A jack stand for use with a power unit having a slide forward bridge for positioning by the jack stand; and having a pair of leveling pads with inner roller bearings thereon for engaging an upper lifting plate of the jack stand, and a bottom plate having openings therein for engaging a mobile rack for transporting the jack stands. The jack stand has the bottom plate with a series of telescopic frames extendable therefrom, and the upper lifting plate extending from the upper frame, having side flanges with a rectangular bottom surface thereon for engaging the roller bearing of the power unit. A pair of bumpers are attached to the lowermost vertical frame with one extending forwardly and one extending rearwardly (one of which is always positioned) for engaging the slide forward bridge, as the jack stand is loaded into the power unit. The bottom plate has a pair of rectangular opening therein (one of which is always positioned) for engaging one of a plurality of rectangular fingers, extending from the platform of the mobile rack.
Commercial lifting device-jack stand
2015-08-25
Patent
Electronic Resource
English
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
Car lifting jack safety control device and car lifting jack
European Patent Office | 2021
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