Weight-shifting reclining and tilting wheelchair seat

A - Human Necessities – 61 – G

Patent

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Details

A61G 5/12 (2006.01) A61G 5/00 (2006.01) A61G 5/10 (2006.01) A61G 5/04 (2006.01)

Patent

CA 2350018

A wheelchair is provided, having a recline mechanism for the chair back and wherein the seat is repositioned forward in response to recline to reposition the user's weight relative to the supporting wheels. The chair is also independently equipped with a weight-shifting tilt mechanism. Moreover, a bilateral tracking mechanism (i.e., controlled motion is transmitted to both sides) is used to reposition the seat. This avoids torque due to uneven loading of the chair. Back canes of the chair and/or brackets on the chair back are slotted to enable infinite adjustment of chair arms, ventilator trays, and other accessories.

L'invention concerne un fauteuil roulant, possédant un mécanisme d'inclinaison du dossier du fauteuil, dont le siège est repositionné en avant en réponse à une inclinaison arrière du dossier, de façon à replacer le poids de l'utilisateur par rapport aux roues de support. Le fauteuil est également indépendamment équipé d'un mécanisme de basculement permettant un décalage de poids. On utilise, en outre, un mécanisme d'actionnement bilatéral (c'est-à-dire, qu'un déplacement contrôlé est transmis des deux côtés) pour replacer le siège, ce qui inhibe un couple provoqué par une charge inégalement répartie sur le siège. Des tiges de dossier et/ou des supports placés sur le dossier présentent une fente, ce qui autorise une infinité de réglages des bras de fauteuil, de plateaux de ventilation, et d'autres accessoires.

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