A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
A47C 27/04 (2006.01) A47C 27/06 (2006.01)
Patent
CA 2287522
The invention relates to a spring mattress comprising a plurality of interconnected coil-spring elements (1), said mattress having at least two layers extending in parallel with the plane of the mattress and each exhibiting different properties of resilience. The features characterising the mattress in accordance with the invention are that the same coil springs extend across both said layers and that these coil springs exhibit a higher degree of bias only along part of their extension, thus forming said layers exhibiting different properties of resilience.
L'invention concerne un matelas à ressorts comprenant une pluralité d'éléments ressorts à boudin (1) interconnectés. Ce matelas comporte au moins deux couches parallèles au plan du matelas et aux propriétés de souplesse différentes. Le matelas conforme à l'invention est caractérisé en ce que les couches sont traversées par les mêmes ressorts à boudins et en ce que ces ressorts à boudins ont une précontrainte plus élevée sur une partie seulement de leur longueur d'extension, ce qui explique que les couches aient des propriétés différentes.
Fetherstonhaugh & Co.
Stjernfjadrar Ab
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