JP2002120642A - Device for preventing load shift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely fix loads without damaging them. SOLUTION: This device is provided with a frame part 3 for surrounding a load-carrying platform Ta for mounting the loads B, a driving mechanism 4 for elevating the frame part 3, and a covering part 5 provided in the frame part 3 to cover the loads B layered in the platform Ta to be brought into a close contact condition in the step where the frame part 3 is lowered down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing collapse of a load suitable for use as, for example, a truck bed (loading portion).

[0002]

2. Description of the Related Art Conventionally, for example, when loading luggage on a truck bed (luggage placing section), after placing a sheet on the bed,
It is common to fix the luggage by hanging a rope.

[0003]

However, in the prior art, the above-mentioned work of covering the sheet and the work of hanging the rope are both cumbersome and burdensome for the operator, and the rope is hung. Although the luggage located in the portion can be firmly fixed, the luggage located in the portion deviated from the rope has a problem that the luggage may move due to shaking or vibration of the vehicle.

[0004] In the case of relatively fragile luggage such as cardboard boxes and furniture, there is a problem that it is not possible to say that there is no danger of breaking the luggage if the rope is tightly wrapped around, and these problems are solved. This has been a conventional problem.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a load collapse prevention device capable of fixing a load easily, reliably and without breaking. The purpose is.

[0006]

According to a first aspect of the present invention, there is provided an apparatus for preventing collapse of a load, comprising: a frame portion surrounding a load storage portion for loading loads; a driving mechanism for lifting and lowering the frame portion; It is characterized in that it is provided with a covering portion that covers the load stacked on the load placing portion in a press-contact state when the frame portion is provided and lowered, and the configuration of such a load collapse prevention device is described above. This is a means for solving the conventional problem described above.

In the load collapse prevention device according to a second aspect of the present invention, the frame portion is configured to move up and down along a plurality of parallel pillars standing upright around the luggage placing portion. In the load collapse prevention device according to claim 3, the covering portion includes a sheet member, and an elastic body that connects a peripheral portion of the sheet member to the frame portion.

In this case, the sheet member of the covering portion includes a sheet-shaped member in addition to a sheet-shaped member, and a coil spring or rubber can be used for the elastic body.

[0009]

The load collapse prevention device according to the first aspect of the present invention has the above-mentioned structure. For example, when the device is applied to a truck bed, the work of covering the stacked luggage with a sheet or hanging a rope. There is no need to perform a burdensome and complicated work such as a work of fixing the luggage, and the workability is improved.

Further, when the frame is lowered, the covering portion that covers the packages stacked on the baggage placing portion in a pressure-contact state presses all the packages toward the baggage placing portion, so that almost all of the packages are loaded. It can be fixed firmly, and in this case there is no concentrated load on the luggage, so even if it is a relatively fragile luggage such as cardboard box or furniture, the luggage will be damaged Is avoided.

In the load collapse prevention device according to the second aspect of the present invention, the frame portion is smoothly moved up and down, and in the load collapse prevention device according to the third aspect of the present invention, the frame is stacked on the luggage placing portion. The sheet member can be simply and reliably pressed against the load as a whole.

[0012]

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

FIG. 1 to FIG. 5 show an embodiment of a load collapse prevention device according to the present invention. In this embodiment, a case where the load collapse prevention device according to the present invention is applied to a van body type truck is shown.

As shown in FIG. 1, this collapse prevention device 1
Are provided at the four corners of the truck (loading part) Ta of the truck T.
The vehicle includes a column 2, a frame 3 surrounding the carrier Ta, a drive mechanism 4 for moving the frame 3 up and down, and a cover 5 provided on the frame 3 and covering the load B stacked on the carrier Ta. .

The drive mechanism 4 is provided one set before and after the loading platform Ta. As shown in FIG. 3, a geared motor 42 mounted on the support 2 via a bracket 41 and left and right supports arranged in the vehicle width direction. A shaft 43 rotatably mounted between the upper ends of the gears 2 and 2;
4 and a sprocket 45 provided on the shaft 43,
Between the chain 46 (shown by phantom lines) and small diameter sprockets 47, 47 provided at both ends located in the groove 2a of the column 2 of the shaft 43 and at the lower ends of the left and right columns 2, 2. 4 and 5, the chain 48, 48 and the frame 3 located in the groove 2a of the column 2 via a joint fitting 49 as shown in FIGS. By being connected, the frame 3 is moved up and down along the column 2 by the output of the geared motor 42.

As shown in FIG. 2, the covering portion 5 includes a net (sheet member) 51 formed by knitting a belt in a lattice shape,
The frame 51 is provided with a plurality of coil springs 52, and the periphery of the net 51 and the frame 3 are connected by the plurality of coil springs 52 so that the net 51 is stretched inside the frame 3. At the stage where the part 3 is lowered,
The load Ta is covered with the net 51 to which the elastic force is applied from the plurality of coil springs 52 while covering the entire load B on the load Ta.
It can be pressed and fixed to the side.

In the load collapse prevention device 1, after the load B is loaded on the loading platform Ta with the frame portion 3 standing by at the upper end of the support column 2, the front and rear drive mechanisms 4 are operated by operating a controller (not shown). The frame 3 is lowered substantially horizontally along the column 2 by operating the respective geared motors 42.

At this time, if there is a relatively large difference in height between the front and rear luggage B on the loading platform Ta, the rotational speed of the front and rear geared motors 42, 42 is made different so that the frame 3 is moved to the luggage B.
May be lowered while tilting obliquely in accordance with the loading situation of.

When the frame 3 reaches the loading platform Ta or in the vicinity thereof, the controller is operated to stop each of the geared motors 42 of the front and rear driving mechanisms 4 respectively. Covers the package B on the loading platform Ta.

Therefore, in this load collapse prevention device 1,
There is no need to perform a troublesome work such as a work of putting a sheet on the baggage B stacked on the bed Ta or a work of fixing a baggage by hanging a rope, and the workability is improved by that much.

At the stage where the frame 3 is lowered,
The net 51 of the covering portion 5 that covers the package B stacked on the carrier Ta
Receives all the packages B against the loading platform Ta by receiving the elastic force generated by the plurality of coil springs 52, so that almost all the packages B can be firmly fixed. A load is not concentrated on B. As a result, even if the load is relatively weak, such as a cardboard box or furniture, the load B can be prevented from being damaged. Become.

Further, in the load collapse prevention device 1, the frame 3 moves up and down along the column 2 by the output of the geared motor 42 of the drive mechanism 4.
In addition, in the load collapse prevention device 1, the covering portion 5 is composed of a net 51 formed by knitting a belt in a lattice shape and a plurality of coil springs 52. Since the peripheral portion and the frame portion 3 are connected by the plurality of coil springs 52, the net 51 can be simply and reliably pressed against the load B stacked on the carrier Ta.

In the above-described embodiment, the case in which the apparatus for preventing collapse of the load according to the present invention is applied to a van body type truck is shown. However, the present invention is not limited to this. It can be applied to trucks and containers.

Further, the detailed structure of the load collapse prevention device according to the present invention is not limited to the above-described embodiment. As another structure, for example, four sets of the above-described driving mechanisms are provided so that It is possible to raise and lower the four corner portions independently according to the loading condition of the load B, and to provide a winding means for the cover portion in the frame portion to adjust the pressing force of the cover portion against the load. It is also possible to adopt a configuration in which it is obtained.

[0025]

As described above, according to the first aspect of the present invention,
In the load collapse prevention device according to the above, since the above-described configuration is adopted, for example, when applied to a truck bed, burdensome work such as covering the loaded luggage with a sheet or hanging a rope to fix the luggage is burdensome. Can be omitted, that is, it is possible to fix the load stacked on the load placing portion easily, reliably, and without breakage.

In the apparatus for preventing collapse of a load according to the second aspect of the present invention, since the above structure is employed, the frame portion can be raised and lowered smoothly. With such a configuration, it is possible to obtain an extremely excellent effect that the sheet member can be simply and reliably pressed against the load stacked on the load placing portion.

[Brief description of the drawings]

FIG. 1 is an overall perspective explanatory view showing an embodiment of a cargo collapse prevention device according to the present invention when applied to a van body type truck.

FIG. 2 is a partially enlarged explanatory view of a frame portion and a covering portion of the load collapse prevention device shown in FIG.

FIG. 3 is an explanatory partial cross-sectional view of a driving mechanism of the load collapse prevention device shown in FIG. 1 at a geared motor installation site.

FIG. 4 is a partial perspective explanatory view (a) and a partial enlarged explanatory view (b) of a connecting portion between a drive mechanism and a frame of the load collapse prevention device shown in FIG. 1;

FIG. 5 is a partial vertical cross-sectional explanatory view of a connection portion between a driving mechanism and a frame of the load collapse prevention device shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Load collapse prevention device 2 Prop 3 Frame part 4 Drive mechanism 5 Cover part 51 Net (sheet member; cover part) 52 Coil spring (elastic body; cover part) B Luggage Ta Luggage carrier (luggage placement part)

Claims (3)

[Claims] 1. A frame surrounding a luggage placement unit for loading luggage, a drive mechanism for raising and lowering the frame, and a frame provided on the frame and stacked on the luggage placement unit when the frame is lowered. An apparatus for preventing collapse of a load, comprising a covering portion for covering a load in a pressed state. 2. The frame part moves up and down along a plurality of parallel columns that stand upright around the luggage placing part.
A load collapse prevention device according to item 1. 3. The load collapse prevention device according to claim 1, wherein the covering portion includes a sheet member and an elastic body that connects a peripheral portion of the sheet member to the frame portion.