Multilayered seat having different hardnesses and provided...

Details Multilayered seat having different hardnesses and provided... Multilayered seat having different hardnesses and provided...

B - Operations, Transporting

32

B

B32B 5/18 (2006.01) B29D 99/00 (2010.01) A47C 7/18 (2006.01) B29C 39/10 (2006.01) B29C 39/12 (2006.01) B29C 39/40 (2006.01) B29C 44/04 (2006.01) B29C 44/56 (2006.01) B32B 5/32 (2006.01) B68G 3/00 (2006.01) B68G 11/04 (2006.01)

Patent

CA 2259533

A multilayered seat having different hardnesses, breathable face material with a good surface touch and a hardness capable of bearing a body weight of a person who sits on the seat. A seat (1) comprises a shaped body of foam covered with a breathable face material (2). The shaped body comprises a first foamed member (10), which defines a base of the body, and a second foamed member (6), which is made integral with a back surface of the face material and a surface of the first foamed member by pressurizing and compressing a liquid foaming mixture, which is projected on and laminated on the first foamed member and has undergone gaseous reaction but remains in a fluid state, by means of the first foamed member and a pressure die, which is disposed on the face material above the liquid foaming mixture, shaped to be the top portion of the seat and provided with suction ports, while performing suction through the suction ports of the pressure die.

L'invention concerne un siège multicouche présentant différentes duretés, un tissu supérieur respirant possédant un toucher de surface agréable et une dureté permettant de supporter le poids du corps d'une personne assise sur ce siège. Un siège (1) comporte un corps moulé en mousse recouverte d'un tissu supérieur respirant (2). Ce corps moulé comprend un premier élément en mousse (10), lequel définit une base du corps, et un deuxième élément en mousse (6), lequel est réalisé d'une seule pièce avec une surface envers du tissu supérieur et une surface du premier élément en mousse par mise en pression et compression d'un mélange moussant liquide, lequel est projeté et stratifié sur le premier élément en mousse et a subi une réaction gazeuse mais demeure dans un état fluide, au moyen du premier élément en mousse et d'un moule sous pression, lequel est disposé sur le tissu supérieur au-dessus du mélange moussant liquide, configuré pour constituer la partie supérieure du siège et pourvu d'orifices d'aspiration, l'aspiration s'effectuant par les orifices d'aspiration du moule sous pression.

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