JPS5850893B2 - cargo transport vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo transport vehicle having a locking mechanism for fixing a container removably mounted on a tilting frame.

Conventionally, as an example of a cargo transport vehicle, a tilting frame is hinged to the rear of the vehicle chassis, and dumping means such as a cylinder is provided between the chassis and the tilting frame, and the dumping means allows the tilting frame to be tilted rearward. A container is removably mounted on this tilting frame, and the container is tilted backwards to discharge the cargo.

This transport vehicle is equipped with a locking mechanism (twist lock) for fixing the container to the tilting frame.

This twist lock is rotatably provided with hanging pieces having T-shaped heads at the four corners of the tilting frame, while rectangular shaped pieces with T-shaped heads can be passed through, corresponding to the above-mentioned hanging pieces, at the four corners of the lower surface of the container. A retaining portion having an insertion hole is formed, and after the containers are stacked on the tilting frame, the locking piece is rotated 90 degrees to engage with the engaging portion.

However, with this, there is play in the front and rear directions between the container insertion hole and the latching piece, so when the container is tilted, and when starting or stopping, the container moves back and forth with respect to the tilting frame, causing There were other problems, such as giving the operator and workers a sense of anxiety as if the container would fall, and causing abnormal noise and damage to the loaded items.

The present invention has been made in view of the above, and provides a cargo transport vehicle equipped with a locking mechanism that securely fixes a container to prevent it from moving vertically and longitudinally with respect to a tilting frame. be.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, reference numeral 1 is a cargo transport vehicle, which transports a container 2 having an open/close lid at the rear in a removable manner. The tilting frame is hinged by a hinge pin 5 at the rear of the chassis 3, and is provided with dumping means 6 for tilting it rearward.

The tilting frame 4 has two main girders 1 arranged in parallel in the longitudinal direction,
An overhanging frame 8 that overhangs laterally is attached to the front and rear ends of the main girder, and the dumping means 6 includes an outer cylinder 9a of a telescopic cylinder 9 attached to a bracket on the front side of the front overhanging frame 8. The rod 9b is rotatably provided via the rod 9b.
is connected to the chassis 3 at its tip.

Further, the tilting frame 4 is provided with a locking mechanism for fixing the container 2. The locking mechanism includes a vertical locking mechanism 11 that restricts the vertical movement of the container 2, and a front-back locking mechanism 11 that restricts the vertical movement of the container 2. Directional lock mechanism 1
2, the vertical locking mechanism 11 is a twist lock, and a locking piece 13 having a T-shaped head is rotatably provided protruding from both ends of the upper surface of the overhanging frame 8. 13 is a support rod 13 attached to the lower surface of the rectangular locking portion 13a.
b is attached and held at the lower part of the support rod 13b, and on the other hand, rectangular insertion holes 14 are opened at the four corners of the lower surface of the container 2 corresponding to the locking pieces 13 through which the locking portions 13a can pass. By forming a retaining portion and rotating the locking piece 13 by 90°, both sides of the locking portion 13a engage with the retaining portion of the container 2, thereby releasably locking and fixing the container 2.

In addition, the front and rear opening mechanism 12 has edge members 15 fixed to both sides of the rear surface of the rear extension frame 8 so as to project slightly upward, and a stopper 16 that is movable back and forth is provided on the protrusion. A disc-shaped contact plate 16b is provided at the front end of the body portion 16a, and a handle 16c is provided at the rear end,
The body part 16a is engaged with the female thread provided on the edge member 15, and moves forward by rotating the body part 16a, and the contact plate 16b contacts the lower rear surface of the container 2 to fix the container 2. To support.

Next, to explain the operation, when the container 2 is mounted on the tilting frame 4, the container 2 is lifted by a crane or the like, and after being lowered and placed so that the hooking piece 13 is inserted into the insertion hole 14, The locking piece 13 is rotated 90 degrees to fix it in the vertical direction, and the stopper 16 is rotated and moved forward to bring the contact plate 16b into contact with the container 2 to fix it in the front and rear direction.

When transporting the container 2 in this state and discharging the cargo upon arrival at the destination, open the lid of the container 2, extend the cylinder 9, and tilt the container 2 together with the tilting frame 4 backwards. and discharge.

In addition, when unloading the container 2, the above operation can be performed in reverse, and the stopper 16 is moved backward and the latch piece 1 is moved backward.
After rotating 3 by 90 degrees, the cargo is unloaded using a crane or the like.

As described above, in the present invention, by providing the locking mechanism on the tilting frame, the container can be securely fixed to the tilting frame, so that the container can be transported and the loaded items can be safely discharged.

Furthermore, since the locking mechanism is essentially composed of vertical and longitudinal locking mechanisms, the container does not move vertically or longitudinally during transportation or discharge, thereby reducing the sense of anxiety for drivers and workers. This has the advantage of preventing the generation of abnormal noise and damage to the loaded items.

[Brief explanation of drawings]

The drawings illustrate embodiments of the present invention, and FIG. 1 is a side view of the cargo carrier showing the tilting frame when it is horizontal, FIG. 2 is the same side view showing the tilting frame when it is tilted, and FIG. FIG. 4 is a cross-sectional view of a factor showing the locking mechanism, and FIG. 4 is a perspective view of the cargo carrier when the tilting frame is tilted. 1... Freight carrier, 2... Container,
3...Car chassis, 4...Tilt frame, 6
... Dumping means, 1 ... Main girder, 8 ...
... Length frame, 11 ... Vertical lock mechanism, 12 ... Front-rear lock mechanism, 15 ...
... End 1ulls material, 16 ... Stopper.

Claims (1)

[Claims] 1. In a cargo transport vehicle, the tilting frame hinged to the rear of the vehicle chassis can be tilted by a dumping means, and the cargo transport vehicle is equipped with a locking mechanism for fixing a container mounted on the tilting frame, wherein the locking mechanism enables the container to be engaged and detached. It essentially consists of a vertical locking mechanism that locks and restricts the vertical movement of the container, and a longitudinal locking mechanism that has a stopper that is movable in the front and rear directions with respect to the tilting frame and restricts the vertical movement of the container. A freight vehicle characterized by comprising: