KR940006118Y1 - Van box with floor system for freight movement - Google Patents

Abstract

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Description

Van box with cargo moving floor system

1 is a partially cut away perspective view of the cargo moving floor system of the van box according to the present invention.

2a to 2d is a working principle of the cargo moving floor of the present invention.

3 is a plan view of the guide rail and the sliding bearing of the present invention.

Figure 4 is a perspective view showing the floor drive device of the present invention from the bottom to the top.

5 is a side view of a typical van truck.

* Explanation of symbols for main parts of the drawings

W: Cargo X: Van Box

10: transverse support 11: guide rail

12: sliding bearing 13: slat

20: frame assembly 21: front cylinder unit

22: rear cylinder unit 22a: switching valve

23: piston rod 24: connector

25: drive frame 26: drive shoe

27: control rod 28: front trigger

29: rear trigger 30: front stopper

31: rear stopper

[Effect of design]

The present invention relates to a van box mounted on a van truck, and in particular, a van having a freight moving system (FLOOR) system for automatically moving cargo forwards or backwards on the floor of the floor inside the van box. It's about the box.

[Design background]

As shown in FIG. 5, the van truck refers to a freight transport vehicle in which a box-shaped van box X for loading cargo is integrally installed at the rear, and the van box X is a front wall. It has a box shape consisting of two side walls, a ceiling wall, a rear wall with a door, and a floor of the inner floor.

Various van trucks such as thermal insulation, refrigeration trucks, and refrigerated trucks that are currently used are very convenient for transporting cargoes requiring constant temperature like food, or requiring protection against rain and snow, but loading and unloading operations of cargoes. There is a problem that this inconvenience and takes a lot of time. In other words, when loading a cargo, the cargo should be placed on the floor at the back of the van box and then moved forward by human force.When unloading the cargo, the cargo should be moved backwards and then lowered. It takes a lot of labor and a lot of work time to carry the cargo back and forth inside the van box.

In addition, bulk cargo such as grain and compressed waste is economical to be transported as-unpacked, and if possible, it can be carried by a van truck, which can carry a larger amount and the cargo will not be blown during transportation. It is advantageous in that point.

However, the loading of bulk cargo can be done by special equipment or fork-lane which pushed the cargo into the van box at one time. However, it was difficult to unload and could not be transported by van truck.

[Purpose of designation]

The present invention has been made to solve the above-mentioned problems of the conventional truck, by configuring a cargo moving floor system consisting of a cargo moving floor and a floor driving device to automatically move the cargo forward or backward inside the van box The purpose is to provide a van box that makes loading and unloading cargo easier and faster.

Summary of the proposal

The present invention is a van box is a plurality of transverse support that is supported on the vehicle body of the van truck, the drive frame and the driving shoe is arranged to be fixed to the front and rear direction at a predetermined interval on the transverse support so as to achieve the object A cargo moving floor consisting of a plurality of guide rails configured other than a part, a plurality of sliding bearings fixed on the guide rails, and slats installed on the guide rails and the sliding bearings to move forward and backward; And a frame assembly having a width approximately equal to the width of the cargo moving floor, a cylinder unit installed in the frame assembly, a plurality of piston rods connected to the cylinder unit, and a piston rod supported by the vehicle body of the van truck. Floor drive device consisting of a connector which is installed in different positions, the drive frame is installed in each transverse direction on the connection, the drive shoe coupled to the respective drive frame at a predetermined interval and the slab of the cargo moving floor is coupled to the top Consists of cargo moving floor system.

[Description of Specific Example of Design]

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a cargo moving floor system applied to the present invention partially cut, the cargo moving floor system forms a floor of the inner bottom of the van box and at the same time is a device that can automatically move the cargo forward or backward have.

The cargo moving floor system of the van box of the present invention is largely divided into the cargo moving floor and the floor driving device. The cargo moving floor forms the floor of the van box, and in order to automatically move the cargo forward or backward, a plurality of transverse supports 10 supported on the vehicle body of the van truck, on the transverse supports 10 A plurality of guide rails 11 fixed in the length (front and rear) direction at a predetermined interval, a plurality of sliding bearings 12 fixed on the guide rails 11, and each of the guide rails 11 and the sliding bearings 12 It consists of a slat (slat) (13) installed to move in the longitudinal direction on the).

The guide rail 11 and the sliding bearing 12 have a drive frame 25 and a drive shoe 26 of a floor drive device, which will be described later, as can be seen in FIG. 3 with the slats 13 removed. It is not composed of the part that is arranged and operated. In addition, the sliding bearings 12 are densely arranged at narrow intervals in the front part and the lower part of the floor which are relatively heavily loaded, and are arranged at wide intervals in the central part which are relatively lightly loaded. The sliding bearing 12 is made of a special plastic material. The slat 13 has a cross section which can be reciprocated only in the longitudinal direction and cannot be separated from the guide rail 11 and the sliding bearing 12.

The cargo moving floor configured as described above moves cargo according to the following principle.

First, as shown in FIG. 2a, all the slats 13 are advanced slowly at a time by a certain distance in the cargo movement direction. At this time, the cargo W moves with the slat 13 by the advancing distance of the slat 13 by the frictional force with the slat 13.

Next, as shown in FIG. 2B, the three slats 13 become one combination, and the first slat 13 of each combination moves backwards at a high speed. At this time, since the frictional force of the cargo (W) and the two slats (13) of each combination is not greater than the frictional force of the cargo (W) and one slat (13) of each combination to reverse at a high speed, the cargo (W) is Keep stopped.

Subsequently, as shown in FIG. 2C, the second slat 13 of each combination moves backwards at a high speed. Even in this case, the cargo W is kept stationary by the frictional force. Finally, as shown in FIG. 2d, the third slat 13 of each combination moves backwards at a high speed. In this case, the cargo W is kept stationary by the frictional force.

The slats 13 are to repeat the above operation to move the cargo to the desired place.

As shown in FIGS. 1 and 4, the floor driving device for driving the slats of the cargo moving floor is supported by the vehicle body of the van truck and has a width approximately equal to the width of the cargo moving floor. The frame assembly 20, the cylinder unit installed in the frame assembly 20, the three piston rods 23 connected to the cylinder unit, and the three piston rods 23 The connector 24 is installed to the drive, the drive frame 25 installed in the transverse direction on each of the three connector 24, the drive shoe (26) coupled to the drive frame (25) at regular intervals. Consists of

The cylinder unit is installed at the front of the frame assembly 20 and is installed at the rear of the front cylinder unit 21 and the frame assembly 20 to which the three hydraulic cylinders are coupled, and the three hydraulic cylinders and one switching valve 22a. Composed of a rear cylinder unit 22 is coupled, the piston rod 23 is both ends are connected to the piston of the hydraulic cylinder of the front cylinder unit 21 and the rear cylinder unit (22). The three connectors 24 provided in the piston rod 23 are different in position so as to fall in the longitudinal direction by the interval between the transverse center lines of the drive frame 25.

The drive shoes 26 coupled to each drive frame 25 are spaced apart by a width of the three slats 13 of the above-described cargo moving floor, and the drive shoes 26 of each drive frame 25 are adjacent to each other. It is arrange | positioned so that the drive shoe 26 of the frame 25 may shift | deviate by the width | variety of one slat 13. As shown in FIG.

The slats 13 of the cargo moving floor are fixed to each manual shoe 26 of the floor driving device so that the slats 13 move together with the drive shoes 26, and the drive feeding 26 of each drive frame 25 is The three slats 13 are spaced apart at regular intervals by the widths of the three slats 13 and are arranged so as to be shifted by the widths of the driving shoes 26 and the one slat 13 of the adjacent drive frame 25. One combination is fixed to the driving shoes 26 of the other driving frame 25, respectively.

That is, for example, as shown in FIG. 1, when the first slat 13 on the right side is fixed to the first drive shoe 26 on the right side of the drive frame 25 located rearward, the second slat on the right side ( 13 is fixed to the first drive shoe 26 on the right side of the drive frame 25 located in the middle, and the first drive shoe (right) on the right side of the drive frame 25 located on the front side of the third slat 13 on the right side. 26).

In the same manner as above, the slats 13 between the fourth to the left ends of the right side are repeatedly fixed to the driving shoes 26 of the different driving frames 25 by forming a combination of three slats 13. have.

The switching valve 22a adjusts the hydraulic direction of the front cylinder unit 21 and the rear cylinder unit 22 to the hydraulic cylinders, so that the three piston rods 23, the connector 24 connected thereto, and the drive frame 25 are connected thereto. , Drive shoe 26, and the slat 13 serves to change the direction of movement.

In order to operate the switching valve 22a, a control rod 27 extending forward is connected to the switching valve 22a, as shown in FIG. 4, and the front drive frame 25 is connected to the control rod 27. The front trigger 28 fixed to the lower part of the rear and the rear trigger 29 fixed to the lower portion of the rear drive frame 25 is installed to be movable, the control between the front trigger 28 and the rear trigger 29 The front stopper 30 and the rear stopper 31 are fixed to the rod 27. The operation of the switching valve 22a is performed by the rear trigger 29 of the rear drive frame 25 moving forward to contact the rear stopper 31 or the front trigger 28 of the front drive frame 25 reversed, and thus the front stopper. The control rod 27 is moved forward or backward in contact with the 30.

The cargo moving floor system of the van box of the present invention configured as described above acts as follows.

The slats 13 of the cargo movement floor simultaneously move in the cargo movement direction as described above, and then three slats 13 are combined in one direction in the opposite direction to the cargo movement, so that one slat 13 of each combination is provided. The cargo is moved in the desired direction by repeating the stepwise return operation.

The above-mentioned operation of the slats 13 of the cargo moving floor is performed by the forward and backward reciprocating motion of the drive frame 25, the drive shoe 26 and the piston rod 23 of the floor driving device. ) Is reciprocated in the following way.

A) When loading cargo

1) First, three piston rods 23 move forward at a slow speed at the same time. At this time, all the slats 13 are moved forward at the same time and the cargo is moved by the advancing distance of the slats 13 together with the slats 13 by the frictional force with the slats 13.

2) Next, one piston rod 23 connected to the drive frame 25 located at the rear moves backward at a high speed. At this time, the slat 13 connected to the rear drive frame 25 is retracted. The frictional force of the slat 13 which does not move with the cargo is greater than the frictional force of the slat 13 which retreats with the cargo at a high speed. Maintain state.

3) Subsequently, one piston rod 23 connected to the drive frame 25 located in the middle retreats at a high speed. At this time, the slat 13 connected to the driving frame 25 in the middle is reversed, and the cargo maintains the stop state as when the slat 13 connected to the driving frame 25 in the rear is reversed.

4) Finally, one piston rod 23 connected to the drive frame 25 located at the front moves backward at a high speed. At this time, the slat 13 connected to the front drive frame 25 is reversed, and the cargo maintains the stationary state as in the case described above.

When the operation of 1) -4) is repeated, the cargo is moved forward from the rear of the van box. That is, the cargo is loaded into the van box.

B) unloading cargo

1) First, three piston rods 23 move backward at a slow speed. At this time, all the slats 13 are moved backwards at the same time and the cargo moves by the revolving distance of the slats 13 together with the slats 13 by the frictional force with the slats 13.

2) Next, one piston rod 23 connected to the drive frame 25 located in the front is advanced by the reverse speed at a high speed. At this time, the slat 13 connected to the front drive frame 25 is advanced. The frictional force of the slat 13 that does not move with the cargo is greater than the frictional force of the slat 13, which advances at a high speed with the cargo. Maintain state.

3) Subsequently, one piston rod 23 connected with the drive frame 25 located in the middle advances at a high speed by a reversed distance. At this time, the slat 13 connected to the intermediate drive frame 25 is advanced, and the cargo maintains the stop state as when the slat 13 connected to the front drive frame 25 is advanced.

4) Finally, one piston rod 23 connected to the drive frame 25 located at the rear moves backwards at a high speed. At this time, the slat 13 connected to the rear drive frame 25 is advanced, and the cargo maintains the stationary state as in the case described above.

When the operation of 1) -4) is repeated, the cargo is moved from the front of the van box to the rear. The cargo is unloaded from the van box.

The above-mentioned reciprocating motion of the piston rod 23 is performed by the control rod 27 connected to the front cylinder unit 21, the rear cylinder unit 22, and the switching valve 22a of the rear cylinder unit 22. For example, the switching from the reciprocating method when loading the cargo to the reciprocating method during loading and unloading is performed by operating a control valve (not shown). The hydraulic driving method for causing the piston rod 23 to perform the reciprocating motion described above has various methods, but one example will be described below in connection with the action of the control rod 27.

In the case of loading cargo, when all the slats 13 of the cargo movement floor are moved forward at the same time, the hydraulic pressure is simultaneously applied to three hydraulic cylinders of the rear cylinder unit 22 so that all the piston rods 23 are moved forward. Move to. At the same time as the forward stroke of the piston rod 23 ends, the rear trigger 29 contacts the rear stopper 31 and pulls the control rod 27 from the switching valve 22a. At this time, the switching valve 22a is the rear cylinder unit. The hydraulic pressure applied to the hydraulic cylinder of (22) is released, and hydraulic pressure is applied to the three hydraulic cylinders of the front cylinder unit 21 one by one in order to advance the three piston rods 23 one by one.

Each time one piston rod 23 moves backward, the drive frame 25 coupled to the piston rod 23 and the slats 13 coupled to the drive frame 25 move backward. Thus, the slats 13 retreat. Therefore, the reversal of the slats 13 is performed in three stages. When the forward drive frame 25 finally moves backward, the forward stroke ends and the front trigger 28 fixed to the lower part of the forward drive frame 25 contacts the front stopper 30 to control rod 27. ) Is pushed toward the switching valve 22a. At this time, the switching valve 22a releases the hydraulic pressure applied to the hydraulic cylinder of the front cylinder unit 21, applies hydraulic pressure to the hydraulic cylinder of the rear cylinder unit 22, Advance the piston rod 23 simultaneously.

In this case, of course, the forward movement of the piston rod 23 and the slat 13 made at the same time is slow and the backward movement of the piston rod 23 and the slat 13 made of three steps is fast.

In the case of unloading cargo, when the hydraulic circuit is changed by the operation of a control valve (not shown), the front cylinder unit 21 and the rear cylinder unit 22 operate in the opposite way to the case of loading the cargo.

The van box of the present invention has a cargo moving floor system configured to automatically move cargo as described above, so it is easy to load and unload cargo, and in particular, to unload bulk cargo such as grain, coal, compressed garbage, etc. The operation is very easy, so it is possible to transport bulk cargo as a van truck.

In the present specification, only one embodiment of the present invention is described, but various modifications can be made within the scope of the technical idea of the present invention. For example, even if the hydraulic cylinder of the rear cylinder unit 22 is constituted by the double-acting cylinder actuated by double acting without installing the front cylinder unit 21, the same effect can be obtained, and the front cylinder unit 21 and the rear The hydraulic cylinders of the cylinder unit 22 are all constituted by double-acting cylinders acting as double-acting, thus exhibiting the same effect. In addition, the hydraulic cylinder, the piston rod 23, the connector 24 and the drive frame 25 of the front cylinder unit 21 and the rear cylinder unit 22 of the floor driving device are respectively composed of two or four slats ( 13) When two or four or more of them return to work in a combination of two or more than four steps to achieve the same effect. These modifications are obvious to those of ordinary skill in the art and should be said to fall within the scope of the present invention.

Claims (5)

A van box mounted on a van truck and comprising a front wall, two side walls, a ceiling wall, a rear wall formed with a door, and a floor of an inner floor, which constitutes the floor of the van box, and is supported by the vehicle body of the van truck. A plurality of guide rails 11 which are fixed to the front and rear direction at a predetermined interval on the transverse support 10 and the transverse support 10 of the drive frame 25 and the driving shoe 26 are arranged and operated. ), A cargo movement consisting of a plurality of sliding bearings 12 fixed on the guide rails 11 and slats 13 installed on the guide rails 11 and the sliding bearings 12 so as to move forward and backward. Floor; The frame assembly 20, which is supported by the vehicle body of the van truck, has a width approximately equal to the width of the floor, a cylinder unit installed in the frame assembly 20, and three piston rods 23 connected to the cylinder unit. The connector 24 is installed in each of the three piston rod 23 in different positions, the drive frame 25 installed in the transverse direction on each of the three connector 24, each of the drive frame 25 A van box, comprising a floor driving device, the floor driving device comprising a driving shoe 26 coupled to the slats of the cargo moving floor at a predetermined interval and coupled to the slat 13 of the cargo moving floor. 2. The sliding bearings 12 of the cargo moving floor are arranged in a narrow space at the front and rear portions of the floor which are relatively heavily loaded, and at wide intervals in the central portion which are relatively lightly loaded. Van box configured cargo moving floor system characterized in that. The cylinder unit of the floor driving apparatus is installed at the front of the frame assembly 20, and the three cylinders are installed at the rear of the front cylinder unit 21 to which the three hydraulic cylinders are coupled, and at the rear of the frame assembly 20. It consists of a rear cylinder unit 22 in which a cylinder and one switching valve 22a are coupled, and both ends of the three piston rods 23 are pistons of the hydraulic cylinders of the front cylinder unit 21 and the rear cylinder unit 22. Van box configured with a cargo moving floor system, characterized in that connected with. According to claim 1, the three connector 24 of the floor drive device is provided on the piston rod 23 so as to fall in the longitudinal direction by the interval between the transverse center line of the drive frame 25, each drive frame ( The driving shoe 26 coupled to 25 is spaced at regular intervals by the widths of the three slats 13, so as to shift the driving shoe 26 of the adjacent driving frame 25 by the width of one slat 13. Van box configured with a cargo moving floor system, characterized in that arranged. The hydraulic cylinder, piston rod 23, connector 24, and drive frame 25 of the front cylinder unit 21 and the rear cylinder unit 22 of the floor driving apparatus according to any one of claims 1 to 4 Two or more, respectively, the van box configured to move the cargo floor system, characterized in that the slats 13 to operate in two or four stages or more by forming a combination of two or four or more during the return movement .