Adjustable foundation
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Solution Overview
Problem
Existing adjustable mattress assemblies lack the ability to efficiently adjust the length of the intermediate seat section while changing the inclination of the head and back section or leg and foot section, leading to discomfort and pinch points during articulation.
Innovation Solution
An adjustable mattress assembly with a foundation frame, a mattress support surface divided into hinged sections, and actuators coupled to a linkage assembly that allows for the selective inclination or declination of the head and back section and leg and foot section, while also adjusting the length of the intermediate seat section by moving its portions relative to each other.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the intermediate seat section length is adjusted during articulation, then user comfort is improved and pinch points are minimized, but the device complexity increases due to the additional linkage assembly and actuator requirements
Solution Approach 1:
The patent combines the intermediate seat section length adjustment function with the existing articulation mechanism by integrating a linkage assembly that couples the actuator's linear motion to both the head/foot section inclination and the intermediate section length adjustment. This merging allows a single actuator to control multiple functions simultaneously, improving user comfort while limiting the increase in device complexity.
2Device complexity
If a single actuator controls both inclination and length adjustment, then the device complexity is reduced, but the control precision for each function may be compromised
Solution Approach 1:
The patent introduces a linkage assembly as an intermediary mechanism between the actuator and the mattress sections. This linkage assembly includes linkages and pivots that translate the actuator's linear motion into coordinated rotational and translational movements, ensuring precise control of both inclination and length adjustment functions while maintaining a relatively simple overall structure.
3Adaptability or versatility
If the mattress sections are hinged for articulation, then the adaptability to user positions is improved, but the structural stability may be reduced during movement
Solution Approach 1:
The patent employs hinged connections between mattress sections that allow dynamic adjustment to various user positions while maintaining structural integrity. The hinges are designed with robust construction and are配合with the linkage assembly to ensure stable articulation movement, providing both adaptability to different positions and structural stability during transitions.
Data Source
AI summary
An adjustable foundation and process includes a mattress support surface including a head/back section hingedly connected to an intermediate section at one end and a leg/foot section hingedly connected to the intermediate section at another end, wherein the intermediate section includes a first second portions, wherein the first portion is hingedly connected to the head/back section and the second portion is hingedly connected to the leg/foot section. The intermediate section is configured to increase in length upon articulation of the head/back section and/or the leg/foot section from a flat position or an increase in inclination of any section. Likewise, the intermediate section is configured to decrease in length upon articulation of the head/back section and/or the leg/ foot section from an inclined position to a flat position or a decrease in length upon declination of any section.