JPH0123334B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo handling device for a freight vehicle, and particularly to a cargo handling device that enables vertical and horizontal movement of a cargo receiving platform.

In general, most cargo handling devices for freight vehicles have a structure in which a cargo receiving platform is raised and lowered while being held horizontally.

However, since such cargo handling equipment is usually attached to the rear of the cargo box, in order to improve the loading efficiency of the cargo box, it must be carried manually from the receiving platform to the front of the cargo box. In the current situation where long shipping boxes are widespread, a large amount of manpower is required.

In addition, as a device that can raise and lower the loading platform and move it to the front of the loading box, it has been
There is a publication number 962.

However, in the above-mentioned publication, the extension frame 4 is extended, the support legs 7 are extended and grounded, and the rail 5 is connected to the rail 3 until the hoisting platform 10 (corresponding to the loading platform of the present invention) can be raised and lowered. After fixing it in an extended shape, the connecting rod 27 is extended by the operation of the hydraulic cylinder 29, the pulley 26 is extended to the tip of the extension frame 4, and the sprocket 22 is rotated while the hoisting platform 10 is secured, thereby lifting the bogie. 8 onto the extension frame 4 is required, and there is a problem that the lifting platform 10 cannot be easily raised and lowered. Further, the above publication also discloses that the wheels 11,
11 are provided inside the sliding door, and the outer cylinders 12, 12 are also provided inside the wheels 11, 11, so the interval between the outer cylinders 12, 12 is narrow, and the lifting platform 10 is The problem is that it becomes small.

Further, in the above-mentioned publication, since the rails 3, 3 are provided on the loading platform 2 inside the sliding door, there is a problem that the rails 3, 3 get in the way when luggage is placed on both ends of the loading platform 2. The present invention has been made to solve the above-mentioned problems, and embodiments thereof will be described below with reference to the drawings.

Reference numeral 1 denotes a cargo box of a freight car, and a pair of box-shaped guide frames 3, 3 extending in the longitudinal direction of the cargo box 1 are provided above both ends of the floor plate 2 of the cargo box 1. Elongated holes 4, 4 bored in the longitudinal direction of the cargo box 1 are provided on the opposing surfaces, respectively.

Fixed columns 5, 5 are erected on the guide frames 3, 3, and fan doors 6, 6 which can be secured to the fixed columns 5, 5 are hinged so as to be able to rotate upward.

7 is a pair of vertical frames 8, 8 with a horizontal frame 9 at the bottom end of a box-shaped cross section.
The width of the frame 7 is made somewhat smaller than the inner width of the cargo box 1, so that the frame 7 can be moved back and forth within the cargo box 1.

Reference numerals 23 and 23 denote a pair of support devices for supporting the frame body 7, and these support devices 23 and 23 include triangular brackets 10 and 10 fixed perpendicularly in front of the pair of vertical frames 8 and 8; 10,10
A pair of front and rear guide rollers 11 supported by shafts 12 inserted through long holes 4, 4 of the guide frames 3, 3, and capable of rolling within the guide frames 3, 3, The frame body 7 is supported by the pair of support devices 23, 23 so as to be movable in the front-back direction of the cargo box 1.

Reference numerals 13 and 13 indicate lifting members installed in the vertical frames 8 and 8, and the lifting members 13 and 13 are raised and lowered by hydraulic cylinders 14 and 14 installed in the vertical frames 8 and 8, The base of a loading platform 15 is pivotally supported at the lower ends of the lifting members 13, 13.
5 is held horizontally by bending links 16, 16 that span the loading platform 15 and the elevating members 13, 13.

Reference numeral 17 denotes a drive device for horizontally moving the frame body 7 within the cargo box 1. As shown in FIG. An endless wire 20 is stretched around a fixed pulley 19 provided, the guide roller 11 is fixed to a part of the wire 20 via a fixture 21, and the drive motor 18 is rotated to move the guide roller 11 in the front-rear direction. It is now possible to move it.

22, 22 are stoppers provided in the guide frames 3, 3, and the stoppers 22, 22 are stopped when the frame 7 moves rearward and protrudes from the rear end of the cargo box 1, that is, when the vertical movement of the elevating member 13 is stopped. The rearward movement of the guide rollers 11 is restricted at positions not restricted by the floor plate 2.

The present invention has the above-mentioned configuration. Next, the operation will be explained. When loading cargo into the cargo box 1, first, the cargo receiving platform 15 is rotated from the storage position (vertical state) and horizontally moved by the bending links 16, 16. The hydraulic cylinders 14 are held at the position shown by the solid line in FIG. 1, and the hydraulic cylinders 14 are extended to the position shown by the dashed line in FIG.
4 and 14 to raise the loading platform 15 to the highest position as shown by the solid line in FIG.

Next, by rotating the drive motor 18 in FIG. 4 clockwise, the guide rollers 11... are pulled forward by the wires 20, and the supporting devices 23, 23,
The frame body 7 and the loading platform 15 are horizontally moved forward, and the cargo is placed in front of the loading platform 15 at a predetermined position.

By repeating this, it is possible to sequentially load cargo from the front of the cargo box 1.

At this time, the lower end of the frame 7 is located somewhat above the floorboard 2, and the elevating members 13, 13 are housed in the vertical frames 8, 8 when they are raised to the highest level, so that the frame 7, etc. It is designed so that it does not come into contact with the floorboard 2.

When unloading the cargo from the packing box 1, first place the cargo on the cargo tray 15 at the position indicated by the dashed-dotted line in FIG.
Then, the loading platform 15 is horizontally moved to the position shown by the solid line in FIG.

Next, the hydraulic cylinders 14, 14 are extended to lower the loading platform 15, and the cargo is unloaded from the loading platform 15 when the loading platform 15 touches the ground (dotted chain line in FIG. 1).

In addition, when carrying out cargo handling work from the side of the cargo box, the work can be easily carried out using a forklift or the like by opening the sliding door.

As described above, the present invention makes it possible to move the cargo receiving platform vertically and horizontally within the cargo box, so that the cargo can be moved to any desired position in the cargo box, unlike the conventional method. There is no need to manually transport the cargo box from the edge to any desired position, which eliminates a great deal of wasted labor and improves loading efficiency.

Further, in order to raise or lower the cargo receiving platform, it is sufficient to simply rotate the receiving platform, and there is no need for complicated operations as in the conventional example.

In addition, a guide frame that guides the guide rollers is provided under the sliding door, and the vertical frames are moved outwards compared to the conventional example to widen the gap between the vertical frames, so the loading platform is similar to the conventional example. It's getting bigger.

Furthermore, since a guide frame is provided under the sliding door and there is nothing above the floorboard, when placing luggage on both ends of the floorboard, the rails do not get in the way unlike in the conventional example.

[Brief explanation of drawings]

Fig. 1 is a side view of the present invention, Fig. 2 is a front view of Fig. 1, Fig. 3 is a sectional view taken along line AA of Fig. 2, and Fig. 4 is an overall view of the drive device for horizontal movement. be. 2 is a floor plate, 3, 3 is a guide frame, 7 is a frame body, 8,
8 is a vertical frame, 11... is a guide roller, 13, 13
15 is a lifting member, 15 is a loading platform, and 23 is a support device.

Claims (1)

[Claims] 1 A pair of box-shaped guide frames fixed in the longitudinal direction at both ends of the floor plate of the cargo box, a sliding door provided on the guide frame so as to be able to rotate upward, and a sliding door that is horizontally moved along the guide frame by a driving means. a pair of support devices, a frame body supported by the rear ends of the pair of support devices and integrated into a mold by a pair of vertical frames and a horizontal frame, and a frame body provided on the packing box side; a stopper that is brought into contact with a support device to restrict rearward movement of the frame when the frame protrudes from the rear end of the cargo box; an elevating member provided within the vertical frame so as to be movable up and down by a drive means; and a lower end of the elevating member. It has a loading platform that is held horizontally,
A cargo handling device for a freight vehicle, characterized in that the cargo receiving platform is movable vertically and horizontally.