Adjustable seating

A - Human Necessities – 47 – C

Patent

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Details

A47C 3/18 (2006.01) A47C 1/032 (2006.01) A47C 7/40 (2006.01)

Patent

CA 2217749

Adjustable seating has a frame, a seat bottom mounted on the frame so as to slide forwardly and rearwardly, and a seat back mounted on the frame so as to slide upwardly and downwardly and also to tilt rearwardly from a resiliently restrained upright position. A lumbar back is mounted on the frame between the seat bottom and seat back so as to move generally in coordination with movements of the seat bottom and seat back. The lumbar back provides good support for the lumbar portion of the body of a person seated in the seating in all postures and all positions of the seat bottom and seat back.

Cette invention concerne un siège réglable composé d'un cadre, d'une plate-forme montée sur le cadre de façon à pouvoir coulisser d'avant en arrière et d'un dossier également monté sur le cadre de façon à pouvoir coulisser de bas en haut et s'incliner vers l'arrière par rapport à une position verticale maintenue par une force élastique. Le cadre comporte également un support lombaire monté entre la plate-forme et le dossier de façon à pouvoir se déplacer en fonction des mouvements des deux autres éléments mobiles du siège. Le support lombaire est efficace dans toutes les positions adoptées par l'utilisateur et dans toutes les positions de la plate-forme et du dossier.

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