The extension mechanism that position arranged and slept position arrangement is slept for adjusting one

摘要

The present invention relates to an extension mechanism (60) for adjusting a bed arrangement (10) between an expanded state and a contracted state. The extension mechanism (60) comprises rows of interconnected spring members (62) and rods (64) linked (L) to the spring members (62) in a parallelogram configuration to provide a resilient mattress core portion.The present invention also relates to a variable-size bed arrangement (10) comprising a mattress core (30) and a base (20), which base (20) is adapted to support at least a portion of the mattress core (30). The bed arrangement comprises an extension mechanism (60) comprising rows of interconnected spring members (62) and rods (64) linked (L) to the spring members (62) in a parallelogram configuration to provide a resilient mattress core portion.