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US 2003/0155562 A1Published application
Jack
AssigneeThyssenkrupp Bilstein GmbH
InventorFerfinand Alten
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AssigneeThyssenkrupp Bilstein GmbH
InventorFerfinand Alten
Estimating the term…
The invention relates to a jack with supporting parts, which are provided as profiles that have U-shaped cross-sections and lateral profile limbs (15, 17) or which are provided as elements with laterally elevated sheet metal lobes (13). Said supporting parts are pivotally interconnected by joints (5, 6) in such a manner that the lateral profile limbs (15, 17) and/or the elevated sheet metal lobes (13) overlap in the vicinity of the joints (5, 6), and arbors pass through borings in the lateral profile limbs ( 15, 17) or elevated sheet metal lobes (13). The aim of the invention is to reduce the weight of a jack of the aforementioned type as well as the risk of the profile limb (15, 17) kinking. To this end, the bottom of the U-shaped profile or element which, with the profile limbs (15) or sheet metal lobes (13) thereof, tightly surrounds the other profile or element, is provided with beads (19, 21) or lobes (24), which inwardly project and which are arranged inside, however, near the profile limbs (15, 17) or sheet metal lobes of the other profile or element.
Jack with load-bearing components in the form of lengths of structural U section with lateral flanges (15 & 17) or with lateral tabs (13) articulated together at joints (5 & 6) such that they overlap in the vicinity of the joints, whereby the joints comprise bores that extend through the flanges and tabs and pivots that extend through the bores, characterized in that the web in a length of section with flanges or tabs that overlaps another length is provided with an inward-projecting welt (19 or 20) or tab (24).
Dependencies are inferred from the claim text.