Chair control

A - Human Necessities – 47 – C

Patent

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Details

A47C 1/024 (2006.01) A47C 1/03 (2006.01)

Patent

CA 2201253

A chair control is shown for adjusting the horizontal position of a chair armrest or a chair back. A support bar, upon which the chair armrest or back is mounted, a slidably located in a mounting bracket usually attached to the underside of the chair seat. The mounting bracket includes a first pivot pin spaced transversely of the support bar, and a rigid lever mounted on this pivot pin, the pivot pin acting as a fulcrum. The rigid lever includes a first end portion that pivots into locking engagement with the support bar and a second remote end portion. An over-the-centre toggle linkage is coupled to the lever second end portion to rotate the lever about the pivot pin to engage the support bar and lock it in position.

Élément de réglage de la position horizontale des appui-bras ou du dossier d'un fauteuil. Une barre de support, sur laquelle les appui-bras ou le dossier sont montés, est placée de façon coulissante dans un support normalement fixé à la face inférieure du siège du fauteuil. Le support comporte un premier axe de pivotement en sens transversal par rapport à la barre de support, ainsi qu'un levier rigide monté sur cet axe de pivotement agissant comme point fixe. Le levier rigide comprend une première partie d'extrémité qui pivote en un engagement de blocage avec la barre de support, ainsi qu'une seconde partie d'extrémité éloignée. Une genouillère décentrée est couplée à la seconde partie d'extrémité du levier, afin de faire pivoter ce dernier sur l'axe de pivotement pour engager la barre de support et la bloquer.

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