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The invention relates to a lifting device for loads, especially to a suspension lift for vehicles or vehicle parts. Said lifting device comprises load receiving means (14) with at least one longitudinal beam (17) mounted on the load receiving means ( 14) and substantially aligned in the lifting and

The invention relates to a lifting device for loads, especially to a suspension lift for vehicles or vehicle parts. Said lifting device comprises load receiving means (14) with at least one longitudinal beam (17) mounted on the load receiving means ( 14) and substantially aligned in the lifting and lowering direction (S). The device further comprises at least one guide element (15) mounted on the base frame (5) for laterally guiding the longitudinal beam and thus the load receiving element (14) and a lifting gear (19) for performing the lifting and lowering movement of the load receiving means (14). The aim of the invention is to provide a lifting device that facilitates an ample lifting/lowering movement of the load while considerably reducing the overall height of the lifting device. To this end, the longitudinal beam (17) is subdivided in at least two sections (17a, 17b, 17c) in the manner of a link chain. Said sections are interlinked so as to be foldable transversally to the lifting and lowering direction. In the lifted state of the load receiving means ( 14 ), the upper sections (17b, 17c) of the longitudinal beam (17) are folded and in the lowered state of the load receiving means (14) the upper sections (17b, 17c) of the longitudinal beam (17) are unfolded.

대표청구항 ▼

The invention claimed is: 1. A vehicle or vehicle part lifting device comprising: a load receiving means adapted to support a vehicle or vehicle part; a pair of horizontally spaced longitudinal beams arranged with the load receiving means and substantially aligned along a generally vertical lifting

The invention claimed is: 1. A vehicle or vehicle part lifting device comprising: a load receiving means adapted to support a vehicle or vehicle part; a pair of horizontally spaced longitudinal beams arranged with the load receiving means and substantially aligned along a generally vertical lifting and lowering direction; at least one linear guide element associated with each of the beams; a base frame, the guide elements being supported from the base frame and laterally guiding the longitudinal beams and the load receiving means along the lifting and lowering direction; a means for lifting and lowering the load receiving means; each longitudinal beam comprising at an upper beam section and a lower beam section, the upper and lower beam sections of each of the beams having a tubular profile and comprising a tubular member and being collinear and aligned along the lifting direction when the load receiving means is lowered to its lowermost position, the upper and lower beam sections of each of the beams being interconnected by a hinge connection wherein the upper beam section of each of the beams is foldable relative to the lower beam section of each of the beams transversely to the lifting and lowering direction when the load receiving means is lifted above the lowermost position and the hinge connections are guided above the linear guide elements. 2. The lifting device as claimed in claim 1, wherein the base frame includes a guide rail, the guide rail guiding the upper beam sections to fold when the load receiving mean is lifted from its lowermost position. 3. The lifting device as claimed in claim 2, wherein the guide rail guides the upper beam sections to fold inwardly when the load receiving mean is lifted from its lowermost position. 4. The lifting device as claimed in claim 2, further comprising a carry-along element for each of the upper beam sections, the carry-along elements engaging the guide rail and guiding the upper beam sections to a generally horizontal position when the load receiving means is lifted to its uppermost position. 5. The lifting device as claimed in claim 4, wherein each of said carry-along elements comprises a roller which engages a respective guide rail. 6. The lifting device as claimed in claim 1, wherein the lower beam sections are connected to each other via a cross beam. 7. The lifting device as claimed in claim 6, wherein the linear guide elements extend partially around the respective longitudinal beams to thereby retain a gap, and wherein said cross beam can be moved through the gaps of the guide elements. 8. The lifting device as claimed in claim 6, wherein each of said longitudinal beams has a perimeter, each guide element engaging a respective longitudinal beams at its perimeter but extending only partially around the perimeter of the respective longitudinal beams to thereby form a gap, and the cross beam can be movable through the gaps of the guide elements. 9. The lifting device as claimed in claim 6, wherein the means for lifting is arranged on the base frame and is connected to the cross beam via a traction means. 10. The lifting device as claimed in claim 1, wherein the guide elements comprise guide rollers rotatable about axes aligned transversely to the lifting and lowering direction. 11. The lifting device as claimed in claim 10, wherein the guide rollers are positioned on the surfaces of the longitudinal beams via axes positioned about the surfaces of the longitudinal beams. 12. The lifting device as claimed in claim 1, wherein each of the longitudinal beams comprises three beam sections. 13. The lifting device as claimed in claim 12, wherein the three beam sections are colinear and connected via joints having pivot axes aligned transversely to the lifting and lowering direction. 14. The lifting device as claimed in claim 1, wherein the base frame comprises a rail vehicle which can be moved on at least two rails arranged next to each other and has running-gear mechanisms which are arranged on the base frame for engaging the rails. 15. The lifting device as claimed in claim 3, where the guide rail comprises a first straight section adjacent an upper end of a respective guide element, a curved section extending from the first straight section, and a second straight section extending from the curved section and being aligned essentially transversely to the lifting and lowering direction. 16. The lifting device as claimed in claim 1, wherein each of said beams includes a round tubular profile. 17. A vehicle or vehicle part lifting device comprising: a load receiving means adapted to support a vehicle or vehicle part; a pair of spaced apart longitudinal beams arranged with the load receiving means and substantially aligned along a vertical lifting and lowering direction when the load receiving means is lowered to a lowermost position; at least one linear guide element associated with each of the beams, the guide elements guiding each of the beams in the lifting and lowering direction; a base frame; each of the longitudinal beams comprising an upper beam section and a lower beam section, the beam sections of each of the beams being collinear and aligned along the lifting and lowering direction when the load receiving means is lowered to its lowermost position, the upper and lower beam sections of each of the beams being interconnected by a hinge connection wherein the upper beam section of each of the beams is foldable relative to a lower beam section of each of the beams transversely to the lifting and lowering direction when the load receiving means is lifted above the lowermost position and the hinge connections are guided above the linear guide element, the lower beam sections being interconnected by a cross-beam; and a lifting assembly for lifting and lowering the load receiving means relative to said base frame, said lifting assembly including a lifting mechanism mounted at the base frame and connected to the cross-beam by traction means. 18. The lifting device as claimed in claim 17, wherein the lifting mechanism comprises a lifting gear. 19. The lifting device as claimed in claim 17, wherein the traction means comprises a chain or a strap. 20. The lifting device as claimed in claim 17, wherein the traction means is mounted to the cross-beam intermediate said longitudinal beams. 21. The lifting device as claimed in claim 17, further comprising guide rails, the upper beam sections guided by the guide rails to fold inwardly wherein the upper beam sections are generally horizontally aligned when the load receiving means is lifted to its uppermost position. 22. The lifting device as claimed in claim 21, wherein each of the guide rails comprises a first straight section adjacent an upper end of a respective guide element, a curved section extending from the first straight section, and a second straight section extending from the curved section being aligned essentially transversely to the lifting and lowering direction. 23. The lifting device as claimed in claim 22, wherein the second straight sections of the guide rails are generally adjacent to each other. 24. The lifting device as claimed in claim 23, wherein the second straight sections are offset from each other so that the upper beam sections can be guided passed each other with the load receiving means is lifted to its upper most position. 25. The lifting device as claimed in claim 17, wherein each of the beam sections comprise a tubular member. 26. The lifting device as claimed in claim 17, wherein each of the longitudinal beams has a perimeter, each guide element engaging a respective longitudinal beams at its perimeter but extending only partially around the perimeter of the respective longitudinal beam to thereby form a gap wherein the cross-beam can move through the gaps of the guide elements. 27. The lifting device as claimed in claim 26, wherein each of the guide elements comprises guide rollers rotatable about axes aligned transversely to the lifting and lowering direction. 28. The lifting device as claimed in claim 17, wherein the base frame comprises a rail vehicle which can be moved on at least two rails arranged next to each other.