Composite material spring modules for cushions

F - Mech Eng,Light,Heat,Weapons – 16 – F

Patent

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Details

F16F 3/093 (2006.01) A47C 23/00 (2006.01) A47C 23/02 (2006.01) F16F 1/02 (2006.01)

Patent

CA 2415904

Composite material spring modules (16) have a fiber reinforced composite material spring body with attachment fittings (34, 36) integrally formed about the spring body. The attachment fittings are molded of a flexible material which dynamically responds to changes in the shape of the spring body upon deflection. Integral formation of the fittings with the spring body provides a unified single piece module which is readily attachable to any structure where spring support is desired. In one embodiment, a mounting foot (37) is configured for mounting of the spring module directly to a planar surface of a supporting frame member by a fastener, or alternatively configured to engage with a frame member without use of a fastener. The composite material spring modules exhibit the properties of stiffness and return to uncompressed state from total depth deflection without set.

Modules à ressorts en matériau composite (16) présentant un corps de ressort en matériau composite fibreux renforcé muni de garnitures de fixation (34, 36) formées d'une seule pièce autour du corps de ressort. Les garnitures de fixation sont moulées en un matériau flexible répondant dynamiquement aux variations de forme du corps du ressort lors d'une déformation. Le formage des garnitures, d'une seule pièce avec le corps du ressort, fournit un module unifié en une seule pièce qui peut être facilement attaché à toute structure devant comporter un support à ressort. Selon une forme d'exécution, un pied de montage (37) est configuré pour monter le module à ressort directement sur une surface plane d'un élément de cadre support au moyen d'un élément de fixation ou, en variante, configuré de manière à s'assembler avec un élément de cadre sans utiliser d'élément de fixation. Les modules à ressorts en matériau composite présentent des propriétés de rigidité et de retour, sans jeu, en l'état non compressé par déformation en largeur complète.

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