Backrest of the chair and adaptation device for the same

Details Backrest of the chair and adaptation device for the same Backrest of the chair and adaptation device for the same

A - Human Necessities

47

C

A47C 7/40 (2006.01)

Patent

CA 2704503

A backrest of chair in which the lower part of a back frame can be concealed neatly by a stretching material. In the backrest device of a chair where a bag like stretching material (12) knitted or woven in the shape of mesh and opening downward is stretched across a back frame (11) formed by coupling the upper ends of right and left side frames (14a) directing the vertical direction by an upper frame (14b) directing the right and left direction, and coupling the lower ends of both the side frames (14a) by a lower frame (14c) which can be fixed to a backrest supporting rod (8) erected from the upper rear of the seat body of the chair, upper portion of the stretching material (12) is made air permeable, and at least a part at the lower portion of the stretching material (12) covering the lower frame (14c) is made non-translucent.

L'invention porte sur un dossier de siège dont la partie inférieure du cadre peut être cachée par un matériau extensible. Dans le dispositif de dossier de siège, un matériau extensible formant un sac (12) tricoté ou tissé s'ouvrant vers le bas est étiré sur le cadre du dossier (11). Le cadre de dossier est formé en accouplant les extrémités supérieures des montants droit et gauche (14a), qui définissent la direction verticale, au montant supérieur (14b), qui définit la direction droite et gauche ; et en accouplant les extrémités inférieures des deux montants latéraux (14a) au montant inférieur (14c) qui peut être fixé à une tige de support de dossier (8) érigée à la partie arrière supérieure du corps du siège. La partie supérieure du matériau extensible (12) est rendue perméable à l'air et au moins une partie à la partie inférieure du matériau extensible (12) recouvrant le cadre inférieur (14c) est rendue non translucide.

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