Lifting system and a carrier element for such a lifting system

Abstract

A lifting system for lifting a separate pallet with a heavy load is disclosed, the lifting system including two or more carrier elements and a suspension device in the form of a chain sling or a strap sling with double as many fastening ends as the number of carrier elements, wherein each of the carrier elements includes a stiff supporting beam and a distance element and is arranged so that two of the fastening ends of the suspension device can be fastened to the supporting beam in opposite ends thereof, and wherein the distance element is dimensioned and mounted onto the supporting beam in such a way that it prevents displacement of the carrier element relative to a pallet in the longitudinal direction thereof, when the carrier element is mounted transversely through the pallet. Furthermore, a carrier element for such a lifting system is disclosed.

Claims

1. A lifting system for lifting a pallet with a heavy load, the lifting system comprising: at least two carrier elements each having a stiff supporting beam and a distance element to be arranged through an interior of the pallet between two neighboring supporting blocks and transversely to longitudinal upper and lower planks of the pallet, and a suspension device in the form of a chain sling or a strap sling having twice as many fastening ends as the number of carrier elements, wherein each of the carrier elements is arranged such that two of the fastening ends of the suspension device can be fastened to the supporting beam in opposite ends thereof, and wherein the distance element is dimensioned and mounted onto the supporting beam in such a way that it prevents displacement of the carrier element relative to the pallet in the longitudinal direction thereof when the carrier element is mounted transversely through the interior of the pallet and transversely to the upper supporting planks of the pallet wherein the pallet is of the type comprising longitudinal upper and lower planks, being connected via different pairs of neighboring supporting blocks and the supporting beam of each carrier element and its distance element, are being adapted both to be arranged through the interior of the pallet between the different pairs of neighboring supporting blocks and transversal to the upper and lower planks.

2. The lifting system according to claim 1, wherein the supporting beams are provided with a lifting bolt in each of their ends, and each of the fastening ends of the suspension device is provided with a hook, which is designed to engage with such a lifting bolt.

3. The lifting system according to claim 1, wherein the suspension device is dimensioned to carry a load of 500 kg to 2000 kg.

4. The lifting system according to claim 1, wherein the lengths of the chains or straps are adjustable.

5. A carrier element for a lifting system for lifting a pallet comprising: a stiff supporting beam and a distance element and being configured to be arranged such that two fastening ends of a suspension device in the form of a chain sling or a strap sling can be fastened to the supporting beam in opposite ends thereof, the carrier element arranged through an interior of the pallet between two neighboring supporting blocks and transversely to longitudinal upper and lower planks of the pallet, and, wherein the distance element is dimensioned and mounted onto the supporting beam in such a way that it prevents displacement of the carrier element relative to a pallet, to be lifted, in the longitudinal direction thereof wherein the pallet is of the type comprising longitudinal upper and lower planks, being connected via different pairs of neighboring supporting blocks and the supporting beam of each carrier element and its distance element, are being adapted both to be arranged through the interior of the pallet between the different pairs of neighboring supporting blocks and transversal to the upper and lower planks.

6. The carrier element according to claim 5, wherein the distance element is designed as a distance bracket mounted onto the supporting beam.

7. The carrier element according to claim 5, wherein the supporting beam and/or the distance element are substantially made from a metal.

8. The carrier element according to claim 7, wherein the metal within the supporting beam and/or the distance element is hot-galvanized.

9. The carrier element according to claim 5, wherein the dimensions of the distance element are the distance between two neighboring supporting blocks of a standard EUR pallet, so that the carrier element can just be placed transversely through such a pallet.

10. The carrier element according to claim 5, wherein the supporting beam is provided with a lifting bolt in each end for engagement with a hook of one of the fastening ends of the suspension device.

11. The carrier element according to claim 5, wherein the underside of the supporting beam is beveled at both ends of the supporting beam.

Description

THE DRAWINGS

(1) In the following, a few exemplary embodiments of the invention are described in more detail with reference to the drawings, of which

(2) FIG. 1 illustrates a lifting system according to an embodiment of the invention carrying a pallet with a load,

(3) FIG. 2 illustrates the same lifting system without the pallet and the load,

(4) FIG. 3 is a side view of the lifting system with pallet and load shown in FIG. 1,

(5) FIG. 4 is an end view of the lifting system with pallet and load shown in FIG. 1,

(6) FIG. 5 is a top view of the lifting system with pallet and load shown in FIG. 1,

(7) FIG. 6 illustrates a carrier element of a lifting system according to an embodiment of the invention,

(8) FIG. 7 is a top view of the same carrier element, and

(9) FIG. 8 illustrates partly a carrier element according to another embodiment of the invention being mounted within a pallet with a load.

DETAILED DESCRIPTION OF THE INVENTION

(10) FIGS. 1 and 2 illustrate a lifting system 1 according to an embodiment of the invention, with and without a pallet 5 with a load 6, respectively.

(11) In the illustrated embodiment, the suspension device 2 is constituted by a 4-part chain sling 2 with hooks 3 at the open ends of the chains. The two carrier elements 4 each consists of a distance bracket 8 and a supporting beam 7, at each end of which is mounted a transverse lifting bolt 9, with which the hooks 3 of the suspension device are in engagement.

(12) As it can be seen, the lifting system 1 is used by mounting the carrier elements 4 transversely through the pallet 5 under the “load layer” thereof, after which the hooks 3 of the suspension device (2) are fastened to the ends of the supporting beams 7 of the carrier elements 4, and the pallet 5 with the load 6 can be lifted by means of a crane (not shown) having hold of the suspension device 2.

(13) The distance brackets 8, which are arranged so that they are horizontal when the supporting elements 4 are mounted within the pallet 5, are dimensioned so that the carrier elements 4 can just pass between the supporting blocks of the pallet 5. This means that the carrier elements 4 cannot be displaced in the longitudinal direction of the pallet 5 and, therefore, do not need any adjustment to be optimally positioned, as long as they are correctly orientated.

(14) FIGS. 3-5 illustrate the lifting system 1 with more details as seen from different angles, whereas FIGS. 6 and 7 show more details of the carrier element 4.

(15) FIG. 8 illustrates partly a carrier element 4 according to another embodiment of the invention being mounted within a pallet 5 with a load 6.

(16) In this embodiment, the underside of the supporting beam 7 is bevelled 10 at both ends of the supporting beam 7 for facilitating the mounting of the carrier element 4 within the pallet 5.

LIST OF REFERENCE NUMBERS

(17) 1. Lifting system 2. Chain sling 3. Hook 4. Carrier element 5. Pallet 6. Load 7. Supporting beam 8. Distance bracket 9. Lifting bolt 10. Bevelled underside of supporting beam