The invention relates to a lifting cushion (20) that is wedge-shaped and is formed by a top part (1) and a bottom part (2) with connecting walls (3-33), and which is arranged to be tillable with fluid, e.g., air, gas or liquid. The top part (1) and the bottom part (2) are joined to a common unit (21) in the forward edge (4) of the cushion, and said forward edge (4) is extended in relation to the front wall (3) of the lifting cushion and forms thereby a thin fore extended part (21) in front of said front wall (3) and that is active during the insertion but passive during operation. Said fore part (21) of the wedge-shaped lifting cushion is arranged in such a way that when the lifting cushion (20) is filled with fluid, the fore extended top part (1) and the bottom part (2) are expanded without preventing the fore wall (3) of the lifting cushion from smoothing out and forming the fore part of the lifting cushion in a filled state.
WEDGE-FORMED LIFTING CUSHION
KEILFÖRMIGES HEBEKISSEN
COUSSIN DE LEVAGE CUNEIFORME
2017-09-06
Patent
Elektronische Ressource
Englisch
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 |
METHOD FOR MANUFACTURING AN INFLATABLE LIFTING CUSHION AND LIFTING CUSHION
Europäisches Patentamt | 2020
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