JP2802141B2 - Trailer loading device and loading method on railway wagon - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a trailer loading device and a loading method for a railway wagon when a trailer is transported by rail by a so-called piggyback method.

[Conventional technology]

Conventionally, there has been known a so-called piggyback method in which a trailer loaded with cargo is transported on a road pulled by a tractor, and the trailer is loaded on a freight car by rail, so-called piggyback. Various proposals have been made.

[Problems to be solved by the invention]

However, in the past, the existing trailer was placed directly on the floor of a freight car, so the center of gravity was raised,
In addition, since the vehicle is mounted floatingly by elastic members such as rubber tires and suspensions of wheels, the trailer may be largely shaken by the vibration of a freight car during transportation, and there is a problem that stability is lacking. Also, if the trailer is placed on the floor of the wagon as it is as described above, the height from the ground will be high.Therefore, there is a problem that a large trailer cannot be loaded under a predetermined height limit. there were.

The present invention has been proposed in view of the above problems, and has a trailer that can be easily and quickly loaded on a wagon, and a trailer that is stable and has a larger trailer within a predetermined height limit. It is an object of the present invention to provide a trailer loading device and a loading method capable of loading a vehicle.

[Means for solving the problem]

In order to achieve the above object, the present invention has the following configuration.

That is, the apparatus for loading a trailer on a railway wagon according to the present invention includes hydraulic jacks for lifting and lowering the trailer near four corners on the lower surface of the body of the trailer, and inserting wheels of the trailer on the floor of the railway wagon on which the trailer is loaded. And an openable and closable opening is provided.

Further, the trailer loading method according to the present invention, when loading the trailer on the railway wagon, when moving the trailer on the wagon, close the opening to allow the movement of the trailer, on the wagon When the trailer is mounted and fixed, the trailer is raised and lowered by the hydraulic jack, and at the same time, the opening is opened and the wheel of the trailer is inserted into the opening, and the bottom surface of the body of the trailer is directly placed on the upper surface of the wagon. It is characterized in that it is fixed.

(Operation)

According to the apparatus and method for loading a trailer on a railway wagon constructed as described above, the trailer can be easily and quickly loaded on the railway wagon by the hydraulic jacks provided near the four corners on the lower surface of the body of the trailer. In addition to this, the trailer wheels can be inserted into openings provided on the floor of the railway wagon, thereby stably loading the wheels.

〔Example〕

Hereinafter, the present invention will be specifically described based on an embodiment shown in the drawings.

FIG. 1 shows an example of a trailer for loading a freight car according to the present invention and an apparatus for loading the trailer. In the case of FIG. 1, two trailers 1.1 are loaded on one open wagon 2 backward. An example is shown below.

The trailer 1 in the illustrated example is provided with hydraulic jacks 11 as lifting means at four corners of a lower surface (bottom surface) of a body 10, and the lower surface of the body 10 has a width direction central portion 10a lower than both side portions. Have been. 12 is wheels, 13 is trailer 1
2 shows a kingpin for connection with the tractor 3 for pulling the vehicle.

The wagon 2 on which the trailer 1 is loaded is a flat-top frame.
The upper surface (floor surface) of the frame 20 is formed so that the central portion 20a in the width direction is high and the side portions 20b are lower than that as shown in FIGS. It is configured to move the wheels 12 of the trailer 1 on both sides 20b and 20b to perform loading and unloading.

When the trailer 1 is placed at a predetermined position on the wagon 2 as shown in FIG. 1, an opening for inserting the wheel 12 of the trailer 1 on the floor of the wagon 2 corresponding to the position where the wheel 12 of the trailer 1 stops. An opening 22 is provided with a cover plate 23 that can be opened and closed. In the embodiment, the lid plate 23 is configured to move in the width direction of the wagon along a pair of guides 24 and open and close as shown in FIGS.

When the trailer 1 is mounted on the wagon 2 in the above configuration, for example, the riding guide plate 4 is bridged over the end of the wagon 2 as shown by a chain line in FIG. It is retracted from the position shown by the chain line 1 'in the direction of the arrow a and placed on the wagon 2 as shown by the solid line in the figure.
The wheel 12 of the trailer 1 is located on the lid plate 23.

In this state, the four hydraulic jacks 11 are extended to hold the trailer 1 on the freight wagon 2, the engagement between the kingpig 13 and the coupling (not shown) on the tractor side is released, and the tractor 3 is lowered from the freight wagon and separated. 3 and while the wheels 12 of the trailer 1 are lifted off the lid plate 23 as shown in FIG. 3, the lid plate 23 is moved from both sides in the width direction of the wagon to the center as shown by the chain line in FIG. To open the opening 22. Next, the four jacks 11 are simultaneously contracted to lower the trailer 1, and the wheels 12 are inserted into the openings 22 as shown in FIG. 5, and the central protruding portion 10a of the bottom surface of the body of the trailer 1 When the jack 11 is placed on the portion 20a, the contraction of the jack 11 is stopped. Thereby, the trailer 1 is stably mounted and fixed on the wagon 2 without the intervention of elastic members such as rubber tires and suspensions of the wheels 12.

The trailer on the left side in FIG. 1 is also placed on the wagon from the left side of the wagon in the same manner as described above. Then, when the wagon 2 is connected to a locomotive (not shown) and transported to the destination, the tractor is connected to the trailer in the reverse order to drop off the wagon and transported on the road to a predetermined doorway as it is.

In general, side bumpers are located at the bottom of both sides of the trailer.
If the trailer 1 is mounted on the wagon 2 and the lower surface of the side bumper 14 is brought into contact with the upper surface of the wagon as shown in FIG. In this case, the trailer 1 can be prevented from swaying.

〔The invention's effect〕

As described above, according to the apparatus and method for loading a trailer on a railway wagon according to the present invention, the trailer 1 can be easily, quickly, and stably loaded on the railway wagon 2, and particularly the floor surface of the wagon 2. An openable / closable opening 22 for inserting the wheel 12 of the trailer 1 is provided. When the trailer is loaded, the wheel 12 of the trailer 1 is inserted into the opening 22 and the body bottom surface 10a of the trailer is directly mounted on the frame upper surface 20a of the freight car 2. The trailer can be stowed lower and more stably, and a larger trailer can be placed on the wagon within the limit of the allowable height of the wagon as much as the trailer can be loaded as described above. This makes it possible to increase the load of freight on a freight car, thereby improving the transportation efficiency.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a device for loading a trailer on a railway wagon according to the present invention, FIG. 2 is a plan view of a part of the wagon, FIG.
The figure is a partially cutaway side view, FIG. 4 is a cross-sectional front view,
FIG. 5 is the same view as above with a trailer loaded. 1 is a trailer, 2 is a wagon, 11 is a lifting means (hydraulic jack), 12 is a wheel, 22 is an opening, and 23 is a cover plate.

Claims (2)

(57) [Claims] 1. A hydraulic jack for raising and lowering a trailer is provided near four corners on a lower surface of a body of a trailer, and an opening and closing opening for inserting a wheel of the trailer is provided on a floor of a railway wagon on which the trailer is loaded. A trailer loading device for rail wagons. 2. When the trailer according to claim 1 is loaded on the railway wagon, the opening is closed by allowing the trailer to move when the trailer is moved on the railway wagon. When the trailer is placed and fixed on the wagon, the trailer is lifted and lowered by the hydraulic jack, and at the same time, the opening is opened and the wheel of the trailer is inserted into the opening, and the bottom surface of the body of the trailer is placed on the wagon. A method for loading a trailer onto a railway wagon, wherein the trailer is directly mounted and fixed on an upper surface.