JP5823197B2 - Wire retention method - Google Patents

Description

  The present invention relates to an electric wire retaining method, and more particularly to an electric wire retaining method for retaining an electric wire on a support such as a utility pole.

  2. Description of the Related Art Conventionally, an electric wire retaining structure that retains an electric wire on a support portion such as a utility pole is known, for example, in Patent Document 1 and the like.

  In the conventional wire retaining structure known from Patent Document 1, a wedge-shaped retaining clamp is attached to a distribution line, and further supported by a brace of a support such as a utility pole via a support insulator.

  An example of a conventional wire retaining method for retaining the distribution line on a support via a wedge-shaped retaining clamp and a supporting insulator will be described with reference to FIG. In the wire holding method shown in the figure, a shimmer clamp 53 having a wiring drawing lever 52 for drawing the distribution line 51 and one end connected to a brace 55 of a support (not shown) such as a utility pole via a support lever 54. The other end is clamped and fixed to the distribution line 51.

  In this electric wire retaining system, the retaining clamp 56 is rotated downward by its own weight together with the support insulator 54 before being clamped to the distribution line 51, and hangs down to a position indicated by a symbol D in FIG. Is retained.

  Then, when performing the wire holding work, the worker M gets on the arm bucket 100 such as an aerial work vehicle and performs the construction work at the high work position by the following procedure, for example.

  (1) First, the one end 53a side of the shimmer clamp 53 is held and fixed to the distribution line 51, and the extendable connecting member 58 provided on the other end 53b is connected to the arm metal 55, and then By reciprocatingly swinging the wiring pulling lever 52 to reduce the length of the connecting member 58, the distribution line 51 is pulled to the arm metal 55 side to a predetermined position.

  (2) Next, the holding clamp 56 and the supporting insulator 54 that are in a suspended state are simultaneously lifted up to a substantially horizontal state by the operator M, and the clamp portion 57 of the holding clamp 56 is lifted at the horizontal position. The distribution line 51 is held and fixed at a predetermined position.

  (3) Thereafter, when the shimmer clamp 53 is removed from the laid distribution line 51 and the arm metal 55, the operation is completed, and the distribution line 51 is retained in a predetermined state.

JP2003-224923A.

  However, in the conventional wire holding method, the operator is hung at a high position, and is lifted to a horizontal state by holding the holding clamp 56 together with the support lever 54 having a relatively large weight, and is held. It is necessary to grip and fix the clamp portion 57 of the clamp 56 at a predetermined position of the distribution line 51. For this reason, the worker M was forced to work hard, and improvement was desired.

  Therefore, simultaneously with the drawing work of the distribution line, the technique to be solved to enable the holding clamp and the support bracket to be easily rotated to a predetermined position so that the holding clamp can be held and fixed to the distribution line. The present invention aims to solve this problem.

The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 is an electric wire retaining system in which a distribution line is retained on a support through a lever by a wedge-type retention clamp. A shimler clamp that has a lever that pulls the electric wire and fixes one end to the distribution line, and one end that is pivotally connected to the support via the insulator and the other end is clamped and fixed to the distribution line. a wedge anchor clamps to the mounting detachably the other end as well as detachably connected to the Shimera clamp the wedge anchor clamp one end, in conjunction with the operation of the Shimera clamp pulls the distribution line There is provided a wire retaining system using a puller attachment for rotating the wedge-shaped retaining clamp toward the distribution line and pulling it.

According to this method, in conjunction with the operation of the distribution line pulling lever pulling the distribution line, the wedge-type retaining clamp is rotated to a predetermined position together with the lever to approach the distribution line. Then, at a predetermined position approaching the distribution line, the wedge-type retaining clamp can be held by the distribution line and fixed. In addition, since the turning operation for drawing the distribution line of the wire drawing lever is an operation by lever operation using the distribution line drawing lever, the wedge-type holding clamp and the lever can be easily operated with a small force.

According to the first aspect of the present invention, when the distribution line pulling lever for drawing the distribution line is reciprocally rotated, the wedge-type holding clamp is rotated together with the insulator to a predetermined position on the distribution line side simultaneously with the pulling of the distribution line, Since the wedge-type retaining clamp can be gripped by the distribution line at a predetermined position, the retaining lamp and the insulator can be rotated and attached to the predetermined position with a small force. Thereby, improvement in workability can be expected.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows one Example of the electric wire securing method by embodiment of this invention, (a) is a figure which shows the state in the middle of drawing, (b) The figure which shows the state at the time of drawing completion. The side view which shows the securing clamp which attached the puller attachment in a present Example. The side view of the clamping clamp in a present Example. AA expanded sectional view of FIG. It is a perspective view of the pull attachment in a present Example, (a) is a figure before clamping, (b) is a figure at the time of clamping. It is a side view which shows an example of the conventional electric wire securing method, (a) is a figure which shows the state in the middle of drawing, (b) is a figure which shows the state at the time of drawing completion.

The present invention achieves the object of enabling the holding clamp and the support fitting to be easily rotated to a predetermined position simultaneously with the drawing operation of the distribution line so that the holding clamp can be held and fixed to the distribution line. For this purpose, in a wire retaining system in which a distribution line is retained on a support by a wedge-shaped retention clamp through a lever, a shimler clamp having a lever for pulling the distribution line and fixing one end to the distribution line, and the lever A wedge-type retaining clamp for connecting one end to the support so as to be pivotable in the vertical direction and clamping the other end to the distribution line via one end, and one end detachably connected to the shimmer clamp and the other end the removably attached to the wedge anchoring clamp, the said wedge-shaped anchor clamps in conjunction with the operation of the Shimera clamp pulls the distribution line distribution A pull tab attachment attract is rotated to the line side, it was achieved by using a.

  Hereinafter, preferred examples of the wire retaining system according to the embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a side view showing an embodiment of a wire retaining system according to the present invention. In this figure, this wire retaining system is a shimmer clamp 13 provided with a wiring pulling lever 12 for pulling the distribution line 11, and one end of a brace 15 of a support (not shown) such as a utility pole via a support insulator 14. The holding clamp 16 is connected and clamped at the other end to the distribution line 11 and fixed. The pull attachment 17 is detachably attached to the holding clamp 16.

FIG. 1 is a side view showing an embodiment of a wire retaining system according to the present invention. In this figure, this wire retaining system is a shimmer clamp 13 provided with a wiring pulling lever 12 for pulling the distribution line 11, and one end of a brace 15 of a support (not shown) such as a utility pole via a support insulator 14. A retaining clamp 16 as a wedge-shaped retaining clamp that is connected and clamped and fixed to the distribution line 11 and a puller attachment 17 that is detachably attached to the retaining clamp 16 are used.

  Then, when performing the electric pick-up work, the worker M gets on the arm bucket 100 such as an aerial work vehicle and performs the construction work at the high work position in the following procedure, for example.

  (1) First, the one end 13a of the shimmer clamp 13 is held and fixed to the distribution line 11, and the hook 30a of the hook member 30 attached to the extendable connecting member 28 provided on the other end 13b side is attached to the hook 30a. By engaging with the engagement hole 20 of the puller attachment 17, the shimler clamp 13 and the pulling clamp 16 are connected via the puller attachment 17. The connecting member 28 is adjusted so that the ring diameter of the connecting member 28 is gradually reduced and the effective length of the connecting member 28 is gradually shortened when the wiring pulling lever 12 is reciprocally swung. Thus, the distance between the shimler clamp 13 and the retaining clamp 16 can be reduced.

  (2) Next, when the operator reciprocally swings and turns the wiring pulling lever 12, the distance between the shimler clamp 13 and the holding clamp 16 is narrowed, and thereby the distribution line 11 is drawn, The pull attachment 17 and the pull clamp 16 also come close to each other, and the pull clamp 16 and the pull attachment 17 are rotated together with the support lever 14 to a position indicated by a symbol U in FIG. To be. Further, in this horizontal state, the retaining clamp 16 approaches the distribution line 11. In this state, the retaining clamp 16 is held and fixed at a predetermined position of the distribution line 11. FIG. 1B shows this state.

  (3) Thereafter, the hook 30a of the hook member 30 attached to the connecting member 28 is removed from the engagement hole 20 of the pull attachment 17 and the shimler clamp 13 is connected to the distribution line 11 and the arm metal 15 When it is removed, the operation is completed, and the distribution line 11 is retained in a predetermined state.

  Therefore, according to this wire retaining method, the retaining clamp 16 is lifted and rotated to a predetermined position together with the support lever 14 in conjunction with the reciprocating rotation operation of the distribution wire pulling lever 12 that pulls the distribution wire 11. The retaining clamp 16 can be gripped by the distribution line 11 at the predetermined position. Since the turning operation of the electric wire pulling lever 12 is an operation by lever operation, the holding clamp 16 and the support lever 14 can be easily turned to a predetermined position with a small force. Thereby, improvement in workability can be expected.

  FIG. 2 shows a more specific example of the structure of the retaining clamp 16 and the puller attachment 17 in the present embodiment. FIG. 3 is a side view of the clamping clamp 16 before the puller attachment 17 is attached, FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 5 is a perspective view of the puller attachment 17. is there.

  The retaining clamp 16 is of a wedge side connection type, and a wedge 18 connected to the support lever 14 and a distribution line 11 between the wedge 18 and the wedge 18 fitted from the support lever 14 side. And a clamping clamp main body 19 for gripping.

  As shown in FIG. 4, the wedge 18 has a wire receiving groove 18a for receiving the distribution line 11 on the upper surface side, and has a protruding guide portion 18b on the lower surface side, and slides on both sides of the guide portion 18b. Each has a contact surface 18c. Further, an attachment attachment portion 18d having a shaft shape protrudes from the rear end side of the wedge 18, and a connection piece 18e having an attachment hole 27 connected to the support insulator 14 on the rear end side of the attachment attachment portion 18d. Is formed.

  As shown in FIG. 4, the retaining clamp main body 19 that accommodates the wedge 18 is provided with inwardly extending portions 19a that are in contact with the sliding contact surface 18c of the wedge 18 on the left and right sides of the lower portion. It is a partially open hollow body formed by opening, and has an electric wire receiving groove 19b on the upper inner surface. A serration (not shown) is formed on the surface of the wire receiving groove 19b to prevent slippage between the wire 11 and the retaining clamp body 19 with the wire 11. Only the wedge 18 slides relative to the retaining clamp body 19 and the distribution line 11 so that the wedge action is secured.

  Therefore, in the wedge-type retaining clamp 16 configured as described above, the distribution line 11 is accommodated in the electric wire accommodation groove 18a at a predetermined position of the distribution line 11, and the distribution line 11 is sandwiched therebetween and vice versa. On the side, when the retaining clamp body 19 is fitted to the wedge 18 from the support lever 14 side, the distribution line 11 can be gripped and fixed. 3 and 4, reference numeral 25 denotes a stopper pin that prevents the retaining clamp body 19 fitted to the wedge 18 from coming out, and the stopper pin 25 attaches the retaining clamp body 19 to the stopper pin 25. After the attachment, it is inserted into the wedge 18 and attached.

  The pull attachment 17 is of a screw coupling type, and the attachment clamp main body 17a having a pull arm 21 that can be connected to the shimmer clamp 13 and the attachment mounting portion 18d of the wedge 18 are sandwiched between the pull attachment 17 and the attachment clamp main body 17a. A movable clamp portion 17b that is disposed to face the portion 17a and grips the attachment mounting portion 18d together with the attachment clamp main body portion 17a, and is attached rotatably through the lower end base 24 of the attachment clamp main body portion 17a. A fastening bolt 17c is provided.

  The attachment clamp main body portion 17 a has an upper portion formed in a downward U shape, and the attachment attachment portion 18 d can be accommodated in the U-shaped groove 23. As shown in FIG. 2, the lower end base 24 facing the attachment mounting portion 18d is formed with a screw hole 26 penetrating in the vertical direction, and the side of the lower end base 24 is provided with the puller. An arm 21 is projected.

  The movable clamp portion 17b has an accommodation groove 29 for receiving the attachment mounting portion 18d on the upper surface side, and the lower surface side is rotatably connected to the upper end portion of the fastening bolt 17c.

  The fastening bolt 17c is screwed into a screw hole 26 provided in the attachment clamp main body portion 17a and is rotatably attached. A knob 22 is provided on the lower end side.

  Therefore, when the puller attachment 17 configured in this manner is used to move the clamping bolt 17c in the loosening direction by holding the knob 22 in the attachment mounting portion 18d of the clamping clamp 16, the movable clamp portion 17 17b moves downward as shown in FIG. 5 (a), and a gap is provided between the attachment clamp main body 17a and the movable clamp part 17b to accommodate the attachment mounting part 18d. In this state, the attachment mounting portion 18d is accommodated in the U-shaped groove 23.

  Next, when the fastening bolt 17c is rotated in the fastening direction, the movable clamp 17b moves upward as shown in FIG. 5 (b). As a result of this movement, the attachment attachment portion 18d accommodated between the attachment clamp main body portion 17a and the movable clamp portion 17b is gripped, and the puller attachment 17 is attached to the attachment attachment portion 18d of the retention clamp 16. Can be fixed to.

  On the other hand, when the puller attachment 17 is removed from the retaining clamp 16, the tightening bolt 14c is rotated in the loosening direction, and the clearance between the attachment clamp main body portion 17a and the movable clamp portion 17b is greatly separated. create. When the clearance is utilized, the puller attachment 17 can be detached from the retaining clamp 16.

  It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

  The present invention can be applied to, for example, a device for laying a cable other than a method of holding an electric wire on a support such as a utility pole.

DESCRIPTION OF SYMBOLS 11 Distribution line 12 Wiring drawing lever 13 Shimmer clamp 14 Support lever 15 Armature 16 Retaining clamp 17 Pulling attachment 17a Attachment clamp main-body part 17b Movable clamp part 17c Tightening bolt 18 Wedge 18a Electric wire accommodation groove 18b Guide part 18c Sliding surface 18d Attachment mounting portion 18e Connecting piece 19 Holding clamp main body 19a Inwardly extending portion 19b Wire receiving groove 20 Mounting hole 21 Pulling arm 22 Knob 23 U-shaped groove 24 Lower end base portion 25 Stopper pin 26 Screw hole 28 Connecting member 29 Housing groove 30 Hook material 30a Hook

Claims (1)

In the wire retaining system in which the distribution line is retained on the support by the wedge-shaped retaining clamp through the insulator,
A shimmer clamp having a lever for pulling the distribution line and fixing one end to the distribution line;
A wedge-type retaining clamp that connects one end to the support so as to be pivotable in the vertical direction via the lever and clamps and fixes the other end to the distribution line;
Attaching one end detachably the other end as well as detachably connected to the Shimera clamp to the wedge anchoring clamp, the said wedge-shaped anchor clamps in conjunction with the operation of the Shimera clamp pulls the distribution line A puller attachment that rotates and pulls toward the distribution line,
Wire retention method characterized by using

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