Support device for a trailer of a semitrailer truck

Details Support device for a trailer of a semitrailer truck Support device for a trailer of a semitrailer truck

B - Operations, Transporting

60

S

B60S 9/08 (2006.01)

Patent

CA 2404749

Landing gears of support devices for articulated vehicle trailers are frequently left in neutral position while the articulated vehicle is being driven. The vibrations which occur during driving can cause the landing gear to descend unintentionally, touch the ground and be damaged. The invention provides a support device with a landing gear which is reliably prevented from descending. To this end, the toothed ring of the input shaft (1) has two longitudinal sections (1a, 1b) of different diameters while having constant tooth spacing throughout. The tooth length in both sections (1a, 1b) is dimensioned in such a way that in neutral position, the input shaft (1) can rotate while the toothed wheel (3a) remains stationary but is prevented from rotating while the input shaft (1) remains stationary.

Les mécanismes à vérin de dispositifs d'appui pour des remorques de véhicules articulés sont souvent laissés en position neutre lorsque le véhicule tracteur roule. En raison des vibrations qui se produisent pendant que le véhicule roule, le mécanisme d'appui à vérin peut se détacher de manière non intentionnelle, toucher le sol et se trouver ainsi endommagé. Dans le dispositif d'appui à mécanisme à vérin selon la présente invention, le vérin d'appui est fiablement attaché et ne peut se détacher. A cet effet, la couronne dentée de l'arbre d'entrée (1) possède deux segments longitudinaux (1a, 1b) de diamètre différent, la répartition des dents étant la même sur ces deux segments. La longueur des dents sur ces deux segments (1a, 1b) est ainsi mesurée que l'arbre d'entrée (1) peut tourner, dans la position neutre, alors que la roue dentée (3a) est stationnaire, mais que ladite roue dentée (3a) ne peut tourner lorsque l'arbre d'entrée (1) est stationnaire.

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