Bed Base Suspension Structure for Progressive Mattress Support
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Solution Overview
Problem
Existing suspension devices for mattresses do not allow for progressive deformation over a wide range, failing to provide adequate support and comfort during different phases of use, such as reception and support phases.
Innovation Solution
A suspension device comprising a mattress support sole with elastically deformable connecting zones formed of a base and two arms connected via a weakening zone, which change from a V to an inverted V shape under load, allowing for initial easy deformation and subsequent resistance, integrated with damping elements that take over deformation and provide additional support stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional suspension device with limited deformation range is used, then the structure is simple, but it cannot provide progressive deformation over a wide range for different usage phases
Solution Approach 1:
The connecting zone is divided into multiple functional segments: a base portion, two arms, and a weakening zone. This segmentation allows each part to contribute differently to the deformation behavior, enabling progressive deformation through controlled failure zones while maintaining overall structural integrity.
Solution Approach 2:
The connecting zone transitions from a static rigid connection to a dynamic elastically deformable structure. The arms can rotate and deform elastically under load, changing the mechanical behavior from fixed to adaptive, allowing the structure to respond differently at various stages of loading.
2Ease of operation
If the connecting zone is made rigid, then structural strength is high, but it cannot deform easily during the reception phase
Solution Approach 1:
Different parts of the connecting zone have different mechanical properties: the base and arms are designed with high strength and elasticity, while the weakening zone is intentionally designed with lower strength. This local differentiation allows the strong parts to provide structural integrity while the weak zone enables controlled deformation.
Solution Approach 2:
The mechanical parameters of the connecting zone are optimized through geometric design. The arms are given sufficient length and cross-sectional properties to provide elastic deformation capability, while the weakening zone is designed with reduced thickness or cross-section to initiate deformation at lower loads.
3Ease of operation
If the connecting zone deforms too easily, then comfort during reception phase is improved, but it cannot provide sufficient resistance during the support phase
Solution Approach 1:
The deformation process occurs in distinct stages or periods: first the weakening zone deforms, then the arms deform elastically, and finally the damping elements engage. Each stage provides different mechanical characteristics, creating a progressive resistance pattern that matches the usage phases.
Solution Approach 2:
The elastically deformable arms are designed to absorb energy during initial loading (reception phase), providing comfort before the stiffer damping elements engage. This preliminary cushioning protects the user from harsh initial contact while preparing for subsequent support.
4Adaptability or versatility
If the connecting zone is made long to allow deformation, then deformation range increases, but the height of the device increases
Solution Approach 1:
The connecting zone is nested within the hollow space formed by the concave bottom face of the plate. The arms and base are arranged to fit within the available vertical space, utilizing the hollow volume efficiently to accommodate the deformable structure without increasing overall device height.
Solution Approach 2:
Instead of achieving deformation through vertical length, the design uses horizontal arrangement and rotational movement of the arms. The arms can rotate and move laterally within the hollow space, converting vertical space constraints into horizontal deformation capabilities.
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
The design enables reduced height and increased support by allowing progressive deformation over a wide range, providing comfort during the reception phase and greater resistance during the support phase, enhancing overall mattress support and user experience.
Implementation Method 1
the or at least one of the connecting zone(s), made in one piece with said plate, being an elastically deformable zone capable of deforming in the direction of bringing said plate closer to the at least one support crosspiece under the effect of a bearing load
Implementation Method 2
damping elements arranged between cross member(s) and sole, said damping elements being deformable by compression in the direction of bringing the sole closer to the at least one supporting cross member
Data Source
Figure 1
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AI summary
The device (1) has a sole plate (2) for supporting of mattress, a support cross-piece (3) that is utilized for supporting the sole plate, and shock absorber elements (4) that are placed between the cross-piece and the sole plate. The shock absorber elements are deformable by compression in the direction of connection of the sole plate to the cross-piece. A connection zone (7) is arranged to become deformed before the shock absorber elements to which the connection zone is attached under the effect of support load.