JP2000016124A - Utility pole/beam member connecting structure of supporter for electric car tramway - Google Patents

Abstract

PROBLEM TO BE SOLVED: To offer a connecting structure which connects a utility pole with a beam member and is used in a supporter for an electric car tramway whereby it is possible to assemble the tramway supporter quickly. SOLUTION: A connecting structure is to connect a utility pole 1 with a beam member 2 in a supporter G for an electric car tramway consisting of an extruded shape material of aluminum alloy and is equipped with a connecting tool 10 installed on the top of the utility pole 1 and a connecting means for connecting the end of the beam member 2 to the top surface of the connecting tool 10. The beam member 2 is shaped in an arc of circle and configured so that the inclining angle of the end of the beam member 2 with respect to a horizontal plane becomes θ when it is connected with the utility pole 1 and the inclining angle of the top surface of the connecting tool corresponds to θwhen the connecting tool is mounted on the utility pole 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure between a power pole and a beam member in a train line support. In particular, it relates to connecting a beam made of extruded aluminum alloy to a utility pole.

[0002]

2. Description of the Related Art Conventionally, steel pipes have been used so that the outer diameter can be reduced and the landscape can be improved. However, as shown in FIG. The flanges were welded, and the flanges were bolted together and fixed.

[0003]

However, since electric poles and beam members made of steel pipes are heavy, a heavy machine is required for connecting bend steel pipes to both ends of the beam members, and the operation time is long. If the installation position of the utility pole, the verticality, the height, the rotation with respect to the axis, and the shape of the beam material were not extremely accurate, it took time to align the bolt holes of the flange. For this reason, it was difficult to finish the work between the last train and the first train. Also, it is difficult to bend the steel pipe. In addition, aluminum alloys have a large decrease in strength due to welding,
It is not appropriate to directly weld and connect a power pole or beam material made of an aluminum alloy, or to weld a flange to these and join them at the flange portion. In addition, since the connection by the flange is not aesthetic, it is necessary to connect the electric pole and the beam material without impairing the appearance. Accordingly, an object of the present invention is to provide a connection structure between a power pole and a beam material in a train line support capable of overcoming the conventional disadvantages and quickly assembling the train line support.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a connecting structure between an electric pole and a beam member in a train line support made of an extruded aluminum alloy material, comprising: a connecting member installed at an upper end of the electric pole; Connecting means for connecting an end of the beam member to an upper surface of the connecting tool. According to this, since the beam member is light in weight, it is easy to handle, and the work can be performed quickly, and the beam member can be connected to the utility pole reliably and with good appearance.

Further, according to the present invention, when the beam member is an arc-shaped beam member forming an arc, and the arc-shaped beam member is connected to the electric pole, an end of the arc-shaped beam member is positioned with respect to a horizontal plane. The inclination angle is θ, and the inclination angle of the upper surface of the connection tool corresponds to the inclination angle θ when the connection tool is installed on the utility pole. Item 2). According to this, it is possible to provide a train line support having a better appearance and an excellent landscape.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment First, a first embodiment of the present invention will be described in detail. FIG. 1 is a diagram showing a train line support made of a utility pole and a beam material according to the first embodiment of the present invention. FIG. 2 is a diagram showing an example of a connection form between a power pole and a beam member according to the first embodiment of the present invention. here,
(A) shows the connection according to the first variation, (B) shows the connection according to the second variation, and (C) shows the connection according to the third variation.

In FIGS. 1 and 2, reference symbol G denotes a train line support, which is composed of a power pole 1, a beam member 2, and a connector 10 for connecting the power pole 1 and the beam member 2. Note that the train line is an electric wire line provided along a line to supply electricity from a substation to an electric vehicle by a current collector represented by a pantograph (corresponding to a so-called overhead wire).

The beam member 2 serves as a beam extending between the electric poles 1 and not shown in the drawing, but the beam member 2 is provided with an overhead line via a lower bundle. Beam material 2
May have a circular, elliptical, or square shape.

The connecting member 10 is used to connect the electric pole 1 and the beam member 2, and connects the beam member 2 to the means for installing the connecting member 10 at the tip of the electric pole 1. What is necessary is just to have the means for it.

Specific examples of means for installing the connecting device 10 at the tip of the utility pole 1 include blind caps, blind plugs and blinds as means for closing the terminal openings of various pipes such as water pipes and gas pipes. Means such as those used for plates (blind flanges) are included.

When the main body of the connector 10 is a blind cap or a blind plug, the tip of the utility pole 1 is not simply screwed to the utility pole 1 so that the connector 10 does not fall. It may be an installation means that is covered with or inserted into the camera. When the main body of the connection tool 10 is like a blind plate, an installation means for fixing to the utility pole 1 by welding or the like is used. In other words, the main body of the connector 10 has a shape such as a blind cap having a concave cross section, a blind plug having a convex cross section, or a plate-shaped blind plate, depending on the means of installation on the utility pole 1. Incidentally, there are three types of connecting devices 10 (10a, 10a, 10a) shown in FIG.
(b) and (10c) are all blind plug types having a projecting cross section having a projection 10 'inserted into the opening at the tip of the utility pole 1, but may be other types.

2 (A) to 2 (C) show a means for inserting the projection 10 'of the connector 10 having a convex cross section into the opening at the upper end of the utility pole 1 as it is. Although not shown in FIG.
If a bolt through hole is formed in a portion overlapping with 0 ', a female screw is formed in the protrusion 10', and both are fixed with bolts, the connecting tool 10
Can be reliably installed and fixed to the tip of the utility pole 1.

The means for securely installing and fixing the connecting tool 10 to the upper end of the utility pole 1 is not limited to this. For example, when the utility pole 1 is a circular pipe, a male screw is formed on the connecting tool 10 itself, and the upper end of the utility pole 1 is formed. A female screw is formed on itself,
Various means are conceivable, such as a tight fit between the two.

As means for connecting the beam member 2, for example, there are three variations shown in FIGS. 2A to 2C described below, and these may be used in any combination. Can also. That is, the joining means for the electric pole 1 at one end and the other end of the beam member 2 may be different.

FIG. 2A shows an electric pole 1 of a beam member 2.
The beam member 2 is joined using a U-shaped stopper 15 having a shape corresponding to the pipe diameter of a portion connected to the beam member 2.
Male threads are formed at both ends of the stopper 15, and the flange portion 11 of the main body of the connector 10 (10a) having a convex cross section is formed.
The beam member 2 can be firmly stopped by the nut 16 through the through hole formed in the hole. Further, in FIG. 2A, two U-shaped stoppers 15 are used, but the stoppers 15 are not limited thereto, and a band-shaped stopper integrally formed with the two stoppers 15 is used. The tool 15 may be used. The shape of the stopper 15 may be a U-shape instead of a U-shape.

In FIG. 2B, a groove 14 having a depression is provided in a portion (contact portion) where the beam member 2 and the connector 20 are in contact with each other so that the beam member 2 having a circular cross section can be easily seated. Have been. Then, the beam member 2 and the connector 10 (10b)
Are welded linearly along the length direction of the beam member 2 (the symbol WL indicates a welding line welded linearly). Further, reinforcing ribs 17 are provided by welding at several places, and the connection of the beam member 2 is further ensured. When the cross-sectional shape of the beam member 2 is circular,
If welding is performed without providing the groove 14 in the contact portion 13, the angle Ω between the center of the circle and both the welded portions W and W is narrow, and the joining strength by welding is extremely weak. In order to prevent this, a groove 14 is provided in the contact portion 13,
The angle Ω should be widened. This point figure 2
The connecting tool 10 (10a) in (A) also has a groove 14 in the contact portion 13 with the beam material 2, but the meaning of the groove 14 is more important in the case of FIG. 2 (B). .

In FIG. 2 (C), a projection 18 is provided on the upper surface 12 of the connector 10 (10c) in order to make the seating better and widen the angle Ω than that of FIG. 2 (B). 14 is wider and deeper. In this case, the angle Ω can be easily set to 60 degrees or more, and the beam member 2 can be securely joined only by welding without particularly providing the reinforcing ribs 17 as shown in FIG. Can be.

Second Embodiment Next, a second embodiment of the present invention will be described in detail. The description of the parts common to the first embodiment is omitted or simplified.

FIG. 3 is a view showing a train line support made of a utility pole and a beam member according to a second embodiment of the present invention. FIG. 4 is a diagram showing an example of a connection form between a utility pole and a beam member according to the second embodiment of the present invention.

In this embodiment, the beam member 2 is an arc-shaped beam member 2 'in which an arc is drawn as shown in FIG. Such an arc-shaped beam member 2 ′ is connected to the connector 10 of the first embodiment.
Can't connect securely. Therefore, the angle θ corresponding to the angle θ (FIG. 3) formed by the vicinity of the end of the arc-shaped beam member 2 ′ with the horizontal plane so that the arc-shaped beam member can be reliably connected.
'On the upper surface 22 of the connector 20 (FIG. 4). Further, it is preferable to form a groove 23 on the upper surface 22 according to the shape of the lower surface of the arc-shaped beam member 2 ′. According to this, even the arc-shaped beam member 2 ′ can be firmly connected to the utility pole 1, and the viewability of the train line support G is further improved. Note that there are several types of connection methods as in the first embodiment, but FIGS. 3 and 4 show a U-shaped stopper 25 and a nut 2.
6 is shown.

[0021]

As described above, according to the present invention, since each member is made of a lightweight aluminum alloy, the installation time and dismantling time of the train line support G can be greatly reduced. In addition, the structure is simple and the landscape is high due to the aluminum alloy, the fixing means is also inexpensive,
Furthermore, the connection tool doubles as a power pole lid. In addition, since aluminum alloy has high corrosion resistance, painting is unnecessary and maintenance is easy, so that it can contribute to safe train operation.

[Brief description of the drawings]

FIG. 1 is a view showing a train line support made of a utility pole and a beam material according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a connection form between a utility pole and a beam member according to the first embodiment of the present invention. (A)
Indicates a connection according to the first variation, (B) indicates a connection according to the second variation, and (C) indicates a connection according to the third variation.

FIG. 3 is a view showing a train line support made of a utility pole and a beam material according to a second embodiment of the present invention.

FIG. 4 is a diagram illustrating an example of a connection configuration between a utility pole and a beam member according to a second embodiment of the present invention.

FIG. 5 is a view showing a train line support and the like according to a conventional example. (A) shows a train line support, and (b) shows a flange joint.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Power pole 2 Beam material (beam) 2 'Arc-shaped beam material 10 Connector 10a Connector (using a stopper) 10b Connector (using welding and a rib) 10c Connector (only by welding) 10' Projection Part 11 Flange 12 Upper surface 13 Abutment part 14 Groove 15 Stopper 16 Nut 17 Rib 18 Projection 20 Connector (with inclined angle) 20 ′ Projection 21 Flange 22 Upper surface 23 Groove 25 Stopper 26 Nut 51 Electric pole 52 Beam Material 53 Vent pipe 54 Flange G Train line support W Welding part WL Welding line θ Inclination angle (inclination angle at end of arc-shaped beam material 2 ′) θ ′ Inclination angle (inclination angle of upper surface 22 of connecting fixture) Ω angle (Angle between both welding parts W)

Claims (2)

[Claims] 1. A connection structure between a power pole and a beam material in a train line support made of an extruded aluminum alloy material, comprising: a connection tool installed at an upper end of the power pole; and a beam material on an upper surface of the connection tool. And a connection means for connecting the ends of the electric poles and the beam material in the train line support. 2. The beam member is an arc-shaped beam member forming an arc, and when the beam member is connected to the telephone pole, an inclination angle of an end of the arc-shaped beam member with respect to a horizontal plane is θ. The inclination angle of the upper surface of the connection tool corresponds to the inclination angle θ when the connection tool is installed on the electric pole, The claim 1, wherein: Connection structure between electric poles and beam material in the railway track support.