JP3627926B2 - Structure of cargo vehicle - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to the structure of a large cargo vehicle.
[0002]
[Prior art]
Conventionally, for loading and unloading large loads such as trucks on a large freight vehicle, a forklift has been used, or a lift lift or the like integrally installed at the rear end of a cargo platform.
[0003]
However, with this type of lift, for example, a two-wheeled vehicle such as a bicycle or motorcycle can be loaded and unloaded, but even a small vehicle is difficult for a four-wheeled vehicle.
[0004]
Therefore, in order to load and unload the four-wheeled vehicle on the cargo platform, a pair of guide rails are installed from the cargo platform to the ground surface, and a small vehicle or the like can travel on the rails by self-propelled or the like.
[0005]
[Problems to be solved by the invention]
By the way, the present applicant previously proposed the invention “cargo collection and delivery system” Japanese Patent Application No. 2001-1610. The present invention is capable of achieving medium-to-short-range delivery of cargo reliably, easily and quickly and with the lowest possible cost, and its configuration is formed by dividing a large area. Large freight vehicles that circulate and pass through a number of small areas sequentially, and small freight vehicles that circulate and circulate in specific small areas and collect and deliver freight, and are collected in specific small areas The present invention is characterized in that the cargo is transferred to a large cargo vehicle that has been traveling from the small cargo vehicle in the area, and the cargo destined for the specific small zone is transferred from the large cargo vehicle to the small cargo vehicle.
[0006]
In this system, transshipment of cargo between a large cargo vehicle and a small cargo vehicle is performed by communicating with each other via a terminal, confirming the mutual position, contacting at a predetermined location, and stopping. Therefore, it is necessary to make the required time as short as possible from the viewpoint of quick collection and delivery, or in order not to obstruct traffic.
[0007]
Therefore, there is a large freight vehicle and a small freight vehicle that are in contact with each other at a predetermined location, and the small freight vehicle is directly placed in the large freight vehicle, and cargo can be loaded and unloaded in the large freight vehicle. It is possible to make it possible.
[0008]
When a small freight vehicle is mounted in this large freight vehicle, the use of a lift or guide rail as described above is very inefficient and inefficient.
[0009]
Therefore, the present invention has been developed to solve the above-mentioned dissatisfaction with the prior art and meet the demand so that the loading and unloading work of the small freight vehicle in the large freight vehicle can be achieved reliably, simply and quickly. The purpose is to do.
[0010]
[Means for Solving the Problems]
The present invention that solves the above-described conventional problems is characterized in that a small chamber composed of a floor wall, a side wall, and a ceiling wall is provided at the rear end of a cargo compartment of a large freight vehicle. The small vehicle including the two-wheeled vehicle entering from the rear to the small chamber is moved down and swinging by connecting the upper and lower ends of the small chamber and the upper end of the cargo chamber with a stretchable connecting member. It is a structure characterized in that it can be mounted on the floor wall of the small chamber in the posture.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
In the drawing, a large cargo vehicle 1, which is a large trailer truck, has a structure in which a box-shaped cargo chamber 3 is connected to the rear of a cab 2, and a large number of cargoes are stored in the cargo chamber 3 for each delivery area. The rear end wall 4 has a shutter structure and can be freely opened and closed.
[0013]
A rear end floor 8 is connected to the rear end of the floor plate main body 6 behind the rear wheel 5 of the cargo compartment 3 through, for example, a hinge 7 so as to be swingable up and down. 9 is mounted, and the auxiliary wheel 9 is grounded in a descending swinging displacement posture of the rear end portion floor 8, and can roll.
[0014]
Many means for swinging up and down displacement of the rear end floor 8 are conceivable. In the embodiment of FIG. 1, the rear end of the cargo compartment 3 and the rear end of the rear end floor 8 or the rear of the cargo compartment 3 are used. A connecting member 10 is disposed between the end side plate and the rear end of the rear end floor 8 so as to be vertically expanded and contracted by hydraulic control.
[0015]
Therefore, with the rear end wall 4 opened and the rear end floor 8 moved downward and oscillated, and the auxiliary wheel 9 is grounded, a small vehicle 11 including a two-wheeled vehicle is entered from the rear of the cargo compartment 3 to be inclined. The small vehicle 11 is ridden and mounted on the rear end floor 8 that has become.
[0016]
This riding form is considered variously, and the small vehicle 11 is completely advanced from the rear end floor 8 to the floor plate body 6 so that the rear end floor 8 is lifted and swung. It is most stable to transship with the cargo of the small vehicle 11.
[0017]
However, if there is not enough space for the small vehicle 11 to enter the floorboard body 6, the small vehicle 11 will be fixedly arranged on the rear end floor 8 in the inclined posture. In this case, at least the front wheels of the small vehicle 11 are locked and fixed to a vehicle stop (not shown) provided on the rear end floor 8 and the cargo is transshipped in a state where the brake is applied.
[0018]
Since the cargo transshipment operation here can be performed directly in the cargo compartment 3, a rapid processing can be expected. In addition, it is desirable for safety that the large cargo vehicle 1 is stopped. However, as long as this safety is ensured, the traveling time of the large cargo vehicle 1 is ensured if it can be performed while traveling. Furthermore, the speed of work is improved.
[0019]
In order to allow the large cargo vehicle 1 to perform work, an auxiliary wheel 9 is provided at the rear end of the rear end floor 8 so that the rear end floor 8 can smoothly travel even in an inclined posture. However, if the small vehicle 11 travels while being mounted on the rear end floor 8, the weight load of the small vehicle 11 may be large and may be applied to the rear end floor 8.
[0020]
Therefore, for example, as described above, the front wheel of the small vehicle 11 can be locked to the vehicle stop provided on the rear end floor 8, and the rear wheel can be grounded and ground without being mounted on the rear end floor 8. It would be good to do so.
[0021]
Further, if the auxiliary wheel 9 is made spherical as described above, there is no restriction in the rolling direction, and it can sufficiently cope with the traveling of the large cargo vehicle 1 even if it turns left and right along a curve along the road, for example.
[0022]
When the cargo transshipment operation is completed, the rear end floor 8 is lowered and swung, and the small vehicle 11 is pulled out of the large cargo vehicle 1 by self-propelling. However, as described above, when only the front wheels of the small vehicle 11 are locked on the rear end floor 8 and the rear wheels are grounded so that they can idle, the large wheels can be released by unlocking the front wheels. As the vehicle 1 moves forward, the small vehicle 11 is left behind, and both the front and rear wheels are grounded. That is, here, the small vehicle 11 can be lowered and returned to the roadway without causing the small vehicle 11 to run backward. In any case, it is a matter of course that sufficient consideration must be given to the following vehicle.
[0023]
Alternatively, as shown in FIGS. 2 and 3, a small chamber 12 that can be swung up and down can be connected to the rear end of the cargo chamber 3 of the large cargo vehicle 1. The small chamber 12 includes a floor wall 13, a side wall 14, and a ceiling wall 15. The rear end floor 8 and the floor wall 13 of the cargo chamber 3 are connected via a hinge 7, and the upper end portion of the small chamber 12 and the cargo. The rear upper end of the chamber 3 is connected to each other by a telescopic connecting member 10 that is hydraulically controlled. A spherical auxiliary wheel 9 similar to that described above is mounted on the lower surface of the rear end of the floor wall 13 of the small chamber 12. In addition, a bellows hood may be provided between the cargo compartment 3 and the small compartment 12 (not shown).
[0024]
Therefore, if the connecting material 10 here is extended, the small chamber 12 becomes an inclined posture in which the rear end descends, and if the connecting material 10 is contracted, the rear end floor 8 and the floor wall 13 of the cargo chamber 3 are at the same horizontal level. Can be. In this configuration, since the expansion / contraction stroke of the connecting member 10 is small, the operation is more reliable. In addition, since the connecting member 10 is arranged on the ceiling portion, the rear end wall 4 of the shutter structure is opened so that the small vehicle 11 or cargo can be taken in and out, and a sufficient frontage can be secured. .
[0025]
In addition, in the embodiment of FIG. 1, the rising posture of the rear end floor 8 is maintained between the side plate at the rear end of the cargo compartment 3 and the rear side end of the rear end floor 8 separately from the connecting member 10 in the contracted posture. Joint hooks (not shown) that are locked to each other as much as possible, and in the embodiment of FIG. 2, similar joint hooks (not shown) are provided between the upper end of the small chamber 12 and the rear upper end of the cargo chamber 3. The safety measures are taken to prevent the rear end floor 8 from inadvertently swinging. Further, in each of the embodiments of FIGS. 1 and 2, the connecting member 10 is not limited to a hydraulic cylinder structure, and may be a chain, for example, as long as the above function can be performed.
[0026]
【The invention's effect】
Since the structure of the freight vehicle according to the present invention is as described above, the loading and unloading operation of the small freight vehicle in the large freight vehicle can be achieved reliably, easily and quickly. There are many excellent effects such as delivery that can be achieved reliably, simply and quickly and with the lowest possible cost.
[Brief description of the drawings]
FIG. 1 is an explanatory cross-sectional view showing an embodiment of the present invention.
FIG. 2 is an explanatory sectional view showing another embodiment of the present invention.
FIG. 3 is a rear perspective view of FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Large cargo vehicle, 2; Driver's cab, 3; Cargo compartment, 4; Rear end wall, 5; Rear wheel, 6: Floor board main body, 7; Hinge, 8; Rear end floor, 9; Connecting material, 11; small vehicle, 12; small room, 13; floor wall, 14; side wall, 15;

Claims (1)

A small chamber (12) composed of a floor wall (13), a side wall (14) and a ceiling wall (15) is provided at the rear end of the cargo chamber (3) of the large cargo vehicle (1). The rear end floor (8) and the floor wall (13) are connected via a hinge (7), and the small chamber (12) upper end and the cargo chamber (3) upper end are extendable connecting members. In (10), the small vehicle (11) including the two-wheeled vehicle that is connected to each other and enters the small chamber (12) from behind is mounted on the floor wall (13) of the small chamber (12) in the downward swing displacement posture. A structure of a freight vehicle characterized by being made possible.

Images