Self-adjusting seating system

A - Human Necessities – 47 – C

Patent

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Details

A47C 27/18 (2006.01) A47C 4/54 (2006.01) A47C 7/02 (2006.01) A47C 7/18 (2006.01) A61G 5/10 (2006.01)

Patent

CA 2169275

A seating system (1) primarily intended for use with wheelchairs. The seating system (1) includes a relatively rigid, shaped tray (5) and a fluid pad (7). The tray (5) has a forward section (11) to support the user's thighs and a rearward section (13) with a depressed, contoured seating well (17) to support the user's buttocks including his ischial tuberosities (21). The seating well (17) includes a bottom portion (19) and a U-shaped rim portion (19') extending about it. The fluid pad (7) contains a fixed volume of incompressible fluid and is provided and dimensioned to be bunched up and received in the seating well (17) of the tray (5). The seating system (1) also includes a self-adjusting feature to automatically and properly fit a user based on his weight. This is accomplished in the preferred embodiments by adding a layer of resilient, compressible foam (9) over the upper surface (19') of the am portion of the seating well (17) between the fluid pad (7) and the rim portion.

L'invention concerne un système d'assise (1) principalement destiné à être utilisé avec des fauteuils roulants. Ledit système d'assise (1) comporte un plateau façonné (5) relativement rigide et un coussin de fluide (7). Le plateau (5) présente une partie avant (11) supportant les cuisses de l'utilisateur et une partie arrière (13) comprenant un creux d'assise (17) épousant les formes du corps conçu pour supporter les fesses de l'utilisateur dont les tubérosités ischiatiques (21). Ledit creux d'assise (17) comprend une partie inférieure (19) autour de laquelle s'étend une partie périphérique (19') en forme de U. Le coussin de fluide (7) qui comporte un volume fixe de fluide incompressible est conçu et dimensionné pour être tassé et placé dans le creux d'assise (17) du plateau (5). Le système d'assise (1) est également doté d'un dispositif auto-réglable qui s'adapte automatiquement et correctement à l'utilisateur selon le poids de ce dernier. Pour ce faire, dans les modes préférés de réalisation, une couche de mousse élastique compressible (9) est ajoutée sur la surface supérieure (19') de la partie périphérique du creux de l'assise (17), entre le coussin de fluide (7) et la partie périphérique.

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