Integrated Spring Preloading Band for Flexible Mattress Support
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Solution Overview
Problem
Existing spring elements with prestressing devices face limitations in flexibility under load and require special assembly procedures, which restrict their usability and performance.
Innovation Solution
An integrated prestressing device, comprising a plastic strip or band, is designed to provide permanent preloading and limit spring deflection, allowing for direction-independent loading and improved flexibility by being an integral component of the spring element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate prestressing device is used before inserting the spring element, then the spring element can be prestressed, but it requires special assembly procedures and training
Solution Approach 1:
The prestressing device is integrated directly into the spring element structure. The band is attached to the support plate and base plate, merging the prestressing function with the spring element itself. This eliminates the need for separate prestressing operations and special assembly procedures, while maintaining the prestressing effect.
Solution Approach 2:
The band is pre-tensioned during manufacturing and attached to the support plate and base plate before the spring element is inserted into the mattress. This preliminary prestressing action ensures the spring element is already preloaded, eliminating the need for post-assembly prestressing operations.
2Reliability
If an annular band surrounds the spring element to prestress it, then the spring element is prestressed, but the flexibility of the spring element is restricted under load
Solution Approach 1:
Instead of surrounding the entire spring element with an annular band, the band is positioned locally between the support plate and base plate, applying prestress only where needed. This localized approach maintains flexibility in other areas of the spring element while achieving the desired prestressing effect.
Solution Approach 2:
The prestressing function is segmented from the overall spring element structure. The band is a separate component that can be independently positioned and tensioned, allowing selective application of prestress without constraining the entire spring element, thus preserving flexibility where not needed.
3Ease of operation
If the prestressing device is integrated into the spring element, then installation is simplified, but the spring deflection must be limited by the integrated element
Solution Approach 1:
The band serves multiple functions: it provides prestressing, limits spring deflection, and acts as an integrated structural element. This multi-functionality simplifies installation by eliminating separate components while the complexity is managed through the band's dual role in both prestressing and deflection limitation.
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 integrated prestressing device enhances the flexibility and usability of spring elements by allowing for easy installation and maintaining preloading without the need for special assembly, ensuring consistent performance across different loading directions.
Implementation Method 1
The integrated element includes a band (6), which absorbs the prestressing of the spring body (5)
Data Source
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AI summary
The invention relates to a biasing device for a spring element that can be used in pockets of mattresses, on slats of a slatted frame, or in upholstered seat elements. The spring element comprises a top part designed as a supporting disk (3), and a bottom part designed as a base plate (4). A spring member, which cooperates with a biasing device for mounting the spring element in order to limit the excursion of the spring, is arranged between the supporting disk and the base plate. According to the invention, the biasing device (1) is arranged within the spring element (2) as an integrated element (6) for limiting the excursion of the spring.