JPH08318992A - Device for fastening container for railway freight car - Google Patents

Abstract

PURPOSE: To simplify the structure and manipulation of a device for fastening a container loaded on a railroad freight car. CONSTITUTION: A projection 7 composed of a basal part 8 and a head 9 rotating relative to the basal part 8 is provided vertically movably, in a case body 2 installed under the floor of a freight car. The projection 7 is protruded upward from the floor of the car and the head 9 is fixed to the hole of a corner metal tool attached to the lower part of the container. In a device for fastening a container to the car in this way, a shaft 10 is provided to vertically move the projection 7 and rotate the head 9 and a lever 14 is protruded from the shaft 10. The projection 7 is vertically moved and the head 9 is rotated by manipulating only one lever 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway vehicle container tightening device for fixing a container for carrying luggage to the floor of a vehicle.

[0002]

2. Description of the Related Art A container is a container that can be transshipped between a freight car having a flat floor and a railroad freight car. Since the product is loaded on a flat floor, it is necessary to provide a tightening device to prevent the container from falling due to vibration during traveling. There are various tightening devices for this purpose,
Examples thereof include those described in Japanese Utility Model Publication No. 64-5629 and Japanese Utility Model Publication No. 3-43904. Both of these publications disclose an improved structure with respect to a base plate provided with a protrusion that engages with a hole of a corner fitting of a container, which is provided on a side portion of a vehicle body so as to be capable of undulating.

In this type of container tightening device, when a container is tightened, the base plate hanging down to the side of the vehicle body must be raised on the floor of the vehicle body, which is labor intensive for workers. There's a problem. In view of this, there has been devised a structure in which a protrusion that engages with a hole in a corner fitting of a container is provided on the floor of a vehicle body so that the protrusion can be moved up and down, and it has been widely used worldwide as an ISO standard product.

With reference to FIG. 2, an essential part of this type of container tightening device 1 will be described. Reference numeral 2 denotes a box, which is closely attached to the lower surface of the floor 3 of the freight car. The box body 2 is formed by a main body 4 having an open front portion and a front plate 5 (see FIG. 3) that closes the opening portion of the main body 4. The floor 3 is provided with a rectangular hole 6 having a long side in the longitudinal direction of the vehicle body.
The projection 7 of the container tightening device 1 is adapted to project from a hole (not shown) in the upper part of the box body 2. Protrusion 7
Is a rectangular base 8 that moves up and down but does not rotate, and a base 8
It is composed of a chevron-shaped head 9 which is located at the upper part of the table and which moves up and down integrally with the base 8 and which is rotated 90 degrees by pulling a lever 14 described later, as shown in FIG. The bottom surface of the head portion 9 has the same shape as the top surface of the base portion 8.

A stepped shaft 10 having a small upper portion is vertically provided inside the box body 2, and is supported by a support mechanism (not shown) so as to be vertically movable and rotatable by 90 degrees.
A cylindrical connecting rod 11 is arranged on the side of the box body 2 and is rotatably supported by a bearing (not shown). A plate body 12 is attached to the connecting rod 11 toward the inside of the box body 2, and the tip of the plate body 12 faces the lower end of the shaft 10. A lever 13 is attached to the tip of the connecting rod 11. In the illustrated state, rotate the lever 13 in the direction of arrow A to rotate the shaft 1
It is a state where 0 is raised. When the lever 13 is turned in the direction of arrow B, the shaft 10 descends by its own weight.

A lever 14 is attached to an intermediate portion of the shaft 10 toward the outside of the box body 2. This lever 14
When the head portion 9 of the protrusion 7 is directed in the same direction as the base portion 8 as shown in the drawing, the front end faces the front-back direction of the vehicle body (not shown), and the tip end of the elongated hole 15 is provided in the main body 4 of the box body 2. It is designed to project outward. The elongated hole 15 has a vertically extending portion at this position, and has a horizontally extending portion at the position of the front plate 5 so that the overall shape is L-shaped. By pulling the lever 14 90 degrees from the position shown in FIG. 2 in the direction of arrow C, the head 9 of the projection 7 is oriented so as to intersect the base 8. If the lever 14 is pushed in the direction of arrow D, it will return to its original position.

The connecting rod 11 passes through a lower portion of the floor 3 of the vehicle body and faces a container tightening device (not shown) provided on the other side of the vehicle body. This container tightening device on the other side is symmetrically manufactured with the same structure as the one shown in the drawing, and the shaft 10 rises when the lever 13 is turned in the direction of arrow A. The rotation of the shaft 10 is performed by pulling a lever 14 attached to the shaft 10.

The usage method will be described. When the container (not shown) is not loaded on the vehicle body or when the containers having different lengths are loaded, the protrusion 7 is prevented from protruding from the floor 3. For this purpose, the lever 13 connects the connecting rod 11
To rotate the board 12 in the direction of arrow B to turn the plate 12 downward,
The protrusion 7 is allowed to descend together with the shaft 10 by its own weight. When loading containers on the vehicle body, the lever 13 rotates the connecting rod 11 in the direction of arrow A to lift the shaft 10 by the plate body 12. As the shaft 10 rises, the protrusion 7 projects above the floor 3 of the vehicle body.

In this state, a container (not shown) is moved above the floor 3 by a forklift or the like, and lowered so that the holes of the corner fittings fit above the protrusions 7. When the projection 7 is fitted into the hole of the corner fitting, pull the lever 14 that has been facing sideways to the front side (the direction of arrow C) and pull the shaft 10 to 9
Rotate 0 degrees. Then, the head 9 of the projection 7 rotates together with the shaft 10 as shown in FIG. 4 so as to intersect with the base portion 8. Therefore, the corner fitting is tightened at the portion of the head portion 9 protruding from the base portion 8. In order to prevent the rotation of the head 9 from being hindered, the height of the base 8 is slightly larger than the thickness of the corner fitting of the container.

When the container is unloaded from the vehicle body, the lever 14 is turned in the direction of arrow D to return it to its original position. Then, the head portion 9 of the protrusion 7 rotates 90 degrees together with the shaft 10 to rotate the base portion 8.
Since it faces in the same direction as shown in FIG. 2 and is in the state shown in FIG. 2, the tightened state with the corner fitting can be released. If you raise the container there, you can move it elsewhere. Since the head portion 9 of the protrusion 7 is separated from the corner fitting and faces the same direction as the base portion 8, the protrusion 7
A downward force due to its own weight acts on the shaft 10 and the shaft 7
Is retracted from the floor 3 surface.

The above-described operation is similarly performed for the container tightening device of the same structure provided on the other side of the floor 3 of the vehicle body. That is, since the tip end (not shown) of the connecting rod 11 passes through the lower portion of the floor 3 of the vehicle body and is coupled to the container tightening device provided on the other side of the vehicle body, the protrusion 7 is moved up and down by the rotation of the connecting rod 11. be able to. However, in order to rotate the head 9 of the projection 7 together with the shaft 10, it is necessary to operate the lever 14 of the container tightening device 1.

[0012]

In the container tightening device described above, since the protrusions 7 of the tightening devices provided on both sides of the vehicle body are simultaneously moved up and down, the movement of the lever 13 on one side is made opposite to that of the vehicle body. A mechanism for guiding to the side is required. This mechanism generally uses the connecting rod 11 arranged on the floor 3 of the vehicle body as in the above-mentioned structure.

For this reason, a bearing mechanism is provided so that the connecting rod 11 can be smoothly rotated, and the bearing mechanism is lubricated so as to endure long-term use and not always give a friction loss to the movement of the connecting rod 11. Etc., maintenance is required. Further, in order to carry a heavy cargo, the connecting rod 11 may be bent together with the beam of the vehicle body. When such bending occurs, the lever 13 operated on one side of the vehicle body
In some cases, the operating power of was too large.

Further, the projection 7 is formed by a base portion 8 which does not rotate and a head portion 9 which rotates with respect to the base portion 8, and a part of the head portion 9 in the state where the projection 7 is inserted into the hole of the corner fitting. In order to rotate the lever 90 degrees to engage with the hole of the corner fitting, a lever 13 for rotating the head 9 of the protrusion 7 is necessary in addition to the lever 13 for rotating the connecting rod 11. In addition to the large number, there is a problem that the container cannot be tightened unless both levers 13 and 14 are operated, which complicates the work.

By the way, when the container is actually loaded on the vehicle body, since the lever 14 is operated and the safety confirmation work of other parts is also performed, the worker does not go to only one side of the vehicle. For this reason, even if the lifting operation of the protrusion 7 is performed from both the left and right sides of the vehicle body, it is practical and preferable to have a simpler structure. The present invention has been made in view of this point.

[0016]

As a means for solving the above-mentioned problems, the present invention provides a box body attached to the lower part of the floor of a vehicle body with a projection consisting of a base and a head which rotates with respect to the base. In a container tightening device for a rail vehicle, the container is tightened up and down, the protrusion is projected from the floor, and the head is engaged with a hole of a corner fitting provided in the lower part of the container to tighten the container on the vehicle body. A shaft for raising and lowering the protrusion and rotating the head is provided, and a lever is provided so as to project from the shaft.

[0017]

With the above arrangement, the protrusion projects from the floor of the vehicle body by grasping the lever projecting from the shaft and lifting the shaft upward. In this state, the container lifted by a forklift or the like is lowered so that the protrusions enter the holes of the corner fittings. Next, when the lever is rotated by 90 degrees, the head of the protrusion rotates to engage the corner fitting. The container is now fastened to the car body. When you release the tightening
Rotate the lever 90 degrees in the opposite direction to release the engagement with the corner fitting. Then, if you push the lever downward, the protrusion will retract to the floor, so you can carry out the container.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. 1 having the same functions as those in FIG.
Since the entire structure of the container tightening device 1 is housed inside the box body 2, a part of the front plate 5 of the box body 2 is cut away for convenience sake. Also in this container tightening device 1,
Regarding the point that the shaft 10 is supported by the box body 2 so as to be able to move up and down and rotate 90 degrees, that the lever 14 is attached to the shaft 10, and the orientation of the lever 14 and the head 9 of the protrusion 7 , As in FIG. The connecting rod 11 shown in FIG. 2 is not provided and therefore the plate 12 is also absent.

Reference numeral 16 is a stopper plate. The stopper plate 16 is a substantially L-shaped member whose front side is bent downward, and holds the shaft 10 in a raised position as shown in the drawing. An operator takes in and out the stopper plate 16.

In the container tightening device thus constructed, when the container is not loaded on the vehicle body or when the containers having different lengths are loaded, the stopper plate 16 is pulled to be removed from the bottom of the shaft 10. Then, the shaft 10 descends due to its own weight. The shaft 10 can descend in this way because the head 9 of the protrusion 7 faces in the same direction as the base 8.
It is when both can fit in the hole 4 of the floor 3 without trouble.

When loading containers, the lever 14
Then, the shaft 10 is raised and the projection 7 is projected from the floor 3. When the projection 7 is projected, the hole of the corner fitting of the container is aligned with the projection 7. Next, the lever 14 is pulled in the direction of arrow C to rotate the head portion 9 of the protrusion 7 by 90 degrees with respect to the base portion 8. Then, the head 9 is similar to that shown in FIG.
Since it will be in the direction intersecting with, the base 8 of the head 9 at that time
The protruding part of the container engages with the hole of the corner fitting of the container to tighten the container.

When the container is unloaded from the vehicle body, the lever 14 is turned in the direction of arrow D to return it to its original position. Then, the head portion 9 of the protrusion 7 rotates 90 degrees together with the shaft 10 to rotate the base portion 8.
Since it is oriented in the same direction as the state shown in FIG. 1, the tightened state with the corner fitting can be released. If you raise the container there, you can move it elsewhere. Since the head portion 9 of the protrusion 7 is separated from the corner fitting and faces the same direction as the base portion 8, the protrusion 7
And downward force due to its own weight acts on the shaft 10,
When the stopper plate 16 is pulled, the shaft 10 descends and the projection 7 is placed on the floor 3
You will be able to retract from the side.

[0023]

The present invention is a container tightening device for a railway vehicle constructed as described above, which does not require a connecting mechanism for both sides of the vehicle body as in the conventional device, and therefore, the connecting rod and The parts for connecting left and right are not required, and it is lightweight, and workability and maintenance at the time of production are simplified. The operation of raising and lowering the protrusion can be performed only by raising and lowering the lever, and the tightening state can be achieved by rotating the lever 90 degrees, which is simple. By protruding the lever to the side of the car body with the container tightened,
It is easy to confirm the tightening.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention by cutting a part of a box body.

FIG. 2 is a perspective view showing a main part of a conventional container tightening device.

FIG. 3 is a perspective view showing the shapes of elongated holes provided in the main body of the box body and the front plate.

FIG. 4 is a perspective view showing a state in which the head of the protrusion of FIG. 2 is rotated.

[Explanation of symbols]

 1 Container tightening device 2 Box 3 Floor 6 Hole 7 Protrusion 8 Base 9 Head 10 Shaft 14 Lever 15 Long hole 16 Stopper plate

Claims (1)

[Claims] 1. A box body attached to a lower part of a floor of a vehicle body,
A protrusion including a base and a head that rotates with respect to the base is provided so as to be able to move up and down, the protrusion is projected from the floor, and the head is engaged with a hole of a corner fitting provided in the lower portion of the container. A railway vehicle container tightening device for tightening a container to a vehicle body, wherein a shaft for raising and lowering the protrusion and rotating the head is provided, and a lever is provided on the shaft to project the lever. Container tightening device.