JPS58161631A - Device for automatically opening and closing container rear door of cargo vehicle - Google Patents

Abstract

PURPOSE:To make it possible to automatically open and close a rear door upon a container tilting, in a cargo vehicle which may load and unload the container, by releasably engaging the container with the rear door, and as well by releasably connecting the container with a vehicle body. CONSTITUTION:In order to unload a container 3, the connecting fixtures 21 of cables 19 which are at first removed from pins 21 on hooks 15, are engaged to pins 22 at both sides of the rear section of a vehicle body, respectively, so that the cables 19 are held in their storing positions. Then, an arm 5 is rotated clockwise by extending the rod of a cylinder 7 for lowering the container 3 connected with slings 9 which are suspended from the top of the arm 5, to the ground. Meanwhile the arm 5 is rotated counterclockwise in order to load the container 3. Further, in order to discharge the content of the container 3, the connecting fixtures 21 of the cables 19 are at first removed from the pins 22, and then, are engaged to the pins 20 of the hooks 15. Next, the arm 5 is rotated clockwise, and then the container 3, is tilted after the cables 19 are linearly extended, while a rear door 12 is opened.

Description

[Detailed Description of the Invention] The present invention relates to a device that automatically opens and closes the rear door of a container when the container is tilted in a cargo handling vehicle capable of unloading or tilting the container. .

Hereinafter, the configuration of the present invention will be described with reference to the drawings in terms of embodiments. As shown in FIGS.
A container hoisting device 4 for lowering and unloading the container 3 is provided. The container lifting device t4 has a pair of arms 5, 5 on both sides of the rear of the vehicle body 2.
is pivotably supported 6, 6 at its lower end, and the arm 5
An arm rotation cylinder 7 as a driving means is connected between the vehicle body 2 and the vehicle body 2, and a horizontal shaft 8 is provided between the upper ends of the arms 5, 5. Hangers 9 are provided at both ends of the horizontal shaft 8.
9 is suspended, and the lower end of the ψ trap 9, 9 is a ring-shaped hanging metal J.
410 and 10 are connected.

On the other hand, there are two protrusions 11°11 on both sides of the container 6.
is provided protrudingly, and the upper part of the rear door 12 is pivotally connected 16 to the rear of the container 3. In addition, pins 14 as locking pieces are protruded on both sides of the rear door 12, and seven hooks 15 that can be engaged with the pins 14 are rotatable on the rear side of the container 6. It is freely pivoted 16 mm 5, and also has containers 6 and 7. The seven hooks 15 are connected to the bottle 14 by a compression coil spring 17 disposed between the bottles 15 and 15.
is biased in the direction of engagement.

By the way, one end of the cable 19 is connected to both sides of the rear portion of the vehicle body 2, and the other end of the cable 19 is connected to a connecting fitting 21 which is detachably attached to a bin 20 which is protruded from the tip of the seven hooks 15.

Incidentally, reference numeral 22 denotes a bin protruding from both sides of the rear portion of the vehicle body 1, into which the connecting fitting 21 is attached when the cable 19 is stored. Further, in the embodiments of the present invention, the connecting member is described as a cable, but it may also be a connecting rod such as a link.

Next, to explain the operation of the present invention, in order to unload the container 6, first connect the connecting fittings 21 of the cables 19 with the 7 hooks 15.
Remove the bottle 20 from the rear of the vehicle. Bin 2 on i side
2 and hold the cable 19 in the retracted position. Next, by extending the mouth and do of the arm rotating cylinder 7 and rotating the arm 5 clockwise, the rotating cylinder 7 and rotate the arm 5 counterclockwise.

Next, in order to tilt the container 6 and discharge the contents inside the container 6, the connecting fitting 21 of the square rope 19 is removed from the bin 22 and attached to the bin 20 of the seven hooks 15. After that, when the rod of the arm rotation cylinder 7 is extended, the arm 5 rotates clockwise by 11 m, and the container 3 also moves rearward in the same manner as described above. The container 6 starts tilting from a state in which the cable 19 attached between the cable 15 and the vehicle body 2 extends linearly. 7. Immediately before the start of container 3 solicitation. Ri1
5 is forcibly rotated counterclockwise by the pull of the chamber vermilion 19, and along with this, the engagement between the 7 hook 15 and the rear door bin 14 is released, and as a result, the rear door 12 can be rotated. becomes. When the container 3 subsequently starts to tilt, the rear door automatically rotates and the contents are discharged from the rear end of the container 6.

When the contents in the container 3 have been discharged, the rod of the arm rotation cylinder 7 is switched to the retracting direction, and the rod of the arm rotation cylinder 7 is fixed to the rotor 5 and the antenna 6.

As described above, according to the present invention, a conventional cargo handling vehicle that could only be used with a box-shaped container can now be used with a box-shaped container by providing a rear door, and as a result, the capacity of the container can be increased. be able to. In addition, when tilting the container, the rear door of the container can be opened and closed automatically, making it extremely easy to operate.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the present invention, and FIG. 1 shows a container loading/unloading state, and FIG. 2 shows a container tilting state.

Claims (1)

[Claims] It consists of a pair of left and right arms whose base ends are pivotally supported at the rear end of the vehicle body, a hanger attached to the other end of the arms, and a drive means disposed between the vehicle body and the arms, and the drive means In a container cargo handling vehicle configured to appropriately unload or tilt a container mounted on a vehicle body, the container has a rear door pivotally supported at the rear end of the container so as to be openable and closable, and one end of the container (t!lj5#F#I-) An automatic container rear door opening/closing device for a cargo handling vehicle consisting of a detachable connecting member.