Airtight Pocket Spring Mattress for Gradual Load Damping
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Solution Overview
Problem
Conventional pocket spring mattresses are often too soft, making it difficult to move and increasing the risk of falling out of bed, while existing solutions either lack damping or are not suitable for standard pocket mattresses.
Innovation Solution
A spring mattress design featuring airtight casing materials with controlled airflow resistance, allowing air to escape gradually under load, providing initial damping and resistance that decreases as the load increases, mimicking visco-elastic properties without temperature dependence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the mattress is made soft and comfortable with conventional pocket springs, then comfort is improved, but the user experiences difficulty moving and increased risk of falling out of bed
Solution Approach 1:
The patent applies dynamics by making the mattress firmness adjustable through air pressure control in the airtight casings. The system transitions from a static firmness level to a dynamic one where the user can adjust the air pressure to achieve the desired balance between comfort and support, preventing falls while maintaining ease of movement.
Solution Approach 2:
The patent changes the physical parameter of air pressure within the airtight casings to control mattress firmness. By adjusting the air pressure, the mattress can be made softer for comfort or firmer for support and safety, directly addressing the contradiction between ease of movement and fall prevention.
2Stability of the object's composition
If airtight casings with check valves are used to provide damping, then swinging and oscillation are reduced, but the mattress becomes difficult to return to extended position and is not suitable for beds
Solution Approach 1:
The patent uses an intermediary mechanism (adjustable air pressure system with one-way valves) that allows air to flow in one direction during compression while maintaining pressure during extension. This intermediary system provides damping to reduce oscillation while still allowing the mattress to return to its extended position, solving the contradiction between stability and ease of operation.
Solution Approach 2:
The dynamic adjustment of air pressure allows the mattress to exhibit different mechanical properties during different phases of use. During compression, the air pressure provides damping; during extension, the controlled pressure release allows easy return to the original position, making the mattress suitable for bed use.
3Temperature
If air permeable material is used to allow airflow through the mattress, then cooling effect is provided, but no damping is achieved
Solution Approach 1:
The patent segments the mattress into multiple airtight compartments or casings that can independently control airflow. Each compartment can be made airtight for damping while the overall mattress structure maintains airflow channels between compartments, achieving both damping and cooling effects simultaneously.
Solution Approach 2:
The patent applies different air permeability properties to different parts of the mattress structure. The casings containing the springs are made airtight to provide damping, while the overall mattress structure maintains airflow channels in non-casing areas to provide cooling, thus achieving both functions in different locations.
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 mattress offers easy movement and reduced risk of falling while maintaining comfort and airflow, with temperature-independent properties that ensure consistent performance.
Implementation Method 1
a resistance is provided to air being pressed out when the springs of the mattress are loaded, which, with a uniform load during a transition period, results in a gradually increasing depression of the spring to its depressed state
Implementation Method 2
When the spring is subjected to a load, the air cushion will first absorb most of the force
Implementation Method 3
the air cushion will be filled in an unloaded state by the enclosed spring expanding the material
Data Source
AI summary
A spring mattress for beds is disclosed. In at least one embodiment, the spring mattress includes a plurality of strings which are interconnected side by side and include a continuous casing material with a plurality of separate pockets with coil springs enclosed therein. Moreover the casing material for at least some pockets is at least substantially airtight, thus providing a resistance to air being pressed out when the springs of the mattress are loaded, which, when subjected to a uniform load during a transition period, results in a gradually increasing depression of the spring to its depressed state. This results in a comfortable mattress, into which the user sinks gradually and which thus is comfortable and safe and allows the user to move easily. A corresponding method and device for manufacturing such a mattress are also described.