B - Operations – Transporting – 60 – P
Patent
B - Operations, Transporting
60
P
B60P 1/44 (2006.01) A61G 3/06 (2006.01)
Patent
CA 2335081
The present invention relates to a hydraulic circuit (20) capable of independently controlling a plurality of hydraulic cylinders or actuators (22, 24). The hydraulic circuit (20) includes a set of independently energizeable valves (42, 44, 46) fluidically positioned in the circuit (20) and capable of, when selectively energized and de-energized, functionally isolating specific circuit elements. In one preferred embodiment, the present invention relates to a hydraulic circuit (20) for independently controlling the stowage functions, vertical movement, and rollstop operations of a wheelchair-lifting platform (52). Another preferred embodiment of the present invention relates to a wheelchair lifting platform (52) having a lifting cylinder (22) and a rollstop cylinder (24) and incorporating a hydraulic circuit (20) capable of independently actuating and controlling the respective cylinders (22, 24).
L'invention concerne un circuit hydraulique (20) capable de commander séparément plusieurs vérins ou actionneurs hydrauliques (22, 24). Le circuit hydraulique comporte un ensemble de clapets (42, 44, 46) excitables séparément, positionnés dans le circuit hydraulique (20) et capables, lorsqu'ils sont excités et non excités sélectivement, d'isoler fonctionnellement des éléments spécifiques du circuit. Dans un mode de réalisation préféré, l'invention porte sur un circuit hydraulique (20) qui commande séparément les fonctions d'immobilisation, de déplacement vertical et les opérations du butoir escamotable d'une plate-forme (52) de fauteuil roulant. Dans un autre mode de réalisation préféré, l'invention se rapporte à une plate-forme de levage (52) de fauteuil roulant, dotée d'un vérin de levage (22) et d'un vérin (24) de butoir, d'un circuit hydraulique intégré (20) capable d'actionner et de commander séparément les vérins respectifs (22, 24).
Smart & Biggar
The Braun Corporation
LandOfFree
Hydraulic circuit for isolating a lifting cylinder from a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic circuit for isolating a lifting cylinder from a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic circuit for isolating a lifting cylinder from a... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1557650