JP4173399B2 - Electrical installation jig - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric installation work jig used to construct a guide wire for supporting a spare transmission line between electric poles.
[0002]
[Prior art]
Commercial power is supplied via a power transmission line installed on a telephone pole installed at a predetermined interval on the road. When conducting electrical work such as maintenance and inspection of the transmission line, a spare transmission line is installed to prevent the supply of commercial power from stopping. When a spare power transmission line is attached, first, a guide wire is stretched between the telephone poles, and both ends of the spare power transmission line are connected to corresponding transformers or the like in a state where the spare power transmission line is supported by the guide wire. In order to install a guide wire between two telephone poles, an annularly shaped mounting member is installed on the outer peripheral surface of each telephone pole, and one end of the guide wire is attached to one telephone pole. And the other end is connected to the mounting member of the other telegraph pole.
[0003]
[Problems to be solved by the invention]
However, the inner diameter of the mounting member cannot be adjusted. On the other hand, the size of the telegraph pole varies from one solid to another, and the outer diameter of each telegraph pole varies depending on the part. Therefore, the operator must repeat the work of winding and removing a plurality of mounting members having different inner diameters around the telephone pole until a mounting member that matches the outer diameter of the position where the mounting member is mounted on the telephone pole is specified. Don't be. As a result, it takes a lot of time and labor to install one guide wire, which is a heavy burden on the operator.
[0004]
The present invention solves the above-described problems, and an object of the present invention is to increase the work efficiency of the work of constructing a guide wire that supports a backup power transmission line in electrical work.
[0005]
[Means for Solving the Problems]
An electrical installation jig according to the present invention is an electrical installation jig for laying a guide wire that supports a spare transmission line installed during an electrical work between electric poles, and is wound around the electric pole. A member, a first annular member for supporting the guide wire provided at one end of the winding member, and a tensioner provided near the first annular member for pulling the guide wire A second annular member for supporting, and a third annular member which is provided at the other end of the winding member and is engaged with an arbitrary position of the winding member by inserting the one end. It is characterized by providing.
[0006]
According to the present invention, one end of the winding member is inserted into the third annular member provided at the other end of the winding member, and an arbitrary position of the winding member is set to the third annular member. Configured to engage. Therefore, the operator can freely adjust the size of the inner diameter of the ring formed by the winding member according to the outer diameter of the telegraph pole by appropriately adjusting the engagement position of the winding member. As a result, the work efficiency of guide wire erection work in electrical work is improved.
[0007]
Preferably, the first annular member is formed by bending one end portion of the winding member in an annular shape and fixing the tip end portion at a predetermined position of the one end portion, and the third annular member is It is formed by bending the other end of the winding member in an annular shape and fixing its tip at a predetermined position on the other end.
[0008]
Preferably, in the first annular member, the second annular member is provided between a position farthest from a fixed position where the tip of one end is fixed and the fixed position. As a result, when the guide wire is pulled by the wire drawing machine, even if a large tension is applied to the second annular member to deform it, the pulling force of the wire drawing machine does not affect the first annular member. Therefore, there is no problem in mounting the guide wire to the first annular member.
[0009]
Preferably, an anti-sliding member is provided at the winding portion to prevent sliding with respect to the telephone pole. This sliding prevention member is, for example, a rubber member that covers the winding portion.
[0010]
By providing the anti-slip member, the winding part may be displaced along the circumferential direction or the axial direction of the telegraph pole during the installation work of the electric construction jig and the construction work of the guide wire. Sliding down is prevented. Therefore, the work efficiency is further improved and the danger caused by dropping the jig is prevented.
[0011]
The winding portion may be, for example, a wire, a chain, or a cloth belt-like member obtained by twisting a plurality of metal thin wire members.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an external view of an electrical installation work jig to which an embodiment according to the present invention is applied. The winding member 10 of the electrical installation work jig 1 is a single wire obtained by twisting together a plurality of metal linear members. The winding member 10 is flexible and has a predetermined elastic force. The vicinity of one end portion 10A of the winding member 10 is bent in an annular shape, and the tip end portion is fixed to a predetermined position of the end portion 10A by an aluminum clamp 20. Thereby, the annular guide wire support member 11 (first annular member) is formed.
[0013]
The annular wire feeder support member 12 (second annular member) is a metal wire similar to the winding member 10. The drawing machine support member 12 is bent into an annular shape, and both ends thereof are fixed to the guide wire support member 11 by clamps 21 made of aluminum. The wire feeder support member 12 is provided in the vicinity of the guide wire support member 11, and is fixed between the position farthest from the clamp 20 and the clamp 20 in the guide wire support member 11.
[0014]
The vicinity of the other end portion 10B of the winding member 10 is also bent in an annular shape, and the tip end portion thereof is fixed at a predetermined position of the end portion 10B by an aluminum clamp 22. Thereby, the annular locking member 13 (third annular member) is formed.
[0015]
Thus, the winding member 10, the guide wire support member 11, and the locking member 13 are a single metal wire, and the wire feeder support member 12 is a separate metal wire.
[0016]
The guide wire support member 11 is provided with a round thimble 30. The round thimble 30 has a substantially cylindrical shape, and the guide wire support member 11 is inserted into a hole formed coaxially with the shaft center. A round groove is formed on the outer peripheral surface of the round thimble 30 along the circumferential direction.
[0017]
The winding member 10 is covered with a rubber hose 14 except for the guide wire support member 11 and the locking member 13.
[0018]
FIG. 2 is a view showing a state where the electric construction work jig 1 is attached to the telephone pole. The winding member 10 is wound around the outer peripheral surface of the telephone pole, and the end portion 10 </ b> A is inserted through the locking member 13. And while moving the position which engages with the locking member 13 of the winding member 10 so that the inner diameter of the ring formed by the winding member 10 coincides with the outer diameter of the telegraph pole, the winding pole 10 causes the telephone pole to move. Tighten. Thus, since the engagement position with the locking member 13 can be arbitrarily determined, the size of the ring formed by the winding member 10 can be freely adjusted according to the outer diameter of the telephone pole. . In addition, by covering the winding member 10 with the hose 14, it is possible to prevent the winding member 10 from sliding along the circumferential direction or the axial direction of the telegraph pole or the electrical construction jig 1 from sliding down. The
[0019]
FIG. 3 is a view showing one end of a guide wire installed between telephone poles. The guide wire 40 is a member obtained by twisting a plurality of metal linear members. A steel wire 41 is fixed near the tip of the guide wire 40. The steel strand 41 is attached by winding both ends around the guide wire 40 to form an annular engaging portion 41A. The steel strand 41 is wound around both ends of the guide wire 40.
[0020]
FIG. 4 is a diagram showing a tensioning machine 50 that pulls the guide wire 40. The main body 51 and the camler 52 of the wire drawing machine 50 are connected by a belt 53. The guide wire 40 is held by the camler 52. By operating a handle 54 provided on the main body 51, the belt 53 is wound around the main body 51, and the camler 52 moves in a direction approaching the main body 51. A hook 55 is provided at a position on the opposite side of the main body 51 where the camler 52 is located.
[0021]
The guide wire 40 is installed between the two telegraph poles in the following procedure. A steel strand wound around one end (support end) of the guide wire 40 around the round thimble 30 of the guide wire support member 11 of the electrical installation jig 1 attached to one of the telegraph poles (support side telegraph pole). 41 engaging parts 41A are engaged. The hook 55 of the wire drawing machine 50 is engaged with the wire drawing machine support member 12 of the electric construction work jig 1 attached to the other telephone pole (attachment side telephone pole). The vicinity of the other end portion (attachment end portion) of the guide wire 40 is gripped by the camler 52 of the wire drawing machine 50. From the location gripped by the camler 52 of the guide wire 40 to the tip of the mounting end is free. In this state, the belt 53 Zhang winding machine 50 by operating the handle 5 4 so as to be wound on the body 5 1, Kamura 52 is pulled in the direction of approaching the body 5 1. As a result, the guide wire 40 is tensioned with a predetermined tension.
[0022]
As described above, the portion from the position gripped by the camler 52 of the guide wire 40 to the tip of the attachment end is in a free state. That is, even if the guide wire 40 is tensioned between the support end portion and the camler 52, the vicinity of the attachment end portion is free. Therefore, Kamura 52 by operation of the handle 5 4 Zhang winding machine 50 is as long as close to the body 51, the electrical construction work jig 1 the engagement portion 41A of the mounting side power pole line 41 than steel guide wire support member 11 The steel strand 41 can be wound around the attachment end portion of the guide wire 40 in a state where it is engaged with the round groove of the round thimble 30. Thereby, the guide wire 40 is constructed between two telephone poles.
[0023]
When tensioning the guide wire 40 by operating the handle 5 4 Zhang winding machine 50, the hook 55 of the clad wire machine 50 is engaged, Zhang winder support member 12 of the electrical construction work jig 1 of the mounting side utility pole is tension Due to deformation. However, since the drawing machine support member 12 is fixed between the clamp 20 and the position farthest from the clamp 20 in the guide wire support member 11, the tension due to the traction force of the drawing machine 50 is increased. Even if it is transmitted to the guide wire support member 11 via the support member 12, the guide wire support member 11 is not deformed. Therefore, the work of engaging the steel strand 41 at the mounting end of the guide wire 40 with the round thimble 30 of the guide wire support member 11 is not hindered.
[0024]
As described above, the winding member 10 has an elastic force. Therefore, in a state where the winding member 10 is wound around the outer peripheral surface of the telegraph pole, the end portion 10A is inserted through the locking member 13 and the telegraph pole is tightened, the winding member 10 is engaged with the locking member 13. A predetermined angular attitude is maintained with respect to the horizontal direction without hanging down from the vertical direction (see FIG. 2). That is, in the operation of engaging the engagement portion 41A of the steel strand 41 of the guide wire 40 with the round thimble 30 and the operation of engaging the hook 55 of the wire drawing machine 50 with the wire drawing machine support member 12, the winding member 10 is located at a position where an operator can easily take a part from the engagement position with the locking member 13 to the end portion 10A. Therefore, these operations are easily performed and the work efficiency is improved.
[0025]
In this embodiment, the winding member 10 is made of a metal wire, but the present invention is not limited to this, and a chain may be used. If the winding member 10 is a chain, it cannot be restored to its original shape while being bent at the engagement position with the locking member 13, so that it can be used multiple times. Further, a cloth belt such as nylon or polyester may be used for the winding member 10. Compared to metal wires and chains, the operator's hand is not damaged, so work safety is guaranteed.
[0026]
Even when a chain or a cloth belt is used for the winding member 10, it is covered with a hose 14 for preventing slippage and sliding. In particular, in the case of a cloth belt, by covering with a hose 14, there is no direct contact with the outer peripheral surface of a telegraph pole that has become rough after many years of use, so that the effect of preventing wear can be obtained.
[0027]
【The invention's effect】
As described above, according to the present invention, the work efficiency of the construction work of the guide wire that supports the spare power transmission line is improved.
[Brief description of the drawings]
FIG. 1 is an external view of an electrical construction jig to which an embodiment according to the present invention is applied.
FIG. 2 is a view showing a state in which an electrical installation jig is attached to a telephone pole.
FIG. 3 is a view showing an end portion of a guide wire installed between telephone poles.
FIG. 4 is a diagram showing a tensioning machine that pulls a guide wire.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electric construction jig 10 Winding member 11 Guide wire support member 12 Wire drawing machine support member 13 Locking member 20, 21, 22 Clamp 30 Round thimble

Claims (7)

An electric construction jig for installing a guide wire for supporting a spare power transmission line installed during electric work between electric poles,
A winding member wound around a telegraph pole;
A first annular member provided at one end of the winding member and having elasticity for supporting the guide wire;
A second annular member fixed to the first annular member for supporting a tensioning machine that pulls the guide wire;
A third annular member that is provided at the other end of the winding member and that engages an arbitrary position of the winding member by inserting the one end;
In the first annular member, the second annular member is a position farthest from the tip of the one end of the winding member and the position where the guide wire is engaged , It is provided between the front-end | tip part of the edge part of this, The electrical construction jig characterized by the above-mentioned. The first annular member is formed by bending the one end portion of the winding member in an annular shape and fixing a tip portion thereof to a predetermined position of the one end portion,
The third annular member is formed by bending the other end portion of the winding member in an annular shape and fixing a tip portion thereof to a predetermined position of the other end portion. Item 3. The electrical construction jig according to Item 1.   The electric construction jig according to claim 1, further comprising a sliding prevention member provided on the winding member to prevent sliding with respect to the telephone pole.   The electric installation work jig according to claim 3, wherein the sliding prevention member is a rubber member that covers the winding member.   The electric installation jig according to claim 1, wherein the winding member is a wire obtained by twisting a plurality of metal thin wire members.   The electric construction jig according to claim 1, wherein the winding member is formed of a chain.   The electrical installation jig according to claim 1, wherein the winding member is a belt-shaped member made of cloth.

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