B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
B66F 3/35 (2006.01)
Patent
CA 2626137
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.
Cette invention concerne un coussin de levage (20) cunéiforme comprenant une partie supérieure (1) et une partie inférieure (2) avec des parois de raccord (3-33), et qui est conçu pour s~incliner sous l~action d~un fluide (air, gaz ou liquide). La partie supérieure (1) et celle inférieure (2) sont jointes en une unité commune (21) dans le bord avant (4) du coussin, ledit bord (4) se prolongeant par rapport à la paroi frontale (3) du coussin, formant ainsi une mince partie saillante avant (21) devant la paroi frontale (3), qui est active au cours de l~insertion mais passive pendant le fonctionnement. La partie avant (21) du coussin de levage cunéiforme est conçue de sorte à permettre, lorsque le coussin (20) est rempli de fluide, la dilatation de la partie supérieure (1) et la partie inférieure (2) sans empêcher la paroi frontale (3) du coussin de s~aplanir et de former la partie avant du coussin en état rempli.
Gowling Lafleur Henderson Llp
Maxgrepp Teknik Ab
LandOfFree
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