C2, and C3 are replaced, the high-voltage underline 3 is removed from the high-voltage overhead line 2, and the high-voltage underline 3 is high-voltage after the work is completed. It is attached to the overhead line 2 for power transmission. Specifically, the connector 5 is attached to the tip of the high-voltage underline 3 and connects the high-voltage underline 3 to the high-voltage overhead line 2. The high-voltage underline 3 is positioned on the transformer 4 side of the connector 5. After removing the underline support 6 for supporting the high-voltage overhead wire 2, the transformer 4 is suspended or the cut-out (PC / CF) C1, C2, C3 is replaced, and the work is completed. Later, the removed connector 5 and the underline support 6 are attached.

  The underline support tool is formed by molding synthetic rubber or synthetic resin having insulating properties, and as shown in FIGS. 2 (a), 2 (b), and 2 (c), a high-voltage overhead wire 2 having a circular cross section is formed. The overhead wire holding part 7 to hold | maintain and the underline holding part 8 which hold | maintains the high voltage underline 3 with a circular cross-sectional shape are provided up and down.

  The overhead wire holding part 7 forms an overhead wire insertion opening 7K smaller than the diameter of the high-voltage overhead wire 2 and the overhead wire insertion opening 7K, and sandwiches and holds the high-voltage overhead wire 2 inserted through the opening 7K and holds it elastically. Left and right arc-shaped elastic portions 7A and 7B are provided.

  The underline holding part 8 forms an underline insertion opening 8K smaller than the diameter of the high pressure underline 3 and the underline insertion opening 8K, and the high pressure underline 3 inserted through the opening 8K. Left and right arc-shaped elastic portions 8A and 8B that are sandwiched and elastically held are provided.

  Furthermore, a pair of extending portions 9A and 9B are provided that extend from the overhead wire insertion openings 7K of the left and right elastic portions 7A and 7B of the overhead wire holding portion 7 to the high-voltage overhead wire side and extend away from each other toward the distal end side. The pair of extending portions 9A, 9B are brought close to each other and locked in a locking hole 9b formed in one of the extending portions 9B, thereby locking the pair of extending portions 9A, 9B together. A portion 10 is provided on the inner surface of the other extending portion 9A, and gripping pieces 11A and 11B are provided extending from the distal ends of the pair of extending portions 9A and 9B toward the elastic portion, that is, obliquely downward. The locking portion 10 is integrated with the inner surface of the left extending portion 9A, a rod-shaped main body portion 10b extending to the right extending portion 9B, and the front end of the main body portion 10b, and more than the locking hole 9b. It consists of a spherical locking projection 10a having a slightly larger diameter, and this locking projection 10a is inserted into the locking hole 9b and protrudes to the outer surface of the right extension 9B as shown in FIG. 2 (c). By doing so, the high-voltage overhead wire 2 is firmly sandwiched and the sandwiched state can be maintained. Accordingly, until the locking projection 10a is inserted into the locking hole 9b, the elastic portions 7A and 7B are clamped to the extent that the high voltage overhead wire 2 can be held. Thus, the overhead wire holding portion 7 can be easily moved, and the position of the overhead wire holding portion 7 can be easily adjusted with respect to the overhead wire holding portion 7.

  The left and right elastic portions 8A and 8B of the underline holding portion 8 include a pair of extension portions 12A and 12B extending from the underline insertion opening 8K to the overhead line side, and the pair of extension portions 12A and 12B. The lower ends of the elastic portions 7A and 7B of the overhead wire holding portion 7 are connected to the free end portion. The extending portions 12A and 12B are formed in a straight line along the vertical direction. However, if the distance between the two is increased toward the upper end side, there is an advantage that the high-voltage underline 3 can be easily inserted. . Further, the extending portions 12A and 12B can be formed in a curved shape.

  Furthermore, a gripping plate portion 13 is provided at the lower ends of the left and right elastic portions 8A and 8B of the underline holding portion 8 so as to hang downward and be gripped by an insulating operation rod or an insulating jacket. Further, as shown in FIG. 1, an excess high-voltage underline 3 can be wound around the grip plate portion 13. A horizontal plate portion 13 </ b> A is provided at the lower end of the gripping plate portion 13 to prevent the wound high-voltage underline 3 from moving downward and coming off the gripping plate portion 13.

The removal operation and attachment operation of the underline support tool 6 configured as described above will be described with reference to FIGS. 3 (a) and 3 (b) and FIGS. 4 (a) and 4 (b). Various existing connectors 5 are used, and the description of the attachment and removal of the connector 5 is omitted.
First, the high-voltage underline 3 to which the connector 5 is connected on the tip side is held by the underline holding part 8 of the underline support 6. From this state, as shown in FIGS. 3 (a) and 3 (b), the pulling wire support 6 is gripped using the insulating Y-cots Y, and is positioned directly below the high-voltage overhead wire 2. Subsequently, the high voltage overhead wire 2 side is moved, the underline support 6 is held in the overhead wire holding part 7, the connector 5 is moved to the high voltage overhead wire 2 side, and the coating is peeled off. It is confirmed whether it can be connected to the electric wire 14 exposed from the overhead wire 2. If the position of the connector 5 is poor, the position adjustment is performed by moving the underline support 6 on the extended line. Thereafter, as shown in FIG. 4 (b), the pair of extending portions 9A and 9B are sandwiched by the insulating Y-cots Y as indicated by broken lines, and the locking projections 10a are inserted into the locking holes 9b to support the underline. Installation of the tool 6 is completed. Subsequently, the connector 5 is moved to the high-voltage overhead wire 2 side, and the connector 5 is connected to the electric wire 14 exposed from the high-voltage overhead wire 2 from which the coating has been peeled off. It should be noted that the connector 5 and the underline support 6 are attached by two workers, either of which may be attached first or at the same time, but after the connector 5 is attached, After adjusting the position of the underline support 6 with respect to 2, the underline support 6 can be attached.

  Next, when removing the attached underline support 6, as shown in FIGS. 4A and 4B, the right gripping piece 11 </ b> B is gripped by the insulating Y-cots Y and then pulled downward. Thus, the locking projection 10a is released from the locking hole 9b. From the unlocked state, as shown by the solid line, the pulling wire support 6 can be removed from the high-voltage overhead wire 2 by gripping the gripping plate portion 13 with the insulating Yacht Y and pulling it downward. Note that the connector 5 is removed using an insulating jacket Y.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

  For example, in the above embodiment, the locking hole 9b and the locking protrusion 10a locked to the locking hole 9b are provided. However, as shown in FIGS. 5 (a) and 5 (b), the locking hole 9b The structure which abbreviate | omitted the latching protrusion 10a latched to this may be sufficient. This configuration has the following disadvantages although it is excellent in workability. That is, it is necessary to strengthen the holding force of the elastic portions 7A and 7B with respect to the high-voltage overhead wire 2 so that the elastic portions 7A and 7B holding the high-voltage overhead wire 2 are not easily detached from the high-voltage overhead wire 2. 5A and 5B, when the elastic portions 7A and 7B are sandwiched between the high-voltage overhead wires 2, the elastic portions 7A and 7B are placed in the longitudinal direction of the high-voltage overhead wire 2 with respect to the high-voltage overhead wire 2. There is an inconvenience that it is difficult to move it easily. The other parts that have not been described have the same configuration as that of FIG. 2, and therefore the description thereof will be omitted and the same reference numerals will be given.

  In the above embodiment, the underline insertion opening 8K is formed at the lower end of the overhead wire holding portion 7 so as to open upward. However, as shown in FIG. 6A, the underline insertion opening 8K faces downward. The underline insertion opening 8K may be formed as a downward opening so as to be formed as follows. An extension portion 8C extending in the horizontal direction is provided at the lower end of the left elastic portion 8A, and when the high pressure underline 3 is inserted into the underline insertion opening 8K, the extension portion 8C causes the high pressure underline 3 to be inserted. The underline insertion opening 8K can be easily expanded by being received. Further, as shown in FIG. 6B, the underline insertion opening 8K may be formed as a lateral opening so that the underline insertion opening 8K is formed on the left side (lateral side). An extension portion 8C extending horizontally is provided at the left end of the left elastic portion 8A, and when the high pressure underline 3 is inserted into the underline insertion opening 8K, the extension portion 8C receives the high pressure underline 3. Thus, the underline insertion opening 8K can be easily expanded. 6A and 6B, the left and right elastic portions 7A and 7B are connected at the lower end. The other parts that have not been described have the same configuration as that of FIG. 2, and therefore the description thereof will be omitted and the same reference numerals will be given.

  In the above embodiment, the gripping pieces 11A and 11B are configured to extend from the upper ends of the extending portions 9A and 9B. However, as shown in FIGS. Can also be implemented. Further, the gripping pieces 11A and 11B are arranged close to one end side in the width direction of the extending portions 9A and 9B, so that the extending portions 9A and 9B are sandwiched by the insulating Y-cots Y and the locking projections 10a are locked into the locking holes 9b. It is preferable that the gripping pieces 11A and 11B do not obstruct the sandwiching of the insulating Y-cots Y when they are inserted, but they may be arranged at the center position in the width direction of the extending portions 9A and 9B. 9A and 9B may be provided across the entire width direction. Furthermore, in particular, in the configuration in which the locking hole 9b and the locking protrusion 10a locked to the locking hole 9b shown in FIG. 5 are omitted, the gripping pieces 11A and 11B may be omitted. The other parts that have not been described have the same configuration as that of FIG. 2, and therefore the description thereof will be omitted and the same reference numerals will be given.

  DESCRIPTION OF SYMBOLS 1 ... Telephone pole, 2 ... High voltage overhead wire, 3 ... High voltage underline, 4 ... Transformer, 5 ... Connector, 6 ... Underline support tool, 7 ... Overhead wire holding part, 7A, 7B ... Elastic part, 7K ... Opening for insertion of overhead wire , 7K ... Opening for insertion of overhead wire, 8 ... Underline holding part, 8A, 8B ... Elastic part, 8C ... Extension part, 8K ... Opening for underline insertion, 9A, 9B ... Extension part, 9b ... Locking hole, DESCRIPTION OF SYMBOLS 10 ... Locking part, 10a ... Locking protrusion, 10b ... Main body part, 11A, 11B ... Holding piece, 12A, 12B ... Extension part, 13 ... Holding plate part, 13A ... Horizontal plate part, 14 ... Electric wire, Y ... Insulated Yatco

Claims (3)

An underline support for supporting an underline that is branched and connected to the overhead line by the overhead line,
An overhead wire holding part for holding the overhead line; and a drawn line holding part for holding the underline,
The overhead wire holding portion includes an overhead wire insertion opening smaller than the diameter of the overhead wire, and left and right elastic portions that sandwich the overhead wire inserted through the opening and elastically hold the overhead wire inserted through the opening.
The underline holding part is formed with an underline insertion opening smaller than the diameter of the underline, and the underline insertion opening, and the left and right elastic members sandwiching the underline inserted through the opening and elastically holding the underline. The underline support tool characterized by comprising a portion.   A pair of extending portions extending from the overhead wire insertion openings of the left and right elastic portions of the overhead wire holding portion to the overhead wire side and extending away from each other toward the distal end side, the pair of extending portions being brought close to each other The other extension portion includes a locking portion for integrating the pair of extension portions by locking in a locking hole formed in the one extension portion, and the distal ends of the pair of extension portions The underline support tool according to claim 1, further comprising a grip piece extending from a distal end portion of at least one of the extending portions.   A pair of extending portions extending from the underline insertion openings of the left and right elastic portions of the underline holding portion to the overhead wire side are provided, and the lower ends of the overhead wire holding portions are connected to the free ends of the pair of extension portions. The underline support tool according to claim 1 or 2, wherein the underline support tool is provided.

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