KR102459334B1 - Pallet transfer apparatus for container of lorry - Google Patents

Abstract

The pallet transfer device for a cargo vehicle loading box according to the present invention includes a base plate having first and second entry and exit ports formed on the front and rear sides of the loading box of a cargo vehicle, and a plurality of first guides installed between the first and second entry and exit ports. A rail unit, and a pallet loading unit installed on the lower side of the base plate and connected to the first and second inlet/outlets to load pallets;
A conveyor unit installed between the first guide rail parts and transporting the cargo loaded on the pallet in the loading box to load or unload the cargo into the loading box;
and first and second pallet elevating units respectively installed at the first and second inlet and outlet ports for loading and unloading pallets to and from the pallet loading unit.

Description

Pallet transfer apparatus for container of lorry

The present invention relates to a pallet transport device, and more particularly, to a pallet transport device for a loading box of a truck which is installed in a loading box of a truck and can move cargo or a pallet loaded with cargo in the loading or unloading direction. .

In general, in order to transport cargo using a freight car, the cargo is loaded on a pallet using equipment or loaded into a loading box using a separate loading conveyor.

In this way, in a state in which the cargo is loaded on the loading box of the freight car, the light cargo that the worker can carry is moved and loaded by the worker, and the unloading of the light cargo is carried out after moving it to the edge of the loading box by the worker.

The loading and unloading of these cargoes places a great physical burden on the workers, and it is difficult to improve the working efficiency. In addition, there was a problem in that the injury of the worker, damage to the cargo, etc. frequently occurred due to the carelessness of the worker during the operation.

In consideration of this point, Japanese Patent Laid-Open Nos. Hei 8-108788 and So 63-263145 disclose a device for loading pallets in two rows in a total of four upper and lower layers, and Japanese Patent Laid-Open No. So 60-209438 describes a pallet stacking device in which a fitting-type movable load holding device is installed on a moving body that moves forward, backward, left, right, and up and down three-dimensionally by means of a vertical multi-joint type moving mechanism that can be turned in the horizontal direction. In Utility Model Publication Nos. 6-39573, 7-18972, 64-41451, and 6-67170 in Utility Model Publications, the technical configuration of the device for moving the pallet is posted.

However, such a conventional device has a problem in that the movement of the load is complicated when moving or stacking the load, and the load is an obstacle to the movement of the support. That is, when the user loads the cargo into the loading box of the vehicle, in order to move the cargo inside the loading box, there is a problem in that the user needs to get on the vehicle loading box and drag or pull the cargo to the inside of the loading box.

In particular, when a user rides on the loading box of the vehicle and drags or pulls the cargo to the inside of the loading box, the movement becomes difficult due to friction between the cargo and the inside cover of the loading box, and there is a problem in that the cargo is damaged.

Korean Patent No. 10-0680599 discloses a cargo transfer device for a cargo vehicle loading box, Korean Patent Publication No. 2020-0091589 discloses a pallet transfer device, and Korean Utility Model No. 20-0309672 discloses a truck loading box The structure is posted. Republic of Korea Patent No. 10-1549365 discloses an internal cargo moving device of the loading box.

Japanese Patent Laid-Open No. 60-209438 Japanese Patent Laid-Open No. Hei 8-108788 Korean Patent Publication No. 2020-0091589 Republic of Korea Patent No. 10-1549365

The present invention is to solve the above-described problems, and it is possible to sequentially supply pallets for loading cargo in the loading box of a cargo vehicle, and to sequentially load or unload cargo according to the unloading order. An object of the present invention is to provide a pallet transfer device for

Another object of the present invention is to provide a pallet transfer device for loading boxes, so that pallets can be loaded and unloaded on the lower side of the loading box, so that the management of the pallets is easy.

In order to achieve the above object, the pallet transfer device for a loading box of a freight vehicle of the present invention is installed between a base plate having first and second inlet/outlets formed on the front and rear sides of the loading box of a freight vehicle, and the first and second draw-in/out outlets. A plurality of first guide rail parts, and a pallet loading part installed on the lower side of the base plate and connected to the first and second inlet and outlet for loading pallets;
A conveyor unit installed between the first guide rail parts and transporting the cargo loaded on the pallet in the loading box to load or unload the cargo into the loading box;
It is characterized in that it is provided with the first and second pallet lifting units for loading and unloading the pallet to the pallet loading unit respectively installed in the first and second inlet and outlet.
In the present invention, the first pallet elevating unit is installed on the side of the first inlet and outlet, and is elevated from the pallet transfer height of the pallet loading unit to the chain height of the conveyor unit by the first elevating cylinder installed on the vehicle body. A first elevating frame and a first auxiliary conveyor installed on the first elevating frame,
The second pallet elevating unit is installed on the side of the second inlet and outlet, and a second elevating frame that is elevated from the pallet transfer height of the pallet loading unit to the chain height of the conveyor unit by a second elevating cylinder installed on the vehicle body; , and a second auxiliary conveyor installed on the second lifting frame.
The pallet loading part is installed in the longitudinal direction on the bottom surface of the pallet transport passage part and the pallet transport passage part installed on the lower part of the base plate between the first and second pallet lifting units, and a plurality of guide rollers are installed A guide frame is provided.
First and second stopper units for individually supplying pallets to the first and second pallet transfer units, respectively, are installed on the inlet side and the outlet side of the pallet transfer passage.

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Pallet transfer device for loading box of a freight car according to the present invention can load and unload by transporting pallets for loading cargo in the loading box. It can be loaded and unloaded as a unit, so it is easy to load cargo and manage pallets.

In addition, the pallet transfer device for the loading box of the truck minimizes the cargo transportation work inside the loading box when loading and unloading the cargo in the loading box, thereby greatly reducing the fatigue caused by the transportation of the cargo by reducing the number of work hours of the operator or the operator. By installing a support on the loaded pallet, it is possible to prevent the cargo from collapsing during movement.

1 and 5 are perspective views showing a state in which the pallet transfer device for loading boxes according to the present invention is installed in a freight car;
2 is a cross-sectional view of a pallet transport device for a freight vehicle according to the present invention;
Figure 3 is a partially cut-away perspective view showing an extracting the pallet transport device for loading boxes according to the present invention;
Figure 4 is a perspective view showing an extract of the main part of the pallet transport device for loading boxes according to the present invention,
Figure 6 is a perspective view of a pallet applied to the pallet transport device for loading boxes according to the present invention.

The present invention relates to a pallet transfer device for a freight vehicle, and an embodiment thereof is shown in FIGS. 1 to 3 .

Referring to the drawings, the pallet transfer device for a freight vehicle according to the present invention can automatically move the cargo within the loading box during loading and unloading of the cargo box, and insert and withdraw the used pallet into the space below the cargo truck loading box. It has a structure that can

A plurality of first guide rail units 20 are installed on the base plate 111 of the loading box 110 of the freight vehicle 100 in the longitudinal direction of the pallet transfer device for the freight vehicle. The first guide rail parts 20 are installed at a predetermined distance from each other. And between the first guide rail parts 20, the cargo supported by the first guide rail parts 20 or the pallet 200 on which the cargo is loaded is moved to the loading position of the loading box or unloaded from the loading position. A conveyor unit 30 for moving to a position is installed.

And on the lower side of the base plate 111, as shown in FIG. 2, a pallet loading part 50 for moving the pallet from the inside to the outside of the loading box 110 is installed. On the inlet side and the outlet side of the conveyor unit 30, the pallet 200 is moved from the pallet loading unit 50 to the conveyor unit 30, or from the conveyor unit 30 to the pallet loading unit 50. , 2 pallet lifting units 70 and 80 are installed, respectively.

The configuration of the pallet transport apparatus for a freight vehicle according to the present invention configured as described above will be described in more detail with reference to an embodiment installed in a freight transport tower vehicle.

A rear door 101 is installed on the rear side of the loading box for the truck, that is, the loading box 110 of the cargo truck 100 , and at least one side door 102 is installed on the side. In addition, first guide rail parts 20 are installed in the bottom part of the loading box 110 , that is, the base plate 111 in the longitudinal direction, and the first guide rail parts 20 are installed to be spaced apart from each other by a predetermined interval in the width direction. . It is preferable to reduce the frictional force caused by the movement of the pallet 200 by forming the first guide rail part 20 in a trapezoidal or triangular cross section so that the lower surface of the pallet 200 can be moved smoothly in a supported state. do. As shown in FIG. 3 , a ball flanger anti-friction pad for reducing friction with the pallet 200 and a small guide roller 21 are installed on the first guide rail part 20 installed on the base plate 111 . can be The first guide rail part 20 is not limited by the above-described embodiment, and it is possible as long as it has a structure capable of minimizing frictional force when the pallet 200 loaded on the base plate 111 moves.

And first and second inlet and outlet ports 112 and 113 for supplying and discharging the pallet 200 to the pallet stacking unit 50 are formed on both ends of the base plate 111 .

The conveyor unit 30 is installed between the first guide rail parts 20 to move the pallet 200 on which the cargo is loaded. Preferably, they are installed on both sides in the longitudinal direction of the loading box 110 . do.

The conveyor unit 30 includes a head sprocket 31 and a rear sprocket 32 installed on shafts respectively supported on the sides adjacent to the first and second inlet and outlet 112 and 113 of the base plate 111, and the A head sprocket 31, a chain 33 caught on the rear sprocket 32, and a driving motor (not shown) for driving a selected one of the head sprocket 31 and the rear sprocket 32 are provided. At least two or more of the head sprocket 31 and the rear sprocket 32 may be installed, respectively.

The upper portion of the chain 33 caught on the head sprocket 31 and the rear sprocket 32 of the conveyor unit 30 is installed relatively higher than the height of the first guide rail 20 installed on the base plate 111 . to be in contact with the lower surface of the pallet 200 . To this end, a chain guide 35 is installed on the lower surface of the chain 33 . The width of the chain guide 35 is narrower than the width of the chain 33 . In addition, an elastic member 36 for elastically biasing the chain guide 35 upward is installed on the lower surface of the chain guide 35 .

Although not shown in the drawings, coupling protrusions are formed on the chain 33 at predetermined intervals, and coupling grooves are formed on the lower surface of the pallet 200 so that they can be moved in a coupled state. It is preferable that the coupling protrusion and the coupling groove are not deep enough so that coupling can be separated when the chain is moved. A plurality of the conveyor units 30 may be installed in the longitudinal direction of the loading box as shown in FIG. 1 .

And, the conveyor unit 30 has been described as a chain conveyor, but is not limited thereto, and may be formed of a plate conveyor, a roller conveyor, or the like.

The pallet loading part 50 installed under the base plate 111 is a pallet transport passage part 51 installed in parallel with the lower surface of the conveyor unit 30 and the bottom surface of the pallet transport passage part 51 . The pallet transport conveyor 52 is installed. The pallet transport conveyor 52 includes a guide frame 52a installed in the longitudinal direction on the pallet transport passage 51, a plurality of guide rollers 52b and a guide roller 52b installed on the guide frame 52a. ) for driving the driving unit (not shown) may be installed. However, the present invention is not limited thereto, and a belt conveyor or a chain conveyor capable of transporting the pallet 200 may be installed in the pallet transfer passage 51 . When a chain conveyor is installed, it is preferable to install it in parallel with the conveyor unit 30 for transport of the pallet 200 .

And first and second stopper units ( 90) and 95 are installed. The first and second stopper units 90 and 95 are the first and second stopper units that are drawn in and drawn out from the edge of the pallet loading part 50, respectively, to stop the movement of the moving pallet 200 or to be supplied. It includes stoppers 91 and 96, and first and second actuators 92 and 97 for elevating the first and second stoppers 91 and 96. The first and second stopper units 90 and 95 are not limited by the above-described embodiment, and any structure capable of temporarily stopping the moving pallet 200 is possible.

The first pallet elevating unit 70 is installed on the side of the first inlet and outlet 112, and from the pallet 200 conveying height of the pallet loading unit 50 by the first elevating cylinder 71, the conveyor It has a first lifting frame 72 that is lifted to the chain height of the unit (30). And a first auxiliary conveyor 73 is installed in the first elevating frame 72 to move the pallet or the pallet 200 loaded with cargo to the conveyor unit 30 side. The first auxiliary conveyor 73 may be made of a belt conveyor or a chain conveyor driven by a driving unit. In addition, the first elevating cylinder 71 is fixed to the vehicle body, and guide rods 74 parallel to the first elevating cylinder 71 may be installed in order to stably elevate the first elevating frame 72 .

The second pallet elevating unit 80 is for lowering the pallet 200 moved by the conveyor unit 30 and supplying it to the pallet loading unit 50, and the first pallet elevating unit 70 and substantially is the same as The second pallet elevating unit 80 is installed on the side of the second inlet and outlet 113, and the pallet 200 of the pallet loading unit 50 is transferred by the second elevating cylinder 81 installed in the vehicle body. and a second elevating frame 82 that elevates from the height to the chain height of the conveyor unit 30 . And a second auxiliary conveyor 83 is installed in the second lifting frame 82 to have a structure capable of moving the pallet 200 or the pallet 200 loaded with cargo to the conveyor unit 30 side.

The first and second elevating cylinders 71 and 81 may be selected from a jack screw, a pneumatic cylinder, or a hydraulic cylinder.

Meanwhile, as shown in FIG. 5 , the conveyor unit 30 and the first guide rail 20 may be installed in a direction perpendicular to the longitudinal direction of the loading box or in a predetermined inclined direction. In addition, a lift 300 for elevating the cargo as shown in FIG. 1 may be further installed on the rear side of the loading box 110 .

And the pallet 200 for loading the cargo may be further provided with a cargo support 210 as shown in FIG. Telescopic first and second support bars 212 and 213 which are rotatably installed on both sides of the pallet 200 that can be coupled and detached to the inlet groove 211 formed on the upper surface of the cargo support 210 and are telescopic; A connecting bar 214 connecting the ends of the first and second support bars 212 and 213 is provided.

In addition, auxiliary support bars 215 and 216 that are rotatably installed and coupled to each other during deployment are installed on the telescopic first and second support bars 212 and 213, respectively. The cargo support installed on the pallet 200 is not limited by the above-described embodiment, and has a structure capable of preventing collapse of the cargo loaded on the pallet 200 .

The operation of the pallet transfer device for a loading box of a freight vehicle according to the present invention configured as described above will be described as follows.

In order to load the cargo for transport, the pallet 200 on which the cargo is loaded is loaded while the first lifting frame 72 of the first pallet lifting unit 70 is being lifted. And by driving the first auxiliary conveyor 73 as well as driving the conveyor unit 30, the chain 33, that is, the chain 33 exposed from the upper surface of the base plate 111 in the inner direction of the loading box (110) make it move

In this state, by driving the first auxiliary conveyor 73 to move the loaded pallet 200 to the chain 33 side of the conveyor unit 30, by the chain 33 and the first guide rail part 20 It moves to the inside of the loading box (110). In this way, the cargo loaded on the pallet 200 is sequentially moved to the inside of the loading box 110 . The cargo moved by the chain 33 and the first guide rail part 20 of the conveyor unit 30 is moved to the second pallet lifting unit 80. At this time, the second pallet lifting unit 80 The second auxiliary conveyor 83 is operated to move the cargo moved by the conveyor unit 30 to the inside of the loading box 110 .
When the pile stacked on the pallet 200 is loaded in the loading box 110 as described above, the pallet 200 does not move inside the loading box of the cargo. In this case, the chain guide elastically supported by the elastic member 36 ( 35) is pressed, a slip is generated between the chain 33 that moves the pallet 200 and the lower surface of the pallet 200. Accordingly, the pallet 200, which is loaded with cargo and moved to the loading position, does not move any more. And the subsequent cargo is moved and loaded in the same manner as described above.

In this process, since the cargo loaded on the pallet 200 is supported by the unfolded cargo support 210, collapse of the loaded cargo can be minimized during movement.

On the other hand, in order to move the pallet 200 loaded on the pallet loading unit 50 to the upper part of the first auxiliary conveyor 43 by the first pallet lifting unit 70, the first lifting cylinder 71 is operated. The first auxiliary conveyor 73 is lowered by lowering the first elevating frame 72 . Then, the first actuator 92 of the first stopper unit 90 is operated to lower the first stopper 91 . In this state, one pallet 200 waiting on the pallet loading unit 50 is moved to the upper part of the first auxiliary conveyor 41 .

This movement is made by the pallet transfer conveyor (52). When the supply of one pallet 200 is completed, the first stopper 91 of the first stopper unit 90 rises to stop the transfer of the subsequent pallet 200 . At this time, the pallet transfer conveyor 52 is also stopped driving.

In this state, as the first elevating frame 72 is raised by the first elevating cylinder 71, the pallet 200 installed on the first auxiliary conveyor 73 rises to the first inlet/outlet 112. . Loading the cargo on the elevated pallet 200 as described above, and loading the cargo on the loading box 110 in the same way as described above. And the unloading of the cargo is performed in the reverse direction of the above-described method.

On the other hand, the loading of the pallet 200 by the pallet loading unit 50 in the state in which the cargo is unloaded may be made on the side of the first pallet transfer unit 70 or the second pallet transfer unit 80 .

The recovered pallet or the pallet 200 on which the cargo is unloaded is placed on the raised first auxiliary conveyor 73 or the second auxiliary conveyor 83 . This operation may be made by moving the pallet 200 by a conveyor unit, and may be performed by a driver or an operator.

When the loading of the pallet 200 on the first auxiliary conveyor 73 is made, the first lifting cylinder 71 is operated to lower the first lifting frame in which the first auxiliary conveyor 73 is installed, the first auxiliary conveyor The same height as the upper surface of (73) and the guide frame (52a) of the pallet loading unit (50) can be maintained. In this state, the first stopper 91 of the first stopper unit 90 is lowered, and the first auxiliary conveyor 73 is driven to supply the pallet 200 to the pallet loading unit 50 .

As described above, the pallet transfer device for the loading box of a freight vehicle according to the present invention uses the first and second pallet lifting units 70 and 80 and the conveyor unit 30 in loading the cargo or the pallet 200 on which the cargo is loaded. Therefore, it can be moved for loading and unloading, so it is possible to reduce the number of work hours due to loading and unloading of cargo, and it is possible to prevent damage to the health of workers during loading and unloading of cargo.

Although the present invention has been described with reference to the embodiment shown in the drawings, which is only exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims (5)

It is installed between the base plate 111 in which the first and second inlet and outlets 112 and 113 are formed on the front and rear sides of the loading box 110 of the freight vehicle, and the first and second inlet and outlets 112 and 113. A plurality of first guide rail parts 20 and a pallet loading part installed on the lower side of the base plate 111 and connected to the first and second inlet and outlet ports 112 and 113 to load the pallet 200 (50) and
A conveyor unit 30 installed between the first guide rail parts 20 and for transporting the cargo loaded on the pallet 200 in the loading box 110 to load or unload the cargo into the loading box 110,
First and second pallet elevating units 70 and 80 for loading and unloading the pallet 200 to and from the pallet loading unit 50 respectively installed in the first and second inlet and outlet 112 and 113 are installed Pallet transfer device for the loading box of a freight vehicle, characterized in that it is provided. The method of claim 1,
The first pallet elevating unit 70 is installed on the side of the first inlet and outlet 112, and the pallet 200 of the pallet loading unit 50 is transferred by the first elevating cylinder 71 installed in the vehicle body. A first elevating frame 72 that is elevated from the height to the height of the chain 33 of the conveyor unit 30, and a first auxiliary conveyor 73 installed in the first elevating frame 72,
The second pallet elevating unit 80 is installed on the side of the second inlet/outlet 113, and the pallet 200 of the pallet loading unit 50 is transported by the second elevating cylinder 81 installed in the vehicle body. A second lifting frame 82 that is lifted from the height to the height of the chain 33 of the conveyor unit 30, and a second auxiliary conveyor 83 installed on the second lifting frame 82. Pallet transfer device for loading boxes of freight cars. The method of claim 1,
The pallet loading part 50 includes a pallet transport passage 51 installed under the base plate 111 between the first and second pallet lifting units 70 and 80, and the pallet transport passage part ( 51) to be installed in the longitudinal direction on the bottom surface, a guide frame (51a) in which a plurality of guide rollers (52b) are installed is provided,
First and second stopper units 90 for individually supplying the pallets 200 to the first and second pallet transfer units 70 and 80, respectively, on the inlet and outlet sides of the pallet transfer passage 51 ( 95), a pallet transfer device for the loading box of a freight vehicle, characterized in that it is installed. The method of claim 1,
The conveyor unit 30 includes a head sprocket 31, a rear sprocket 32, and the head sprocket 31 installed on the first and second inlet and outlet 112 and 113 sides of the base plate 111, respectively. A chain 33 caught on the rear sprocket 32, and a driving motor for driving a selected one of the head sprocket 31 and the rear sprocket 32,
The upper chain 33 caught on the head sprocket 31 and the rear sprocket 32 is installed relatively higher than the height of the first guide rail part 20 installed on the base plate 111, so that the pallet 200 is installed. A chain guide 35 is installed on the lower surface of the chain 33 so as to be in contact with the lower surface of Pallet transfer device for loading boxes of trucks, characterized in that it biases. The method of claim 1,
A pallet transfer device for a loading box of a freight vehicle, characterized in that a cargo support 210 for preventing the loaded cargo from collapsing is installed on the pallet 200 loaded on the loading box 110 or the pallet loading unit 50.

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