JP4062381B2 - Connection structure between utility poles and beam material on train track supports - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection structure between a utility pole and a beam member in a train track support. In particular, the present invention relates to connecting a beam material made of an extruded shape of an aluminum alloy to a utility pole.
[0002]
[Prior art]
Conventionally, steel pipes are being used so that the outer diameter can be reduced and the scenery is good, but the connection between the metal power pole and the beam material is performed by welding a flange to each of the power pole and beam material as shown in FIG. The flanges were fixed with bolts.
[0003]
[Problems to be solved by the invention]
However, since electric poles and beam members made of steel pipes are heavy, a heavy machine is required to connect the bend steel pipes to both ends of the beam members, and the work time is long. In addition, if the installation position, verticality, height, rotation with respect to the axis, and the shape of the beam material side were not very accurate, it took time to align the holes for bolting the flange. For this reason, it was difficult to finish the work between the last train and the first train. Moreover, the process which bends a steel pipe is also difficult.
Furthermore, the strength of the aluminum alloy is greatly reduced by welding, and it is not appropriate to directly connect the power pole or beam material made of the aluminum alloy by welding, or to weld the flange to the flange portion.
Further, since the connection by the flange is not aesthetic, it is necessary to connect the electric pole and the beam material without impairing the aesthetic appearance.
Therefore, an object of the present invention is to provide a connection structure between a power pole and a beam member in a train line support that can overcome such conventional drawbacks and can quickly assemble the train line support.
[0004]
[Means for Solving the Problems]
The present invention provides a connection structure between the utility pole and the beam member in the railroad track supporting structure made of an aluminum alloy extruded shape, is installed on the upper end of the electric pole, a connector serving as a lid of the electric pole, before Symbol beam member And connecting means for connecting the end of the connector to the upper surface of the connector. According to this, since a beam material etc. are lightweight, handling is easy, it can work quickly, and it can connect a beam material to a utility pole reliably and attractively.
[0005]
Further, the present invention is an arc-shaped beam material in which the beam material forms an arc, and when the arc-shaped beam material is connected to the utility pole, an inclination angle of the end portion of the arc-shaped beam material with respect to a horizontal plane is increased. is intended to be a theta, characterized in that said connecting device inclination angle of the upper surface of the fitting when installed on the utility pole is made to those corresponding to the inclination angle theta. According to this, it is possible to provide a train track support that is more attractive and has a good landscape.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Reference Embodiment First, the reference embodiment will be described in detail. FIG. 1 is a diagram showing a train track support made of a utility pole and a beam material in a reference embodiment. FIG. 2 is a diagram illustrating an example of a connection form between a utility pole and a beam material in the reference embodiment. Here, (A) shows connection by the first variation, (B) shows connection by the second variation, and (C) shows connection by the third variation.
[0007]
In FIG. 1 and FIG. 2, the code | symbol G shows a railroad track support, and consists of the utility pole 1, the beam material 2, and the connection tool 10 which connects the utility pole 1 and the beam material 2. FIG.
In addition, a train line means the electric wire path provided along the track | line in order to supply the electricity from a substation to an electric vehicle with the current collector represented by the pantograph (it corresponds to what is called an overhead line).
[0008]
The beam material 2 serves as a beam passed between the utility pole 1 and the utility pole 1 and is not shown in the drawing, but the beam material 2 is provided with an overhead line via a lower bundle.
The cross-sectional shape of the beam material 2 may be a circle, an ellipse, a square, or the like.
[0009]
The connection tool 10 is used to connect the power pole 1 and the beam material 2, which means that the connection tool 10 is installed at the tip of the power pole 1 and means for connecting the beam material 2. What is necessary is just to have.
[0010]
Specific examples of means for installing the connector 10 at the tip of the utility pole 1 include blind caps, blind plugs, blind plates (blinds) as means for closing the end openings of various pipes including water pipes and gas pipes. For example, means used in a flange).
[0011]
When the main body of the connector 10 is like a blind cap or a blind plug, even if it is not firmly screwed onto the utility pole 1, it is simply put on the tip of the utility pole 1 so that the connector 10 does not fall. It may be an installation means that is present or inserted. Moreover, when the main body of the connector 10 is a thing like a blind board, the installation means fixed to the utility pole 1 by welding etc. will be taken.
That is, the main body of the connector 10 has a shape such as a blind cap with a concave cross section, a blind plug with a convex cross section, or a plate-shaped blind plate, depending on the means installed on the utility pole 1. Incidentally, the three variations of the connector 10 (10a, 10b, 10c) shown in FIG. 2 are all of a blind plug type with a convex cross section having a protrusion 10 'inserted into the tip opening of the utility pole 1. However, other types may be used.
[0012]
2 (A) to 2 (C) show a means for inserting and installing the protrusion 10 ′ of the connector 10 having a convex cross section into the opening at the upper end of the utility pole 1, for example, FIG. Although not shown, a bolt through-hole is formed in a portion overlapping the protrusion 10 'near the upper end of the utility pole 1, while a female screw is formed in the protrusion 10' to If it is made to fix by, it can install and fix the connecting tool 10 to the front-end | tip part of the utility pole 1 reliably.
[0013]
The means for securely installing and fixing the connector 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 connector 10 itself, and the upper end of the utility pole 1 is female. Various means are conceivable, such as forming a screw and screwing it, or fitting both together tightly.
[0014]
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. That is, the joining means for the one end and the other end of the beam member 2 may be different.
[0015]
In FIG. 2A, the beam material 2 is joined using a U-shaped stopper 15 having a shape corresponding to the tube diameter of the portion connected to the utility pole 1 of the beam material 2. Male screws are formed at both ends of the stopper 15, and the beam member 2 is firmly secured by the nut 16 through a through-hole opened in the flange portion 11 of the main body of the connector 10 (10 a) having a convex cross section. Can be stopped.
In FIG. 2A, two U-shaped stoppers 15 are used. However, the stoppers 15 are not limited to this, and the belt-like stoppers formed by integrating the two stoppers 15 together. Tool 15 may be sufficient. Further, the shape of the stopper 15 may be U-shaped instead of U-shaped.
[0016]
In FIG. 2B, a groove 14 having a recess is provided at a portion (contact portion) where the beam member 2 and the connection tool 20 abut so that the beam member 2 having a circular cross section can be satisfactorily seated. . Then, two portions where the beam member 2 and the connector 10 (10b) abut are linearly welded along the length direction of the beam member 2 (reference numeral WL indicates a welding line welded in a linear manner). . Further, the ribs 17 for reinforcement are provided by welding at several places, and the connection of the beam material 2 is made more reliable.
In addition, when the cross-sectional shape of the beam member 2 is circular, if the welding is performed without providing the groove 14 in the contact portion 13, the angle Ω formed by the center of the circle and both the welded portions W · W is narrow, The joint strength by welding is extremely weak. In order to prevent this, it is preferable to provide a groove 14 in the contact portion 13 so that the angle Ω is widened. 2 (A) is also provided with a groove 14 in the contact portion 13 with the beam member 2, but the meaning of the groove 14 is that in the case of FIG. 2 (B). More important.
[0017]
In FIG. 2C, the protrusion 18 is provided on the upper surface 12 of the connector 10 (10c) and the groove 14 is further provided in order to make the sitting better than that of FIG. Wide and deep. In this way, the angle Ω can be easily set to 60 degrees or more, and the beam member 2 can be reliably joined only by welding without providing the reinforcing rib 17 as shown in FIG. 2B. Can do.
[0018]
◎ second embodiment will now be described in detail embodiments of the present invention. Note that description of parts common to the reference embodiment is omitted or simplified.
[0019]
Figure 3 is a diagram showing a railroad track supporting structure consisting of a telephone pole and the beam member in this inventions embodiment. Figure 4 is a diagram illustrating an example of a connection form of the utility pole and the beam member in this inventions embodiment.
[0020]
In the present embodiment, as shown in FIG. 3, the beam material 2 is an arc-shaped beam material 2 ′ in which an arc is drawn. Such an arc-shaped beam member 2 ′ cannot be securely connected by the connector 10 of the reference embodiment. Therefore, the upper surface 22 of the connector 20 has an angle θ ′ corresponding to the angle θ (FIG. 3) that the vicinity of the end of the arc-shaped beam material 2 ′ forms with the horizontal plane so that the arc-shaped beam material can be securely connected. (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 material 2 ′. According to this, even if it is circular-arc type beam material 2 ', it can connect to the utility pole 1 firmly, and the scenery property of the train track support G becomes higher. As for the connection method, there are several types of variations as in the case of the reference embodiment. FIGS. 3 and 4 show a case in which a U-shaped stopper 25 and a nut 26 are used.
[0021]
【The invention's effect】
As described above, according to the present invention, each member is made of a lightweight aluminum alloy, so that the installation time and dismantling time of the train track support G can be greatly shortened.
In addition, the structure is simple due to the aluminum alloy, the scenery is high, the fixing means is inexpensive, and the connector also serves as a lid for the utility pole.
In addition, aluminum alloy has high corrosion resistance, so painting is unnecessary and maintenance is easy, which can contribute to safe train operation.
[Brief description of the drawings]
FIG. 1 is a diagram showing a train track support made of a utility pole and a beam material in a reference embodiment.
FIG. 2 is a diagram showing an example of a connection form between a utility pole and a beam material in a reference embodiment. (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.
3 is a diagram showing a railroad track supporting structure consisting of a telephone pole and the beam member in this inventions embodiment.
4 is a diagram showing an example of a connection form of the utility pole and the beam member in this inventions embodiment.
FIG. 5 is a diagram showing a train track support according to a conventional example. (A) shows a train track support, and (b) shows a flange joint.
[Explanation of symbols]
1 Telephone pole 2 Beam material (beam)
2 'Arc beam material 10 Connector 10a Connector (using a stopper)
10b Connector (using welding and ribs)
10c Connector (by welding only)
10 'protrusion 11 flange 12 upper surface 13 contact portion 14 groove 15 stopper 16 nut 17 rib 18 protrusion 20 connector (having an inclination angle)
20 'protrusion 21 flange 22 upper surface 23 groove 25 stopper 26 nut 51 utility pole 52 beam material 53 vent pipe 54 flange G train line support W welded portion WL weld line θ inclination angle (at the end of the arc-shaped beam material 2' Tilt angle)
θ ′ inclination angle (inclination angle of the upper surface 22 of the connector)
Ω angle (angle formed by both welded parts W)

Claims (2)

A connection structure between a power pole and a beam material in a train track support made of an aluminum alloy extruded shape,
A connector that is installed at the upper end of the utility pole and also serves as a lid for the utility pole ;
Ri Na and a connection means for connecting the ends of the beam member on the upper surface of said connecting device,
The beam material is an arc-shaped beam material forming an arc, and when the arc-shaped beam material is connected to the utility pole, an inclination angle of the end of the arc-shaped beam material with respect to a horizontal plane is θ. ,
When the connection tool is installed on the utility pole, the inclination angle of the upper surface of the connection tool corresponds to the inclination angle θ,
The connection structure between the utility pole and the beam material in the railway track support characterized by Grooves are formed on the upper surface of the connector in accordance with the shape of the lower surface of the arc-shaped beam material,
The connection structure of the utility pole and the beam material in the train track support according to claim 1.

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