Spring mattress having a series of interconnected coil springs where the springs are biased between two different turns by a biasing element

摘要

The application relates to a spring mattress comprising a plurality of interconnected coil-spring elements (1), 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 are that the same coil springs extend across both layers and that these coil springs exhibit a higher degree of bias only along part of their extension, thus forming layers exhibiting different properties of resilience.