Mattress
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Solution Overview
Problem
Conventional mattresses with multiple layers and varying spring elements are complex and costly to produce, as they require precise arrangement of different spring forces to accommodate varying body weights, making it difficult to account for local weight distribution effectively.
Innovation Solution
The mattress features a third layer with varying thickness along its longitudinal extension, allowing for adjustable spring force distribution by varying the thickness of the first and third layers, which can be easily achieved through cutting or formation, and includes recesses to manage shear forces, ensuring comfort and support across different body areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different spring elements with different spring forces are arranged in head area, shoulder area, hip area and foot area to accommodate varying body weights, then the local weight distribution is taken into account, but the production becomes very complex
Solution Approach 1:
The patent applies local quality by varying the thickness of the third layer (foam layer) at different longitudinal positions (head area, shoulder area, hip area, foot area) to create different spring forces locally. This allows the mattress to adapt to varying body weights at different body regions without requiring different spring elements, thereby maintaining production simplicity while achieving localized adaptability.
Solution Approach 2:
The patent changes the physical parameter of the third layer's thickness to achieve varying spring forces. By adjusting the thickness parameter of the foam layer at different positions, the mattress provides different levels of support and comfort corresponding to different body weight distributions, eliminating the need for complex arrangements of spring elements with different forces.
2Ease of manufacture
If the thickness of the third layer is varied to predetermine different spring forces, then the production is simplified and more cost-effective, but the surface structure becomes non-flat requiring additional processing
Solution Approach 1:
The patent creates local variations in the third layer's thickness to achieve different spring forces at different positions. This local quality approach allows simple production through cutting or forming operations while the resulting non-flat surface is acceptable as it corresponds to the desired functional variation in support characteristics across the mattress surface.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design simplifies production while providing customizable support and comfort by adjusting spring force distribution according to the body's weight distribution, ensuring optimal support at different body regions without increasing production complexity or costs.
Implementation Method 1
the second layer (12) comprises spring elements (16)
Implementation Method 2
The first and third position usually consist of an elastic material, such as. B. foam
Data Source
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AI summary
The invention relates to a mattress (1, 1', 2, 3) having at least one first layer (10, 20, 30), a second layer (12, 22, 32) and a third layer (14, 24, 34), the second layer (12, 22, 32) comprising spring elements (16, 26, 36) and being interposed between the first layer (10, 20, 30) and the third layer (14, 24, 34). The thickness (a1, a2, a3, d1, d2, d3,..., d10) of the third layer (14, 24, 34) varies locally to an extent that exceeds the extent defined by a surface structure of the third layer (14, 24, 34) on its exterior surface (17).