JP2551995Y2 - Feeding wire support structure with steel tube columns - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure suitable for supporting a feeder wire by a pole.

[0002]

2. Description of the Related Art In general, a train line is a trolley line for supplying electricity by contacting a pantograph of a train, a trolley line for supporting the trolley line from above, and further arranged above and supplying electricity to the trolley line. It consists of squid wires, which are supported by pillars. At present, in order to support these train lines, especially feeder wires by pillars, concrete pillars are erected from the reference plane, and the concrete pillars are used to support L-shaped or U-shaped feeder wires horizontally. The arm is provided so as to protrude, and the electric wire is suspended from the electric wire supporting arm via an insulator or the like. More specifically, a utility pole band is wound around a concrete pole, and the feeder wire supporting arm is fixed to the utility pole by this utility pole band. It is most desirable to attach it to

[0003]

As described above, when the feeder wire supporting arm is mounted horizontally on the utility pole, the height of the utility pole must be equal to or higher than the height of the feeder wire. More specifically, in the case of a feeder line generally disposed at the highest place in a train line, the height of the feeder line is about 8.5 m on the track, and the height of the utility pole is also required. as a result,
The strength against external forces such as wind pressure also increases as the height of the pole increases. In addition, since the wind pressure increases in proportion to the thickness of the utility pole, it must be said that arranging a high and thick utility pole is extremely uneconomical. Also, from today's point of view of landscape protection, tall and thick utility poles are not very good. Thus, the present invention provides a wire support structure that can solve such problems, can reliably support the wire support arm, and can also improve workability such as maintenance and inspection. I will do it.

[0004]

Accordingly, the present invention solves the above-mentioned problems by providing a feeder wire support structure characterized by the following constitution. In the feeder wire supporting structure of the present invention, the feeder wire is supported by the steel pipe post 1 and the wire supporting arm 2 which is thinner than the steel pipe post 1. The base end of the feeder wire supporting arm 2 is fixed to the upper end of the steel pipe column 1. On the other hand, the distal end of the feeder wire supporting arm 2 has a feeder wire erection portion 9 for supporting an insulator g that suspends the feeder wire k, and is arranged above the upper end of the steel pipe column 1. Things. And this wire support structure
In the case of the structure, the support plate bodies 4, 4, 10
1a and 101a are arranged on the outer periphery of the steel pipe column 1 near the upper end,
The support plate main bodies 4, 4, 101a,
The end t of 101a and the outer periphery near the upper end of the steel pipe column 1 are fixed.
Between the support plate bodies 4, 4, 101a, 101a.
The base end of the feeder wire supporting arm 2 is fixed in a
You. Also, the support plate bodies 4, 4, 101a, 101a
Between the outer periphery of the steel pipe column 1 near the upper end thereof,
1b, and the reinforcing portions 5, 101b
It is noted that the working rope insertion portions 5a and 105 are formed.
Sign.

[0005]

In the invention of the present application, in order to arrange electric wires such as feeder wires at a required height, an electric wire supporting arm is extended above the steel pipe column and narrower than the steel pipe column. Therefore, the length of the column can be shortened by an amount corresponding to the height secured by the feeder wire supporting arm, and the entire column up to the same height is secured by the column. The area receiving the wind becomes smaller. As a result, in the structure according to the present invention, the strength against external forces such as wind pressure may be smaller than when the entire height is secured by the columns. In addition, the length of the pillar can be shortened by an amount corresponding to the upward height secured by the feeder wire supporting arm, which is advantageous in terms of scenery and beauty. Furthermore, by using steel pipe columns as the columns, unlike conventional concrete columns, wire bands are not required, and secure fixing can be achieved as follows.
You. That is, the supporting plate bodies 4, 4, 101 forming a pair on the left and right.
a, 101a are vertically arranged on the outer periphery of the steel pipe column 1 near the upper end.
And the support plate bodies 4, 4, 101a, 1
01a and the outer periphery near the upper end of the steel pipe column 1 are fixed.
Between the support plate bodies 4, 4, 101a, 101a.
The base end of the feeder wire supporting arm 2 is fixed in a
The base end of the feeder wire supporting arm 2 is
Support plate body that makes a pair from left and right over appropriate length in the direction
4, 4, 101a, and 101a. Soshi
And the support plate bodies 4, 4, 101a, 101a and the steel pipe.
Between the outer periphery near the upper end of the column 1, reinforcing portions 5, 101b are provided.
The support plate bodies 4, 4, 101a, 1
01a itself is securely fixed to the steel column 1 without shaking
Is done. In addition, the reinforcing portion 5
By rope insertion portion 5a, 105 are made form,
The protection of the feeding wire support arm 2 and the convenience of workability are both improved.
It is something that goes up.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a feeder wire support structure according to an embodiment of the present invention, FIG. 2 is a side view of the main part, and FIG.
FIG. 3 is a sectional view taken along line III-III in FIG. 1.

In this feeder wire support structure, a feeder wire supporting arm 2 attached to a position near the upper end of the steel pipe post 1 (hereinafter referred to as a steel pipe post 1) includes
Its main part is configured.

The steel pipe column 1 is formed of a cylindrical steel pipe having a length of about 8 m, and a steel cap 3 is fixed to an upper end thereof by welding or the like. The position near the upper end of the steel pipe column 1,
In Immediately below the cap 3 in this embodiment, the support means in the range of the pair of support plates 4, 4 (utility model registration according to the left and right board book
Body) welds its end t to the outer peripheral surface of the steel pipe column 1.
And is fixed by. Each support plate 4 is provided with a plurality of, in this embodiment three, bolt insertion holes 41. Further, between the pair of support plates 4 and 4 and the outer periphery of the steel tube column 1, reinforcing members 5 and 5 having an arc shape in a plan view are passed. The reinforcing members 5 and 5 reinforce the support plates 4 and 4, and when a worker climbs the steel pipe column 1 or the like, a rope or the like is passed through a space 5a inside the reinforcing member 5 ,
It can also be used to increase the safety of its work. Although not shown, the base end of the steel pipe column 1 is provided with an appropriate leg, and an appropriate structure such as a structure in which the leg is fixed to a concrete foundation or a structure embedded in the ground is adopted. Can be.

Next, the feeder wire supporting arm 2 is made of a steel pipe, and a cap 6 is fixed to the upper end thereof by welding. The feeder wire supporting arm 2 has an outer diameter of about one third of the steel pipe column 1. In addition, this wire support arm 2
The ratio of the outer diameter of the steel pipe column 1 to the outer diameter of the steel pipe column 1 may be appropriately determined on condition that the feeder wire supporting arm 2 is thinner than the steel pipe column 1.
It changes depending on the strength, thickness, length, shape, etc. of the material,
When a steel pipe having a circular cross section is used for the feeder wire supporting arm 2,
It is desirable that the thickness be less than about one half of the steel pipe column 1. That is, if the feeder wire supporting arm 2 is thinner than the steel tube column 1, the wind pressure received by the feeder line support arm 2 becomes smaller than that of the steel tube column 1, but the outer diameter of the steel tube column 1 is about half or less. By doing so, the wind pressure received by the feeder wire supporting arm 2 is significantly reduced, and the strength of the steel pipe column supporting the feeder wire supporting arm 2 can be further reduced.

A plurality of (four in this embodiment) bolt insertion holes 21 are formed at the base end of the feeder wire supporting arm 2, and are arranged between the pair of support plates 4, 4. Being
As shown in FIGS. 2 and 3, it is fixed by bolts 7 and nuts 8. In this embodiment, the upper end of the steel pipe column 1 is used.
The base end of the wire support arm 2 was fixed to the side of
The specified structure is appropriate within the scope of the claims of the utility model registration.
It can be changed as needed. Thus, even when changing to various fixed structures, since the steel pipe column 1 is used, the support plate 4 is used.
In some cases, the arm 2 for supporting the wire can be welded, and the bolts and nuts can be easily used.
An appropriate fixing structure can be easily implemented.

Although the shape of the wire supporting arm 2 is free, in this embodiment, a little less than about one-half extends from the base end in the vertical direction, and at the tip side, the track side (in FIG. 1) Left side) bent and extends diagonally upward. The use of a steel pipe is advantageous because the required strength can be easily ensured even during this bending. Further, the straight feeder wire supporting arm can be fixed to the steel pipe column 1 in an inclined state.

The tip of the feeder wire supporting arm 2 is
The feeder wire erected portion 9 is fixed by welding to a position higher than the upper end of the wire feeder. The length of the feeder wire supporting arm 2 is smaller than that of the steel tube post 1, provided that the feeder wire support arm 2 itself and the feeder wire support arm 2 and the steel tube post 1 are used. What is necessary is just to determine in consideration of the intensity | strength with respect to external force, such as wind pressure and gravity, of a joining part. The feeder wire k is suspended from the feeder wire erection portion 9 via the insulator g in the same structure as the conventional one. Although not shown, a plurality of feeder wires supporting arms 2 may be arranged vertically to suspend a plurality of feeder wires.

FIGS. 4 to 6 show another example of a joint structure between the feeder wire supporting arm 2 and the steel pipe column 1. FIG. Note that the same components as those in the previous embodiment are denoted by the same reference numerals,
The description is omitted.

In this embodiment, as shown in FIG. 5, a pair of U-shaped and inverted U-shaped support plates 101, 101 are fixed to the steel pipe column 1 near the upper end by welding or the like. That is, the support plate
Reference numeral 101 denotes a support plate main body 101a extending in a vertical direction,
And inverted U-shape with upper and lower reinforcing portions 101b
Make The end t of the support plate main body 101a is outside the steel pipe column 1.
It is fixed to the periphery by welding or the like. The reinforcing portion 101b is supported
Between the plate body 101a and the outer periphery of the steel pipe column 1 near the upper end.
The support plate body 101a.
Eggplant On the other hand, a pair of upper and lower fixing plates 102, 102 are fixed to the base end of the feeder wire supporting arm 2 by welding or the like. Then, the support plate 101 and the fixing plate 102 are combined and fixed by bolts 103 and nuts 104. The hole 105 of the reinforcing portion 101b shown in FIG.
A rope or the like can be passed through like the reinforcing member 5 of the previous embodiment. As described above, the joining structure between the feeder wire supporting arm 2 and the steel pipe column 1 can be appropriately changed and implemented.

[0015]

As described above, the invention of the present application requires less strength against external forces such as wind pressure as compared with the conventional case where the entire height is secured by pillars, and is economically advantageous accordingly. Thus, it is possible to provide a feeder wire support structure using a simple steel pipe column. Moreover, the length of the steel pipe post can be made shorter than that of the conventional one, and a feeder wire supporting structure using the steel pipe post which is preferable from the viewpoint of landscape protection can be provided. In addition, while providing these advantages,
It can reliably support the holding arm, and can be used for maintenance and inspection.
An electric wire support structure that can improve workability
It is. Moreover , by using a curved steel pipe for the feeder wire supporting arm as in the embodiment, it is possible to provide a feeder wire support structure using steel pipe pillars having more excellent aesthetic feeling.

[Brief description of the drawings]

FIG. 1 is a front view of a feeder wire support structure according to an embodiment of the present invention.

FIG. 2 is a side view of the main part.

FIG. 3 is a sectional view taken along line III-III of FIG. 1;

FIG. 4 is a front view of a feeder wire support structure according to another embodiment of the present invention.

FIG. 5 is a side view of the main part.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Steel pipe pillar 2 ... Feeding wire support arm 9 ... Feeding wire erection part 4 ... Support plate 5 ... Reinforcement member 101 ... Support plate 101a ... Support plate body 101b ... Reinforcing part k ... Feeding wire g ... Insulator t ... Support plate body End of

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 62-88044 (JP, U) Japanese Utility Model Hei 2-23668 (JP, U) Japanese Utility Model Utility Model 4-88325 (JP, U) Japanese Utility Model Sho 52- 52099 (JP, U) JP-A 55-156514 (JP, U) JP-A 2-68623 (JP, U) JP-A 55-10173 (JP, Y2) JP-A 57-3858 (JP, Y2)

Claims (1)

(57) [Scope of request for utility model registration] A steel pipe column (1) and an electric wire support arm (2) narrower than the steel pipe column (1), and the base end of the electric wire support arm (2) is a steel pipe column (1). Is fixed to the upper end of the feeder wire (k).
Together with a feeder-installing portion for supporting the insulator (g) suspending the (9), the electrical-wire support structure can by tubular columns that are coordinated to above the upper end of the steel tube column (1)
In this case, the support plate bodies (4, 4, 101a, 101
a) is vertically arranged on the outer periphery near the upper end of the steel pipe column (1).
The support plate body (4, 4, 101a, 10
The end (t) of 1a) and the outer periphery near the upper end of the steel pipe column (1)
Fixed between the support plate bodies (4, 4, 101a, 101a).
The base end of the feeder wire support arm (2) is fixed in the aligned state
The support plate body (4, 4, 101a, 101a)
Reinforcing part (5, 101b) between the outer periphery near the upper end of (1)
And the reinforcing portion (5, 101b)
Work rope insertion part (5a, 105) formed
Feeding wire support structure with steel pipe columns.