Arrangement at telescopic lifting beams

Details Arrangement at telescopic lifting beams Arrangement at telescopic lifting beams

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 7/10 (2006.01) A61G 7/10 (2006.01) B66F 3/28 (2006.01)

Patent

CA 2433888

Two telescopic lifting beams are loaded in their protruded position and are driven from a retracted position to a protruded position. In order to improve the bending strength of the lifting beams, the lifting beams are surrounded by two telescopic tubes (4, 5), one (4) of the tubes being fixed to the outer end (6) of the telescopic first lifting beam (1) and is slideable on the second telescopic tube (5), which extends inwardly on the second lifting beam (2).

Ce dispositif comprend deux barres de levage téléscopique qui sont chargées lorsqu'elles se trouvent en position d'extension, et qui peuvent être entraînées d'une position de rétraction vers une position d'extension. La résistance à la flexion de ces barres de levage est renforcée par deux tubes (4, 5) télescopiques entourant les barres. Un des tubes (4) est fixé sur l'extrémité (6) externe de la première barre (1) de levage télescopique et peut coulisser sur le second tube (5) télescopique qui forme un tube intérieur entourant la seconde barre (2) de levage.

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