Movable Mattress Retainer Bars for Adjustable Platform Assemblies
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Solution Overview
Problem
Conventional mattress retainer systems that rely on friction to secure mattresses on adjustable platform assemblies are inadequate for heavier mattresses, as they cannot withstand the weight and may require cumbersome removal and reinstallation for mattress rotation, posing difficulties for senior citizens and individuals with disabilities.
Innovation Solution
A mattress retainer system with movable and removable bars that can be positioned under the adjustable platform assembly to facilitate easy rotation of the mattress, featuring a bracket and detent mechanism to secure the bars in extended or retracted positions, allowing for secure retention and easy maneuverability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional mattress retainer systems rely on friction to secure mattresses, then they can provide simple retention, but they cannot withstand the weight of heavier mattresses and may fail
Solution Approach 1:
The retainer bar is designed to be movable rather than fixed, allowing it to be positioned in different locations along the platform assembly. This dynamic positioning enables the bar to engage with the mattress at optimal points for both light and heavy mattresses, providing adaptable retention strength while maintaining system reliability through mechanical engagement rather than relying solely on friction
Solution Approach 2:
The system changes the retention mechanism from friction-based to mechanical engagement-based. By using a movable bar that can be positioned to physically block mattress movement, the system transforms the retention parameter from dependent on surface friction to dependent on mechanical positioning and physical constraint, thereby increasing both strength and reliability
2Reliability
If mattress retainer bars are permanently fixed to the platform assembly, then they provide secure retention, but they require cumbersome removal and reinstallation for mattress rotation
Solution Approach 1:
The retainer bar is designed as a movable component that can be freely repositioned along the platform assembly without removal. This dynamic design allows users to simply slide the bar to a new position to accommodate mattress rotation, eliminating the cumbersome process of complete removal and reinstallation while maintaining secure retention through continuous mechanical engagement
Solution Approach 2:
The movable retainer bar serves multiple functions: it provides secure retention in its default position, facilitates easy mattress rotation by being repositioned, and can be adjusted to accommodate different mattress sizes and weights. This multi-functionality resolves the contradiction by making the same component adaptable to both retention and rotation needs
3Device complexity
If mattress retainer systems use friction-based retention, then they provide simple design, but they require excessive force to secure heavier mattresses
Solution Approach 1:
The system replaces the friction-based mechanical retention with a movable bar mechanism that uses direct physical engagement and positioning. Instead of relying on friction forces that increase with mattress weight, the bar provides mechanical constraint that prevents movement through its position, thereby reducing the force required to secure the mattress while maintaining simplicity in design
Data Source
AI summary
A mattress retention assembly is disclosed that includes a mattress retainer system for retaining a mattress in place that is supported by an adjustable platform assembly and more particularly to a mattress retainer system that includes mattress retainer bars. The mattress retainer system is attached to the adjustable platform assembly. In order to secure the mattress relative to the adjustable platform assembly, one or more mattress retainer bars for the head and foot of the bed along with the corners of the bed are provided. In accordance with an important aspect of the invention, the mattress retainer bars are movable or removable to allow the mattress retainer bars to be positioned flush or below the top surface of the adjustable platform assembly to enable easy and convenient rotation, maneuverability, or otherwise sliding of the mattress relative to the platform. After the mattress is rotated, maneuvered, or slid, the mattress retainer is re-positioned to restrain movement of the mattress with respect to the adjustable platform assembly.