Vertical folding wheelchair frame

B - Operations – Transporting – 62 – B

Patent

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Details

B62B 7/06 (2006.01) A61G 5/08 (2006.01) A61G 5/12 (2006.01)

Patent

CA 2204761

A vertical foldable wheelchair (10) having a pair of side frame assemblies (11, 11') each including frame members coupled together for selective movement of the side frame assemblies (11, 11') between a vertically extended deployed condition and a relatively vertically compact collapsed condition. The frame members are coupled together to provide a bi-stable, over-center, linkage assembly (13, 13') which is movable between and biased toward of: (i) a first stable position on one side of a linkage assembly centerline when the side frame assemblies (11, 11') are in the deployed condition; and (ii) a second stable position on an opposite side of the centerline when the side frame assemblies (11, 11') are in the collapsed condition.

Un fauteuil roulant pliable verticalement (10) comprend deux ensembles cadre latéraux (11, 11') dotés chacun d'éléments de cadre reliés de façon à permettre des mouvements sélectifs desdits ensembles (11, 11') entre une position déployée, orientée verticalement, et une position rétractée relativement compacte dans le sens vertical. Ces éléments de cadre sont reliés de façon à former un ensemble de liaison décentré à double stabilité (13, 13') qu'on peut déplacer par contrainte vers: (i) une première position stable, d'un côté d'un axe central d'ensemble de liaison quand les ensembles de cadre latéraux (11, 11') sont en position déployée, et (ii) une deuxième position stable de l'autre côté de cet axe central quand ces ensembles de cadre latéraux (11, 11') sont en position rétractée.

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