Stand-up unit for stand-up wheelchairs and chairs,...

A - Human Necessities – 61 – G

Patent

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Details

A61G 5/14 (2006.01)

Patent

CA 2692434

The stand-up unit (10) comprises a support (21), a stand-up frame (13), which is articulated on the support (21) and has a seat carrier (23) carrying a seat (17), and a backrest carrier (25) carrying a backrest (19). Furthermore, a first lever parallelogram (27) is provided in order to maintain the backrest (19) upright in any position. The backrest (19) can be displaced by the first lever parallelogram (27) by means of a rod (30), in order to ensure that no undesirable relative movement occurs between the backrest (19) and the back of the user when getting up or sitting down. A second lever parallelogram (29) controls the movement of the seat (17) when getting up and sitting down to ensure that no relative movement develops between the seat (17) and buttocks of the user. The stand-up unit may be provided with a base to serve as a chair, particularly a therapy chair. The stand-up unit, however, may also serve as a stand-up wheel-chair, when connected to an undercarriage. Spring joint elements (59, 61) support the standing up.

L'unité de redressement (10) comprend un support (21) et une monture de redressement (13) articulée au support (21) laquelle présente un support de siège (23), porteur d'un siège (17), et un support de dossier (25), porteur d'un dossier (19). En outre, il est prévu un premier parallélogramme articulé (27) pour maintenir droit le dossier (19) en toute position. Le dossier (19) est déplaçable à partir du premier parallélogramme (27) au moyen d'une barre (30), de façon que la prise de position debout ou assise n'entraîne aucun mouvement relatif indésirable entre le dossier (19) et le dos de l'utilisateur. Un second parallélogramme articulé (29) commande le déplacement du siège (17) de manière à n'entraîner, lors de la prise de position debout ou assise, aucun mouvement relatif entre le siège (17) et le fessier de l'utilisateur. L'unité de redressement peut, lorsqu'elle est munie d'un pied, être utilisée comme chaise, en particulier comme chaise thérapeutique. L'unité de redressement peut en outre, lorsqu'elle est assemblée avec un châssis, être utilisée comme fauteuil roulant de redressement. Des éléments d'articulation à ressort (59, 61) servent de moyens d'assistance au redressement.

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