DE202012007807U1 - Device for unloading containers - Google Patents

Abstract

Device (10) for unloading containers (48), with at least one belt track device for receiving a container (48), the belt track device having an endlessly connected belt strap (20) running over carrier rollers (18) and deflection rollers (14, 16), and a positioning device for vertical height adjustment of one end of the belt track device.

Description

The invention relates to a device for unloading containers, in particular for unloading a ground transport vehicle.

In particular at airports, but also at other freight hubs, such as container ports or freight yards, a large number of containers are being transhipped, loaded and unloaded. Due to the size and weight of loaded containers technical aids are used for this purpose. The transport of containers from one means of transport to the next takes place on the ground using special ground transport vehicles.

Occasionally, it is necessary to temporarily store loaded containers at the terminal, such as in the case of snow chaos or when a ground transport vehicle is urgently needed elsewhere. However, unloading a loaded container from a ground transport vehicle is a safety-critical and time-consuming process.

The object of the invention is therefore to facilitate the unloading of containers, in particular of a ground transport car.

This object is achieved by a device having the features of claim 1. Advantageous and expedient embodiments of the device according to the invention are specified in the subclaims.

The inventive device for unloading containers comprises at least one Gurtbahneinrichtung for receiving a container. The Gurtbahneinrichtung has an over idlers and pulleys running, endlessly connected webbing. The unloading device according to the invention further comprises a positioning device for vertical height adjustment of one end of the Gurtbahneinrichtung.

The invention is based on the recognition that the unloading of a loaded container from a ground transport vehicle or from another elevated storage surface can be substantially facilitated if the container performs a controlled movement along a predetermined path during unloading. This is achieved with the device according to the invention, on whose unilaterally increased Gurtbahneinrichtung the container can roll down defined. Apart from the safety advantages that offers the unloading device according to the invention over the previous, not readily controllable unloading, the container itself is spared by the rolling.

In order to enable simple operation of the positioning device, this preferably has a knee joint mechanism, which is preferably adjustable by a lever.

So that when unloading the container of the ground transport vehicles and the storage device according to the invention are not undesirable from each other, which could result in a dangerous situation, a coupling device for connecting the unloading device with the ground transport vehicle, especially with a trailer hitch of the ground transport vehicle, makes sense.

When unloading the container, it may be desirable to control the rolling process in its speed. According to a particular aspect of the invention, the unloading device for this purpose has a brake for braking the webbing.

With regard to a user-friendly operation and an effective power transmission, a brake pedal is available for actuating the brake. To make handling even more flexible, several brake pedals can be provided at different locations.

For proper operation of the Gurtbahneinrichtung the webbing should be taut. This can be accomplished with a tensioning station for tensioning the webbing, which has at least one pretensioned by a tension spring against the webbing tensioning wheel. Preferably, the tensioning wheel also serves as a deflection roller.

According to one embodiment of the invention, the webbing can also be moved by machine to support the Abrollvorgangs on the unloading device according to the invention. The power transmission to the webbing is best done via a drive station having a drive shaft and at least one drive wheel. The drive wheel preferably serves at the same time as a deflection roller.

For the belt drive itself, an embodiment is advantageous in which the drive shaft has a shaft journal which is coupled to a drive motor. The drive motor is preferably a geared motor mounted on the shaft journal.

The invention also provides a device arrangement with a ground transport vehicle for transporting a loaded container and an unloading device according to the invention, in which the unloading device is coupled to the ground transport vehicle.

The invention will now be described by way of a preferred embodiment with reference to the accompanying drawings. In the drawings show:

1 a perspective view of an inventive device for unloading containers;

2 a side view of essential parts of a device according to the invention;

3 a top view of the parts of 2 ; and

4 the coupling of an unloading device according to the invention to a ground transport vehicle.

In the figures is a device 10 shown, with a container from an elevated position, in particular from a ground transport car, can be unloaded. The unloading device 10 consists essentially of a frame 12 , which has several rotatably mounted rollers 14 . 16 . 18 carries, and at least one endlessly connected webbing 20 in a webbing guide over the rollers 14 . 16 . 18 running. Rollers stored in rolling bearings 14 and 16 are pulleys, which are also stored in bearings rollers 18 represent carrying rollers. Together with the webbing 20 and the webbing guide, they form a Gurtbahneinrichtung.

In the illustrated embodiment, two Gurtbahneinrichtungen are arranged parallel to each other and through the frame 12 interconnected, wherein between the two Gurtbahneinrichtungen a protective grid 22 is provided.

At a rear end of the Gurtbahneinrichtungen are tensioning stations for tensioning the straps 20 intended. The axes 24 on which the rear pulleys 14 are stored, are in the longitudinal direction of the device 10 biased. These are the axes 24 each to a longitudinally displaceable slide bar 26 coupled, in turn, with one end of a tension spring 28 (in 1 hidden) is connected. The tension spring 28 is on a tension rod 30 raised and supported with its other end to a stop 32 from here by a crossbeam of the frame 12 is formed. Using the tension springs 28 So are the rear pulleys 14 against the webbing 20 pressed. Because the rear pulleys 14 on separate axes 24 are stored, the tensioning stations tension the straps 20 individually and independently. To protect the user are at the clamping stations shaped sheets 34 attached as hand protection.

At the opposite front end of the Gurtbahneinrichtungen are the front pulleys 16 designed as drive wheels on a common drive shaft 36 are stored and together form a drive station. The drive shaft 36 itself is stored in pillow block bearings and has a shaft journal projecting on one side 40 to which optionally a drive motor can be coupled, in particular one on the shaft journal 40 attachable geared motor.

If no drive motor is provided, the straps will run 20 in the Gurtbahneinrichtungen on the freely rotatable rollers 14 . 16 . 18 , However, a brake is provided to the straps 20 when they are in motion, decelerate or stop altogether. On both sides of the unloading device 10 are brake pedals 42 mounted, with which the user can selectively apply the brake.

At the frame of the unloading device 10 is also a coupling device 44 attached (see 4 ), which is adapted to the towbars of ground transport vehicles.

The unloading device 10 moreover has a positioning device with a knee-joint mechanism, which is provided by a user when needed by a lever 46 can be adjusted. In this way, that end of the Gurtbahneinrichtungen, on which also the coupling device 44 is attached, lift vertically.

The following is with reference to 4 the functioning of the unloading device 10 described on the basis of a typical use case where a loaded container 48 for temporary storage on squared lumber from a ground transport vehicle 50 should be unloaded.

The unloading device 10 is positioned by the user in the ground transport car 50 brought that they are both in close proximity to each other in an orientation, according to the coupling device 44 the unloading device 10 the trailer hitch 52 of the ground transport car 50 opposite. The user now lifts the coupling-side end of the unloading device 10 in which he uses his foot to lever 46 the knee joint mechanism is actuated in a predetermined direction. The end of the unloading device 10 is raised until the Gurtbahneinrichtungen slightly higher than the loading area of the ground transport car 50 lies.

The unloading device 10 is then so on the ground transport car 50 created that the coupling device 44 in the trailer hitch 52 can be hung. The docking can be done by lateral, on the ground transport car 50 coordinated positioning aids 54 get supported. The hanging itself is limited by operating the lever 46 reaches the knee joint mechanism in the other direction, so that the unloading device 10 opposite the ground transport car 50 something is lowered.

At the other, near the bottom of the unloading device 10 be square, on which the container 48 should be discontinued, placed in position. At the ground transport car 50 becomes the transport lock 56 solved that before sliding down the container 48 prevented. The user now shifts from that of the unloading device 10 distant side of the container 48 on the straps 20 the Gurtbahneinrichtungen. This prevents the user from entering the dangerous unloading area. The container 48 rolls thanks to the freely rotatable carrying rollers 18 and pulleys 14 . 16 automatically on the straps 20 downward. To the container 48 slow down in the rolling process, the user can use one of the two brake pedals 42 actuate.

The rolling process can also by a on the shaft journal 40 plugged gear motor, which serves as the drive wheels front pulleys 16 drives are supported.

This way, the container becomes 48 punctually placed on the squared lumber, ie he is still slightly tilted, because he still has one end on the back of the ground transport car 50 rests. To complete the unloading process, the ground transport car 50 together with the coupled unloading device 10 against the unwinding direction of the container 48 pulled away. The container 48 then lies completely on the square wood.

Uncoupling the unloading device 10 from the ground transport car 50 takes place in the reverse order as described above.

LIST OF REFERENCE NUMBERS

10

unloader

12

frame

14

front pulleys

16

rear pulleys

18

idlers

20

webbing

22

guard

24

axes

26

sliding bar

28

tension spring

30

tension rod

32

attack

34

sheet metal stampings

36

drive shaft

40

shaft journal

42

brake pedal

44

coupling device

46

lever

48

Container

50

Floor trolley

52

trailer hitch

54

positioning aids

56

transport lock

Claims (9)

Contraption ( 10 ) for unloading containers ( 48 ), with at least one Gurtbahneinrichtung for receiving a container ( 48 ), wherein the Gurtbahneinrichtung one on idlers ( 18 ) and pulleys ( 14 . 16 ) running, endlessly connected webbing ( 20 ), and a positioning device for vertical height adjustment of one end of the Gurtbahneinrichtung. Unloading device ( 10 ) according to claim 1, characterized in that the positioning device has a knee joint mechanism, which is preferably by a lever ( 46 ) is adjustable. Unloading device ( 10 ) according to claim 1 or 2, characterized by a coupling device ( 44 ) for connecting the unloading device ( 10 ) with a ground transport vehicle ( 50 ). Unloading device ( 10 ) according to one of the preceding claims, characterized by a brake for braking the webbing ( 20 ). Unloading device ( 10 ) according to claim 4, characterized by at least one brake pedal ( 42 ) for actuating the brake. Unloading device ( 10 ) according to one of the preceding claims, characterized by a tensioning station for tensioning the strap ( 20 ), at least one by a tension spring ( 28 ) against the webbing ( 20 ) biased tensioning wheel, wherein the tensioning wheel preferably at the same time as a deflection roller ( 14 ) serves. Unloading device ( 10 ) according to one of the preceding claims, characterized by at least one drive station which has a drive shaft ( 36 ) and at least one drive wheel, wherein the drive wheel preferably at the same time as a deflection roller ( 16 ) serves. Unloading device ( 10 ) according to claim 7, characterized in that the drive shaft ( 36 ) a shaft journal ( 40 ), which is coupled to a drive motor, wherein the drive motor preferably one on the shaft journal ( 40 ) is mounted geared motor. Device arrangement, with a ground transport vehicle ( 50 ) for transporting a loaded container ( 48 ) and an unloading device ( 10 ) according to one of the preceding claims, wherein the unloading device ( 10 ) to the ground transport car ( 50 ) is coupled.

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