JPS6230823Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a truck loading platform structure in which a crane is mounted on one side of the loading platform.

In recent years, in order to save labor during cargo handling operations, some trucks have been seen in which a crane is mounted on one side of the loading platform, and the crane is used to load and unload heavy items onto the loading platform.

By the way, the lifting capacity of the crane changes depending on its working radius. Specifically, even if the crane is able to demonstrate its maximum lifting capacity near the mounting position of the crane, the lifting capacity of the crane changes depending on its working radius. As the radius increases, its lifting capacity decreases.

Therefore, in the above-mentioned crane, a heavy load corresponding to the maximum lifting force of the crane can be loaded on the loading platform near the crane installation position, but on the opposite side of the loading platform from the crane installation position, It was impossible to load a heavy load that matched the maximum lifting power of the crane, so the only option in this case was to prepare a separate crane truck and load it.

The present invention was devised in view of the above circumstances, and its purpose is to allow the crane mounted on one side of the loading platform to be used on the opposite side of the loading platform from where the crane is mounted. To provide a loading platform structure capable of loading a heavy load corresponding to the maximum lifting force and capable of transporting the heavy load in a stable manner.

Accordingly, the present invention provides an opening on the loading platform opposite to the crane mounting position, a lifting device is provided in the opening, and a movable platform is movably placed on the lifting device. It is characterized by:

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The loading platform structure of a truck with a crane according to the present invention will be explained below based on an embodiment shown in the drawings.

The drawing shows a cab-over type truck. In the drawing, 1 is a driver's cab, and 2, 2 are chassis frames extending from below the driver's cab 1 toward the rear in the direction of vehicle movement. While fixing the vertical joists 21, 21, a plurality of horizontal joists 22, 22...
These horizontal joists 22, 2
2...The loading platform 3 is fixed on top.

This loading platform 3 includes a floor plate 31, gate plates 32a, 32b, 32c swingably attached to the left and right edges and rear edge of the floor plate 31 via hinges, and a torii 33 erected at the front edge of the floor plate 31. It is a three-way opening type.

Further, 4 is a crane mounted between the operator's cab 1 and the loading platform 3, and the crane 4 is used to transport the loading platform 3.
The heavy objects A are loaded and unloaded onto the floorboard 31 at .

In the figure, 11 indicates a front wheel, and 12, 12 indicates a rear wheel.

A rectangular opening 30 is formed on the opposite side of the loading platform 3 from where the crane 4 is mounted, specifically, at the rear of the floorboard 31 constituting the loading platform 3, and a rectangular opening 30 is formed on the upper surface of the floorboard 31. A pair of guide grooves 34, 34 are formed extending in parallel from the front part of the floor plate 31 toward the opening 30, and the lifting device 5 is installed in the opening 30.

The elevating device 5 includes an elevating frame 51 that is formed into a framework and has approximately the same size as the opening 30, a set of hydraulic jacks 52 that move the elevating frame 51 up and down,
52 and a manual pump 53 that supplies pressure oil to the jacks 52, 52.
52 are fixed to brackets 23, 23 provided on the sides of the chassis frames 2, 2 and at positions corresponding to the openings 30, and the elevating frame 51 is mounted on these two jacks 52, 52,
The lift frame 51 is configured to be moved up and down with respect to the opening 30 via the hydraulic jacks 52, 52 by the operation of the manual pump 53.

Further, a pair of guide rails 54, 54 having a substantially U-shaped cross section are attached to the upper surface of the lifting frame 51 in parallel along the direction of travel of the automobile, and as the lifting frame 51 rises, the guide rails 54, When the guide rail 54 is flush with the floor plate 31, the guide rail 5
4 and 54 are guide grooves 3 formed in the floor plate 31.
4 and 34 are connected in series.

On the other hand, a frame 61 is formed into a frame to have approximately the same size as the opening 30, a receiving plate 62 is stretched over the frame 61, and the guide rail 54 is rotatably attached to the lower part of the frame 61. , 54 to a plurality of wheels 63, 6 running on the guide grooves 34, 34.
A moving table 6 is formed by forming a moving table 6 consisting of 3...
are movably placed on the guide rails 54, 54.

Further, in the embodiment shown in the figure, the guide rail 5
A stopper 55 is provided near the rear end of 4, 54,
This is done to prevent the movable platform 6 from moving backward from a predetermined position of the elevating frame 51, while the receiving plate 62 of the movable platform 6 becomes flush with the floor plate 31 as the elevating frame 51 descends. The elevating frame 51 is configured to be placed on the vertical joists 21, 21 when the elevating frame 51 is finished.

The present invention has the above-mentioned configuration, and when it is desired to load a heavy object A whose weight is close to the maximum lifting capacity of the crane 4 onto the rear part of the loading platform 3, the manual pump 53 is first activated and the load is carried out as shown in FIG. The elevating frame 51 is raised by the jacks 52, 52 until the guide rails 54, 54 are flush with the floorboard 31.

Next, after moving the moving platform 6 to the front side of the loading platform 3, in other words, to a position where the crane 4 can exert its maximum lifting capacity, the crane 4 lifts the heavy object A and places it on the receiving platform of the moving platform 6. Board 6
Place it on top of 1.

Then, the moving platform 6 is moved to the rear side of the loading platform 3 again, and the guide rails 54 of the lifting frame 51,
54, the manual pump 53 is operated to lower the elevating frame 51 to a position where the receiving plate 62 of the movable table 6 is flush with the floor plate 31, as shown in FIG. The lifting frame 51
At the same time as it rests on the vertical joists 21, 21, the movable base 6 fits within the opening 30, so that the movable base 6 does not move arbitrarily during traveling.

Incidentally, when the heavy object A on the moving table 6 is to be unloaded, the above-mentioned operation may be repeated again.

As is clear from the above explanation, according to the present invention, a crane mounted on one side of the loading platform can lift a heavy object of a weight commensurate with the maximum lifting capacity of the crane to the mounting position of the crane on the loading platform. Since it can be loaded on the opposite side, it is possible to load and unload heavy items extremely efficiently and easily without the need for a separate crane truck as in the past. Since it can be accommodated in the opening formed in the loading platform via the carrier, there is no possibility that the moving platform will move arbitrarily during traveling.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a truck equipped with a loading platform structure according to the present invention, FIG. 2 is a schematic plan view of the same, and FIG.
Figures 3 and 4 are enlarged cross-sectional views of the main parts.
The figure shows the lifting device in a lowered state, and FIG. 4 shows the lifting device in a raised state. Moreover, FIG. 5 is an enlarged vertical sectional view of the main part showing a state in which the movable platform is traveling on the loading platform. 3... Loading platform, 30... Opening, 31... Floor plate,
4... Crane, 5... Lifting device, 6... Moving platform, 51... Lifting frame.

Claims (1)

[Scope of utility model registration request] A loading platform structure for a truck in which a crane is mounted on one side of the loading platform, in which an opening is formed on the opposite side of the loading platform from where the crane is mounted, a lifting device is provided in the opening, and a lifting device is installed on the loading platform. A loading platform structure for a truck with a crane, characterized in that a moving platform is movably mounted on the platform.