Backrest

Details Backrest Backrest

A - Human Necessities

47

C

A47C 7/44 (2006.01) A47C 7/40 (2006.01)

Patent

CA 2063440

The invention relates to a backrest for a chair, armchair, seat or the like with two laterally disposed shell-shaped back elements which are shaped like the support surfaces of horse saddles and are concavely shaped in respect of an axis extending substantially perpendicular to the seat surface and convexly shaped in respect of a horizontal transverse axis above the seat surface, the shell-shaped back elements (1) being attached substantially in the central portion thereof to a crossrail (20) disposed therebehind by means of one or more rubber elements (32) such that the connecting surfaces between the rubber elements (32) and force-transmitting angled metal members (30, 31, 33) or U-shaped metal elements lie in a horizontal or predominantly horizontal plane.

Cale-reins pour chaise, fauteuil, siège ou autres. Ce dispositif comporte deux éléments de dos latéraux et conchiformes qui sont de forme similaire aux surfaces de support des selles, de forme concave par rapport à un axe s'étendant en direction essentiellement perpendiculaire à la surface du siège, et de forme convexe par rapport à un axe transversal horizontal au-dessus de la surface du siège. Les éléments de dos conchiformes (1) sont fixés essentiellement dans la partie centrale de la surface du siège à une traverse (20) disposée derrière cette partie au moyen d'un ou de plusieurs éléments de caoutchouc (32). Les surfaces de jonction entre les éléments de caoutchouc (32) et les éléments métalliques obliques de transmission de force (30, 31, 33), ou les éléments métalliques en U, demeurent ainsi en plan horizontal ou principalement horizontal.

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