JP2016034199A - Strain insulator support device, strain insulator and connection method to power line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a strain insulator support device capable of supporting a strain insulator which extends out of a steel crossarm and capable of being easily removed from the strain insulator.SOLUTION: The strain insulator support device supports a strain insulator which is attached to a steel crossarm extending out of a utility pole in a direction crossing the axial line of the utility pole when connecting to the power line. The strain insulator support device includes: a placement part for placing the strain insulator; a fixing part which is fixed to the steel crossarm; and a connection part for connecting the placement part and the fixing part. The placement part is arranged so as to change, in a state that the fixing part is fixed to the steel crossarm, between an available state in which the strain insulator may be placed in a crossing direction with respect to the axial line of the utility pole and an extending direction of the steel crossarm and a separated state in which the placement part is separated downward from the strain insulator which is connected to the steel crossarm and power line.SELECTED DRAWING: Figure 1

Description

  The present invention provides a tension insulator support that supports a tension insulator when the wire is coupled to a tension insulator that is coupled to a brace, and a tension insulator and an electric wire using the tension insulator support. Concerning the connection method.

  When an electric wire is fastened to a brace attached to the electric pole so as to extend from the electric pole, the electric wire is connected to a tension insulator connected to the brace. Such a tension insulator includes, for example, an insulator body having insulation properties, and an insulator connecting portion attached to the insulator body so as to extend from the insulator body and connected to other tension insulators and electric wires. Things are known. Such tension insulators may be used singly or a plurality of tension insulators may be used as a tension insulator series.

  Such a tension insulator is connected to the electric wire in a state of extending from the arm metal in a direction intersecting the axial direction of the utility pole and the extending direction of the arm metal. Examples of a method for connecting an electric wire to a tension insulator connected to a brace include the following methods. First, using an attracting tool such as a shimmer, the electric wire is temporarily fixed in the vicinity of the tension insulator connected to the arm metal. And, while holding the tension insulator in a state extending from the arm metal in a direction intersecting with the axial direction of the utility pole and the direction in which the arm metal extends, the connection position with the tension insulator in the electric wire (specifically, The connection position with the clamping clamp is confirmed, and the core wire is exposed by removing the covering of the connection position. Thereafter, the tension insulator and the exposed core wire are connected again while holding the tension insulator in a state of extending from the arm metal. Thereby, it will be in the state where the tension insulator and electric wire connected with the armrest were connected (refer to patent documents 1).

  As described above, when connecting the electric wire to the tension insulator connected to the armature, until the tension insulator is connected to the electric wire, in the axial direction of the utility pole and the extension direction of the armature. On the other hand, it is preferable that the tension insulator is held in a state of extending from the brace in a direction intersecting with the armature. Examples of a method for holding the tension insulator in such an extended state include a method in which an operator supports the tension insulator by hand and a method using a jig for holding the tension insulator in the extended state. As such a jig, for example, a fixing portion that is fixed to the arm metal and a holding portion that holds the tension insulator from above are provided, and the tension insulator is attached to the holding portion using a bolt. The comprised jig | tool can be used (refer patent document 2). Such a jig is configured such that the tension insulator held by the holding portion is extended by fixing the fixing portion to the arm metal.

JP 2012-253870 A Japanese Patent Laid-Open No. 08-098377

  However, as described above, in the method in which the tension insulator is supported by the hand by the operator, the weight of the tension insulator is added to the hands and arms, so that the burden on the operator is heavy and the tension insulator is held in the extended state. It will be difficult to continue. In addition, since at least one hand is used to support the tension insulator, the workability of the work of removing the coating of the electric wire and the operation of connecting the electric wire and the tensile insulator is reduced. On the other hand, in the method using the jig as described above, since the jig and the tension insulator are connected using a bolt, the jig is removed from the tension insulator after the electric wire and the tension insulator are connected. Work becomes complicated. In addition, after the connection between the electric wire and the tension insulator, the weight of the tension insulator and the electric wire is added to the bolt of the jig, making it difficult to remove the bolt, making it easy to remove the tension insulator from the jig. I can't do it.

  Accordingly, the present invention provides a tension insulator support that can support the tension insulator in an extended state and can be easily detached from the tension insulator, and also provides the tension insulator support. It is an object of the present invention to provide a method for connecting a tension insulator and an electric wire using a wire.

The tension insulator support according to the present invention is:
A tension insulator support that supports the tension insulator when connecting the tension insulator attached to the armature extending from the utility pole and the electric wire in a direction intersecting the axis of the utility pole,
A mounting portion for mounting the tension insulator, a fixing portion fixed to the armrest, and a connecting portion for connecting the mounting portion and the fixing portion;
In the state in which the fixing portion is fixed to the armrest, the mounting portion is disposed along a direction intersecting the axis of the utility pole and the extending direction of the armrest, and the mounting portion on which the tension insulator can be placed. It is configured to be able to change the state between a placeable state and a separated state separated downward from a tension insulator connected to the armrest and the electric wire.

  According to such a configuration, the tension insulator is placed on the placement portion in the mountable state so that the tension insulator is placed in the direction intersecting the axial direction of the utility pole and the extending direction of the arm metal. The tension insulator is supported in a state extended from (hereinafter also referred to as an extended state). Thereby, an operator's burden can be reduced rather than the case where an operator supports a tension insulator with a hand. Further, after the tension insulator placed on the placement portion is connected to the electric wire, the placement portion is separated from the tension insulator by changing the state of the placement portion to the separation state. Thereby, since the weight of a tension insulator and an electric wire is not added to a mounting part, the removal of a tension insulator support tool from a brace can be performed easily.

  It is preferable to include a state fixing unit configured to be able to fix the mounting unit in a mountable state and configured to be able to release the fixing.

  According to such a configuration, by providing the state fixing means, the mounting unit is securely fixed to the mountable state, and the mounting unit is released from the fixed state by releasing the fixing of the mounting unit. It becomes possible. As a result, the tension insulator placed on the placement portion can be securely held in the extended state until the connection work between the tension insulator and the electric wire is completed, and the placement portion is provided as necessary. The mounting portion can be separated from the tension insulator by changing the state to the separated state.

  It is preferable that the mounting portion is configured to be able to change state by being connected to the connecting portion so as to be rotatable about an axis along a direction intersecting the axis of the utility pole.

  According to such a configuration, the mounting unit is connected to the connecting unit so as to be rotatable about an axis along a direction intersecting the axis of the utility pole, so that the mounting unit is separated. When the state is changed, the placement unit is retracted from at least a part of the lower region of the extended tension insulator. Thereby, even in a state where the tension insulator support is fixed to the armature, a space where no placement portion is present is formed below the extended tension insulator, so in the lower region of the tension insulator Can be easily performed.

  It is preferable that the mounting portion is configured to be movable along the extending direction of the arm relative to the fixed portion in a state where the tension insulator can be mounted.

  According to such a configuration, the mounting portion is configured to be movable along the extending direction of the arm metal relative to the fixed portion in a state where the tension insulator can be mounted. When the placement portion is moved in the direction, a space is formed at the position where the placement portion and the tension insulator were arranged before the movement. Thereby, the operation | work limited by a mounting part and a tension insulator being located in such a space can be easily performed, without receiving the influence of a tension insulator and a mounting part.

The method of connecting the tension insulator and the electric wire according to the present invention is as follows.
A method of connecting a tension insulator and a wire to connect the tension insulator and the wire using the tension insulator support described above,
In a state where the fixed portion of the tension insulator support is fixed to the armrest, a placement step of placing the tension insulator coupled to the armrest on the placement portion, and a resistance resistance placed on the placement portion. A connecting step of connecting the tension insulator and the electric wire, a changing step of changing the placement portion from the mountable state to the separated state in a state where the tension insulator and the electric wire are connected, and the placement portion in the separated state It is characterized by comprising a removal step of removing the tension insulator support from the arm metal in the state changed.

  According to such a configuration, the tension insulator is held in the extended state by the placement portion of the tension insulator support by providing the placement step. Thereby, since a connection process can be performed without an operator holding the tension insulator in the extended state by hand, the burden on the operator can be reduced. Then, after the tension insulator placed on the placement portion is connected to the electric wire, the placement portion is separated from the tension insulator by changing the placement portion to a separated state in the changing process. . Thereby, since the weight of a tension insulator and an electric wire is not added to a mounting part, the removal of a tension insulator support tool from a brace can be easily performed in a removal process.

  As described above, according to the present invention, the tension insulator can be supported in a state of extending from the armature, and can be easily detached from the tension insulator.

(A) is a plan view of a tension insulator support according to this embodiment (viewed from above), and (b) is a side view of the tension insulator support according to this embodiment (as viewed from the horizontal direction). Figure). (A) is XX sectional drawing of Fig.1 (a), (b) is the top view which showed the vicinity of the connection part of the tension | pulling tension insulator support which concerns on the embodiment. The perspective view which showed the fixing | fixed part of the tension insulator support which concerns on the embodiment, and a partially expanded view. The top view which showed the tension insulator series of the state connected with the tension insulator support tool and armrest which concern on the same embodiment. (A) is the side view which showed the state at the time of fixing the tension | pulling tension insulator support tool which concerns on the embodiment to a bracelet, (b) is YY sectional drawing of (a). (A) is a top view which shows the state by which the tension insulator support tool which concerns on the embodiment was fixed to the armrest, (b) was the tension insulator support tool which concerns on the embodiment fixed to the armrest The top view which shows the state which the mounting part moved along the extending direction of a brace in the state. (A) is a top view which shows the state by which the electric wire E was connected with the tension insulator mounted in the mounting part of the tension insulator support tool which concerns on the embodiment, (b) mounts a mounting part. The side view which shows the state which changed the state from the installation possible state to the separation | spacing state. (A) is a side view at the time of removing the tension insulator support according to the embodiment from the armrest, (b) shows a state in which the tension insulator support according to the embodiment is removed from the armrest. Side view. The top view which shows the state by which the tension insulator was mounted in the tension insulator support tool which concerns on other embodiment. (A) is a side view which shows the state by which the mounting part of the tension insulator support which concerns on other embodiment was fixed to the state which can be mounted, (b) is the tension insulator support which concerns on the embodiment The side view which shows the state which the mounting part of the tool changed into the separated state. (A) is a side view which shows the fixing | fixed part of the tension insulator support which concerns on further another embodiment, (b) is a side view which shows the fixing | fixed part of the tension insulator support which concerns on other embodiment.

  Below, embodiment of the tension insulator support tool which concerns on this invention is described based on FIGS.

  The tension insulator support 1 according to this embodiment is used when connecting a tension insulator attached to a brace extending from a utility pole in a direction intersecting the axis of the utility pole and an electric wire. Specifically, as shown in FIG. 1, the tension insulator support 1 includes a placement portion 2 on which the tension insulator is placed, a fixing portion 3 that is fixed to the arm metal, and the placement portion. 2 and a connecting part 4 that connects the fixing part 3.

  The placement unit 2 includes a placement region 2 a for placing a tension insulator and a connection region 2 b connected to the connection unit 4. Specifically, the placement unit 2 includes a connection region 2b at one end in one direction and a placement region 2a at the other end in one direction. Moreover, the mounting part 2 is formed so that it may become long along one direction. In the following description, the one direction is defined as a first direction, the direction intersecting the first direction is defined as a second direction, and the direction intersecting the first direction and the second direction is defined as a third direction. Further, the side on which the tension insulator in the tension insulator support 1 is placed is “upper”, and the opposite side is “lower”.

  The placement region 2a is formed so that the first direction is the longitudinal direction. The placement area 2a includes a placement portion main body 2c for placing the tension insulator and a placement portion wall 2d extending from the placement portion main body 2c along the third direction (upward). .

  As shown in FIG. 2A, the mounting portion main body 2c includes a mounting surface 2e on which the tension insulator is mounted. Specifically, the placing portion main body 2c has a plate-like shape (more specifically, a rectangular plate shape whose first direction is the longitudinal direction), is disposed along the second direction, and one surface thereof is It is comprised so that it may become the mounting surface 2e. The mounting surface 2e includes a concave surface 2f formed in a concave shape so that a part thereof is along the outer periphery of the tensile insulator, and the tensile insulator can be mounted on the concave surface 2f. As a result, the placement region 2a (specifically, the placement surface 2e) can place the tension insulator in a stable state, and the placement portion 2 along the second direction as described later. Since the tension insulator engages with the concave surface 2f when moving, the tension insulator can be moved along with the mounting portion 2 in the second direction.

  Returning to FIG. 1, the placement portion wall 2d is formed to extend from the placement portion main body 2c on the placement surface 2e side. The placement portion wall 2d is formed at the end of the placement portion main body 2c. Specifically, the placement portion wall 2d is formed at one end portion of both end portions located in the second direction of the placement portion main body 2c. The height of the placement portion wall 2d is not particularly limited, but the tension insulator placed on the placement portion main body 2c is positioned below the upper end portion of the placement portion wall 2d. It is preferable to set the height. Further, the placement portion wall 2d is formed (continuously) over the entire region between the one end portion and the other end portion of the placement portion main body 2c in the first direction.

  The placing portion 2 is configured to be able to change a state between a placeable state in which the tension insulator can be placed and a separated state separated downward from the tension insulator coupled to the electric wire. Specifically, as shown in FIG. 2B, the connection region 2b includes a rod-shaped portion 2g extending along the second direction, and the rod-shaped portion 2g is rotatably connected to the connection portion 4. The rod-like portion 2g is connected to the connecting portion 4 in a state of penetrating the connecting portion 4 along the second direction so as to be rotatable about the axis. Thereby, the mounting portion 2 (specifically, the mounting region 2a) is centered on the axis along the second direction (specifically, the rod-shaped portion at the connection position between the connection region 2b and the connection portion 4). It is configured to be rotatable along the third direction (up and down) about 2g, and the state can be changed between the mountable state and the separated state.

  In addition, the connection region 2b constitutes a state fixing means 5 that fixes the mounting portion 2 so that the state does not change (does not rotate) together with the state fixing member 4b (the state fixing member 4b will be described later) provided in the connecting portion 4. To do. Specifically, the connecting region 2b includes an insertion hole 2h configured to be able to insert the tip of the state fixing member 4b formed in a rod shape, and the state fixing means 5 includes the insertion hole 2h and the state fixing member 4b. Is configured. Such an insertion hole 2h is formed along the second direction between the rod-like portion 2g and the placement portion main body 2c.

  As for the connection part 4, the fixing | fixed part 3 is connected with the one end side of a 1st direction. Specifically, the connection part 4 is connected to the fixed part 3 at one end in the first direction so as to be rotatable about an axis along the third direction. Moreover, as for the connection part 4, the mounting part 2 is connected with the other end side of a 1st direction. Specifically, the connecting portion 4 includes an insertion hole 4a into which the rod-shaped portion 2g of the mounting portion 2 is inserted on the other end side in the first direction, and the rod-shaped portion 2g is inserted into the insertion hole 4a. It is connected to the placement unit 2. Such an insertion hole 4a is formed along the second direction, and is configured such that the inserted rod-like portion 2g is rotatable about the axis.

  Further, the connecting part 4 includes a state fixing member 4 b that constitutes the state fixing means 5 together with the connection region 2 b of the mounting part 2. The state fixing member 4b has a rod-like shape, includes a knob portion 4c that can be pinched with a finger or the like at one end portion, and the other end portion (tip portion) can be inserted into the insertion hole 2h of the mounting portion 2. Composed. Further, the state fixing member 4b includes a protruding portion 4d protruding in a direction intersecting the longitudinal direction at a position separated from the tip portion.

  Moreover, the connection part 4 is provided with the insertion hole 4e which inserts the state fixing member 4b. The insertion hole 4e is formed along the second direction, and is configured such that a region on one end side in the axial direction has a larger cross-sectional shape perpendicular to the axial direction than a region on the other end side. Thus, the insertion hole 4e has a narrower internal space in the region on the other end side than the region on the one end side in the axial direction, and a step portion between the region on the one end side in the axial direction and the region on the other end side. 4f is formed.

  When the state fixing member 4b is inserted into the insertion hole 4e, the protruding portion 4d of the state fixing member 4b is located in a region on one end side of the insertion hole 4e (in a region having a large internal space). As a result, by sliding the state fixing member 4b from one end side to the other end side along the axial direction of the insertion hole 4e, the protruding portion 4d abuts on the stepped portion 4f (that is, the protruding portion 4d and the stepped portion 4f Engage in the second direction). For this reason, it is prevented that the state fixing member 4b slips out from the insertion hole 4e to the other end side of the insertion hole 4e. Further, in a state in which the protruding portion 4d is in contact (engaged) with the stepped portion 4f, the state fixing member 4b has a distal end located outside the insertion hole 2h of the connection region 2b (hereinafter also referred to as a released state). It becomes. Further, the state fixing member 4b in the released state is slid to one end side of the insertion hole 4e so that the tip of the state fixing member 4b is inserted into the insertion hole 2h in the connection region 2b (hereinafter also referred to as a fixed state). It becomes.

  As shown in FIG. 3, the fixing portion 3 includes a fixing region 3 a that is fixed to the arm and a connecting region 3 b that is connected to the connecting portion 4. Specifically, the fixing portion 3 includes a fixed region 3a on one end side in the first direction, and a connecting region 3b on the other end side in the first direction. The fixed portion 3 includes an upper member 3c that comes into contact with the arm metal from above and a lower member 3d that comes into contact with the arm metal from below.

  The upper member 3c is arranged so as to extend from the lower member 3d along the third direction (specifically, to rise from the lower member 3d), and in the first direction An upper second portion 3f extending from one end portion (upper end portion) in the extending direction of the upper first portion 3e toward the one end side, and an end portion (tip end) positioned in the extending direction of the upper second portion 3f. Part) is provided with an upper arm part 3h composed of an upper third part 3g extending downward. In the present embodiment, the upper member 3c includes a pair of upper arm portions 3h. The pair of upper arm portions 3h, 3h are disposed with an interval in the second direction.

  Further, the upper member 3c (specifically, each upper arm portion 3h) is connected to the lower member 3d. Specifically, in each upper arm portion 3h, the lower end portion of each upper first portion 3e is connected to the lower member 3d. Thereby, each upper second portion 3f is separated upward from the lower member 3d. The upper member 3c is configured to be rotatable about an axis along the second direction at a connection position with the lower member 3d. Specifically, the lower end portion of each upper first portion 3e is connected to the lower member 3d so as to be rotatable about an axis along the second direction. As a result, the upper member 3c can rotate along the third direction (vertically) about the axis along the second direction at the connection position with the lower member 3d.

  Each upper third portion 3g is configured to be rotatable about an axis along the second direction at a connection position with each upper second portion 3f. Specifically, each upper third portion 3g is connected to the tip end portion of each upper second portion 3f so that one end portion of each upper third portion 3g is rotatable about an axis along the second direction. The third portion 3g is configured to be rotatable along the third direction (vertically) about the axis line along the second direction at the connection position with each upper second portion 3f.

  The lower member 3d includes a connecting region 3b connected to the connecting portion 4, a lower first portion 3i extending from the connecting region 3b toward one end in the first direction, and the lower first portion 3i. The lower arm portion 3k is configured to include a lower second portion 3j extending upward from an end portion (tip portion) in the extending direction. In the present embodiment, the lower member 3d includes a pair of lower arm portions 3k, and the pair of lower arm portions 3k, 3k are disposed with a gap in the second direction. Each lower first portion 3i is in a state of being spaced downward from the upper second portion 3f.

  The pair of upper arm portions 3h and the pair of lower arm portions 3k form a fixed region 3a, and a brace can be arranged between each upper arm portion 3h and each lower arm portion 3k. . Specifically, the upper member 3c is pivotable as described above at the connection position with the lower member 3d, so that the tip of each upper arm 3h (the lower end of the upper third portion 3g) and each The space between the tip of the lower arm 3k (the upper end of the lower second portion 3j) can be opened and closed. For this reason, by making such an interval open to the extent that the arm can be passed (hereinafter also referred to as an open state), between the upper member 3c and the lower member 3d (specifically, a pair of upper members) It is possible to dispose the brace between the arm portions 3h, 3h and the pair of lower arm portions 3k, 3k). In the following description, between the tip of each upper arm 3h (the lower end of the upper third portion 3g) and the tip of each lower arm 3k (the upper end of the lower second portion 3j). A state in which the interval is closed is also referred to as a closed state.

  Further, the fixing region 3a has an arm metal between the upper member 3c and the lower member 3d (specifically, between the pair of upper arm portions 3h and 3h and the pair of lower arm portions 3k and 3k). In the arranged state, the fixing region 3a is prevented from being unintentionally changed from the closed state to the open state, and the state in which the arm metal is tightened by the upper arm portions 3h and the lower arm portions 3k is maintained. Tightening means 3m is provided.

  Such tightening means 3m is provided from the tip of each upper arm 3h (the lower end of the upper third portion 3g) and the tip of each lower arm 3k (the upper end of the lower second portion 3j). It is comprised from a pair of protrusion part 3n, 3p formed so that it might protrude. One protruding portion 3n includes a screw member 3q, and is configured such that the screw member 3q rotates in the vertical direction around one end of the screw member 3q. The other protrusion 3p includes a groove 3r into which the other end of the screw member 3q is fitted.

  Then, the upper region 3h is closed by closing the fixing region 3a and fitting the other end of the screw member 3q of one protrusion 3n into the groove 3r of the other protrusion 3p and tightening the screw member 3q. Are held in a state in which the distance between the distal end portion (the lower end portion of the upper third portion 3g) and the distal end portion of each lower arm portion 3k (the upper end portion of the lower second portion 3j) does not widen, The state in which the arm metal is fastened by the upper arm portion 3h and the lower arm portions 3k is maintained.

  Next, a method for connecting the tension insulator and the electric wire using the tension insulator support 1 configured as described above will be described. First of all, as shown in FIG. The arm metal A is disposed so as to extend from the utility pole in a direction intersecting with the axis of the utility pole (not shown). In the following description, the first direction is a direction intersecting the axis of the utility pole and the extending direction of the arm metal A, and the second direction is a direction along the extending direction of the arm metal A. The third direction is a direction along the axis of the utility pole.

  In the present embodiment, a plurality of tension insulators B are connected in a straight line to form a tension insulator series, and the tension insulator series is connected to the arm metal A. The tension insulator B includes a ceramic insulator body B1 and an insulator connecting portion B2 attached to the insulator body B1 so as to extend from the insulator body B1 and connected to other members. The insulator main body B1 includes a main body attachment portion B3 to which another member is attached at one end portion in one direction, and the insulator connecting portion B2 extends from the other end portion in one direction. In this embodiment, an insulator connecting portion B2 of another tension insulator B is attached to the body attachment portion B3 of one tension insulator B to form a tension insulator series.

  When connecting the tension insulators as described above to the arm A, a tension clamp (which connects the insulator connector B2 and the electric wire) D is attached to the insulator connector B2 of one tension insulator B. The torsion strap C is attached to the body attachment portion B3 of the other tension insulator B. Then, the torsion strap C is connected to the arm metal A so that the tension insulator B (the tension insulator chain) is connected to the arm metal A. The tension insulator support 1 is attached to the arm metal A in a state where the tension insulator B is connected to the arm metal A. At this time, by placing the state fixing member 4b in a fixed state, the mounting portion 2 (specifically, the mounting region 2a) is in a state in which the state does not change (does not rotate).

<Installation process>
And as shown to Fig.5 (a), the fixed area | region 3a is made into an open state, and between the upper side member 3c and the lower side member 3d (specifically, a pair of upper side arm parts 3h and 3h, and a pair of lower side) After the arm metal A is disposed between the arm portions 3k and 3k), the fixing region 3a is closed, and the screw member 3q provided at the tip of each upper arm portion 3h is attached to each lower arm portion 3k. The tension-resistant insulator support 1 is fixed to the arm metal A by engaging and tightening with a groove 3r (see FIG. 3) provided at the tip of the arm.

  As described above, the tension insulator support 1 is fixed to the arm A, so that the placement portion 2 is arranged along the first direction and the tension insulator B (stretch insulator series) is placed thereon. A possible placement is possible. Then, the mounting portion 2 is in a state where the tension insulator B is mounted on the mounting region 2a in a mountable state (more specifically, as shown in FIG. 5 (b), partially on the concave surface 2f. State). In the state where the tension insulator support 1 is fixed to the arm metal A, the tension insulator support 1 extends from the arm metal A along the first direction as shown in FIG. It becomes a state. That is, the placement area 2a and the fixed area 3a are positioned on a straight line.

<Connection process>
Next, as shown in FIG. 6 (b), the covering of the electric wire E temporarily fixed using a drawing tool (not shown) such as a shimmer in the vicinity of the tension insulator B is partially removed. Specifically, the tension insulator B (specifically, the tension clamp) in the electric wire E is drawn near the tension insulator B (more specifically, the tension clamp D) placed on the placement area 2a. Check the connection position with D). Thereafter, the placement region 2a is moved along the second direction from the state where the placement region 2a and the fixed region 3a are arranged on a straight line, whereby the tension insulator B, the placement region 2a, and the electric wire E Increase the spacing. Specifically, the mounting portion 2 is moved relative to the fixed region 3a in the second direction around the axis along the third direction (vertical direction) at the connecting position between the connecting portion 4 and the fixing portion 3. Let Thereby, the space | interval of the tension insulator B and the mounting area | region 2a, and the electric wire E is expanded, and a working space is ensured. And the coating | cover of the connection position with the tension insulator B (specifically clamping clamp D) in the electric wire E is removed, and the core wire E1 is exposed. Thereafter, as shown in FIG. 7A, the tension insulator B and the placement region 2a are returned to the positions before the movement, and the retaining clamp D and the core E1 of the electric wire E are connected. Thereby, the tensile insulator B (tensile insulator series) and the electric wire E are connected.

<Change process>
By placing the state fixing member 4b in the released state in the state where the tension insulator B (tensile insulator series) and the electric wire E are connected as described above, the placement portion 2 is fixed in a placeable state. The released state is released. As a result, the mounting portion 2 (specifically, the mounting region 2a) changes its state to a separated state spaced downward from the tension insulator B (tensile insulator chain) as shown in FIG. 7B. To do. Specifically, the placement region 2a can be placed around the axis line along the second direction at the connection position between the placement portion 2 and the connection portion 4 (more specifically, with the rod-like portion 2g as an axis). The state changes to the separated state by pivoting downward from.

<Removal process>
Then, after changing the state of the mounting portion 2 (specifically, the mounting region 2a) to the separated state, the screw member 3q provided at the distal end portion of each upper arm portion 3h is loosened to each lower arm portion. The engagement with the groove 3r (see FIG. 3) provided at the tip of 3k is released. And as shown to Fig.8 (b), as shown to Fig.8 (b), as shown to Fig.8 (b) by taking out the brace A from between the upper member 3c and the lower member 3d with the fixed area | region 3a opened, as shown to Fig.8 (a). The tension insulator support 1 is removed from the arm metal A.

  As described above, according to the tension insulator support according to the present invention and the connecting method of the arm metal and the electric wire using the tension insulator support, the tension insulator is supported in a state of extending from the arm metal. And can be easily removed from the tension insulator.

  In other words, by placing the tension insulator B on the placement portion 2 in a state where it can be placed, the tension insulator B extends in the direction intersecting the axial direction of the utility pole and the extending direction of the arm metal A. The tension insulator B is supported in a state extended from (hereinafter also referred to as an extended state). Thereby, an operator's burden can be reduced rather than the case where an operator supports the tension insulator B by hand. Moreover, after the tension insulator B placed on the placement portion 2 is connected to the electric wire, the placement portion 2 is separated from the tension insulator B by changing the state of the placement portion 2 to the separated state. It becomes a state. Thereby, since the weight of the tension insulator B and the electric wire E is not added to the mounting part 2, the tension insulator support tool 1 can be easily detached from the arm metal A.

  Further, by providing the state fixing means 5, the mounting unit 2 is securely fixed to the mountable state and the mounting unit 2 is changed to the separated state by releasing the fixing of the mounting unit 2. Is possible. Thus, the tension insulator B placed on the placement portion 2 can be reliably held in the extended state until the connection work between the tension insulator B and the electric wire E is completed, and if necessary. Thus, the mounting part 2 can be separated from the tension insulator B by changing the state of the mounting part 2 to the separated state.

  In addition, the mounting portion 2 is connected to the connecting portion 4 so as to be rotatable about an axis along a direction intersecting the axis of the utility pole, so that the mounting portion 2 changes to a separated state. When this is done, the mounting portion 2 is retracted from at least a part of the lower region of the extended tension insulator B. As a result, even when the tension insulator support 1 is fixed to the arm metal A, a space without the placement portion 2 is formed below the extended tension insulator B. The work in the area below B can be easily performed.

  In addition, the mounting portion 2 is configured to be movable along the extending direction of the armrest A relative to the fixing portion 3 in a state where the tension insulator B can be mounted. When the mounting part 2 is moved to the position, a space is formed at the position where the mounting part 2 and the tension insulator B are arranged before the movement. Thereby, the work limited by the placement part 2 and the tension insulator B being located in such a space can be easily performed without being affected by the tension insulator B and the placement part 2.

  Moreover, the tension insulator B is held in the extended state by the placement portion 2 of the tension insulator support 1 by including the placement step. Thereby, since a connection process can be performed without an operator holding the tension insulator B in an extended state by hand, the burden on the operator can be reduced. Then, after the tension insulator B placed on the placement portion 2 is connected to the electric wire E, the placement portion 2 is changed to a separated state in the changing step, so that the placement portion 2 is in the tension insulator B. It will be in the state separated from. Thereby, since the weight of the tension insulator B and the electric wire E is not added to the mounting part 2, the tension insulator support tool 1 can be easily removed from the arm metal A in the removal step.

  The tension insulator support according to the present invention and the method of connecting the tension insulator and the electric wire are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. . Further, the configurations and methods of the plurality of embodiments described above may be arbitrarily adopted and combined (even if the configurations and methods according to one embodiment are applied to the configurations and methods according to other embodiments). Of course, it is of course possible to arbitrarily select configurations, methods, and the like according to various modifications described below and employ them in the configurations, methods, and the like according to the above-described embodiments.

  For example, in the above-described embodiment, the placement region 2a is configured to be positioned on a straight line along the first direction from the fixed region 3a in a state where the tension insulator support 1 is fixed to the arm metal A. However, the present invention is not limited to this. For example, like the tension insulator support 1 ′ shown in FIG. 9, the placement area 2a and the fixed area 3a are not positioned on a straight line, and the placement area 2a and the fixed area | region 3a may be comprised so that it may be in the state spaced apart in the 2nd direction.

  In such a case, the fixing region 3a can be fixed at a position separated from the fixing position of the tension lever B in the arm metal A in the direction in which the arm metal A extends. Thereby, since the fixing region 3a and the twisted strap C do not interfere with each other, the tension insulator support 1 'can be easily attached to the arm metal A.

  Moreover, in the said embodiment, the mounting part 2 rotates downward from the mounting possible state centering on the axis line along a 2nd direction in a connection position with the connection part 4, and changes a state to a separation | spacing state. Although it is configured, the present invention is not limited to this. For example, like the tension insulator support 1 '' shown in FIG. 10, the placement portion 2 'linearly moves downward from the placement possible state. Thus, the state may be changed to the separated state.

  Moreover, as shown to Fig.11 (a), you may comprise so that the fixing | fixed area | region 3a may be provided with the spring member 3s. The spring member 3s is configured such that the tip of each upper arm 3h and each lower arm are centered on the connecting position of the upper member 3c (specifically, the pair of upper arms 3h, 3h) and the lower member 3d. The upper member 3c (specifically, the pair of upper arm portions 3h and 3h) and the lower member 3d are configured to be biased in a direction in which the tip of the portion 3k approaches.

  As shown in FIG. 11 (b), the lower end portion of the upper first portion 3e is fixed to the end portion of the lower arm portion 3k to form the lower member 3d ′, and the upper end portion of the upper first portion 3e. The end portion of the upper second portion 3f may be coupled to be rotatable along the third direction (up and down direction) about the axis line along the second direction. That is, the upper member 3c ′ may be configured by the upper first portion 3e and the upper third portion 3g.

  DESCRIPTION OF SYMBOLS 1 ... Tension insulator support tool, 2 ... Mounting part, 2a ... Mounting area, 2b ... Connection area, 2c ... Mounting part main body, 2d ... Mounting part wall, 2e ... Mounting surface, 2f ... Concave surface, 2g ... rod-shaped part, 2h ... insertion hole, 3 ... fixing part, 3a ... fixing region, 3b ... connection region, 3c ... upper member, 3d ... lower member, 3e ... upper first part, 3f ... upper second part, 3g ... Upper third part, 3h ... Upper arm part, 3i ... Lower first part, 3j ... Lower second part, 3k ... Lower arm part, 3m ... Tightening means, 3n, 3p ... Projection part, 3q ... Screw member, 3r ... Groove part, 3s ... Spring member, 4 ... Connection part, 4a ... Insertion hole, 4b ... State fixing member, 4c ... Knob part, 4d ... Projection part, 4e ... Insertion hole, 4f ... Step part, 5 ... State fixing means, A ... Arm, B ... Tensile insulator, B1 ... Insulator body, B2 ... Insulator connection part, B3 ... Body attachment part, C ... Torsion strap, D ... Pull Because clamp, E ... wire, E1 ... heart line

Claims (5)

A tension insulator support that supports the tension insulator when connecting the tension insulator attached to the armature extending from the utility pole and the electric wire in a direction intersecting the axis of the utility pole,
A mounting portion for mounting the tension insulator, a fixing portion fixed to the armrest, and a connecting portion for connecting the mounting portion and the fixing portion;
In the state in which the fixing portion is fixed to the armrest, the mounting portion is disposed along a direction intersecting the axis of the utility pole and the extending direction of the armrest, and the mounting portion on which the tension insulator can be placed. A tension insulator support device configured to be capable of changing a state between a state where it can be placed and a separated state separated downward from a tension insulator coupled to a brace and an electric wire.   2. The tension insulator support according to claim 1, further comprising state fixing means configured to be able to fix the mounting portion in a mountable state and to be able to release the fixing.   2. The mounting unit according to claim 1, wherein the mounting unit is connected to the connecting unit so as to be rotatable about an axis along a direction intersecting with the axis of the utility pole, so that the state can be changed. Or the tension insulator support tool of 2.   4. The mounting portion according to claim 1, wherein the placing portion is configured to be movable along the extending direction of the arm metal relative to the fixed portion in a state where the tension insulator can be placed. The tension insulator support according to any one of the above. A method of connecting a tension insulator and an electric wire, wherein the tension insulator and the electric wire are connected using the tensile insulator support according to any one of claims 1 to 4,
In a state where the fixed portion of the tension insulator support is fixed to the armrest, a placement step of placing the tension insulator coupled to the armrest on the placement portion, and a resistance resistance placed on the placement portion. A connecting step of connecting the tension insulator and the electric wire, a changing step of changing the placement portion from the mountable state to the separated state in a state where the tension insulator and the electric wire are connected, and the placement portion in the separated state A method of connecting a tension insulator and an electric wire, comprising: a step of removing the tension insulator support from the arm metal in a state where the state is changed.

Images