Improved foam spring for pillows, cushions, mattresses or...

A - Human Necessities – 47 – C

Patent

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Details

A47C 27/14 (2006.01)

Patent

CA 2759450

A foam spring for use in pillows, cushions, mattresses or the like, the foam spring having a tubular resilient body (2) made of foam and forming an outer wall, with holes (3) extending inwardly from an outside surface (4) to an inside surface (5), those holes (3) being arranged in a staggered symmetry and mainly being diamond shaped, characterised in that the tubular body (2) displays said holes (3) only over a limited part (16) of its surface (4), and that this limited part (16) is regularly alternating with a limited part (18) of the surface (4) that is not provided with said holes (3) and which forms longitudinal reinforcement ribs (7) in the wall of the tubular body (2) of the spring (1).

L'invention porte sur un ressort en mousse destiné à être utilisé dans des oreillers, des coussins, des matelas, ou analogues, le ressort en mousse ayant un corps élastique tubulaire (2) réalisé en mousse et formant une paroi externe, avec des trous (3) s'étendant vers l'intérieur d'une surface externe (4) à une surface interne (5), ces trous (3) étant disposés selon une symétrie en quinconce et étant principalement en forme de diamant, lequel ressort est caractérisé en ce que le corps tubulaire (2) présente lesdits trous (3) uniquement sur une partie limitée (16) de sa surface (4), et que cette partie limitée (16) alterne régulièrement avec une partie limitée (18) de la surface (4) qui ne comporte pas lesdits trous (3) et qui forme des nervures de renfort longitudinal (7) dans la paroi du corps tubulaire (2) du ressort (1).

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