Adjustable Bed Base Articulation to Prevent Mattress Gaps and Pinching
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Solution Overview
Problem
Adjustable bed bases with articulating platforms often create sharp angles, leading to gaps between the mattress and the base, causing discomfort and an unsightly appearance, as the mattress fails to conform to the angles and can become pinched or folded, disrupting sleep.
Innovation Solution
An adjustable base assembly with a fixed frame and an articulating frame, featuring an upper body frame, seat frame, and leg frame that move relative to each other, utilizing linking arms and rollers to maintain mattress contour and prevent pinching, along with actuators and linkages to adjust positions ergonomically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rigid segments and hinges are used to create articulating platform, then adjustability is improved, but sharp angles are created causing mattress gaps and discomfort
Solution Approach 1:
The patent applies curvature by replacing the traditional hinge connection with a curved articulating surface. The seat frame includes a curved surface that articulates relative to the lumbar support structure, creating a smooth arc-shaped path rather than sharp angular transitions. This curved articulation allows the mattress to conform continuously to the base shape, eliminating gaps and pinching while maintaining full adjustability through the curved range of motion.
2Ease of operation
If upper body frame is rotated upward toward foot of bed, then ergonomic positioning is improved, but gap is created between mattress and base at foot of bed
Solution Approach 1:
The curved articulation surface extends continuously from the lumbar region through the seat to the foot of the bed. When the upper body frame articulates upward, the curved geometry ensures that the entire surface maintains continuous contact with the mattress, preventing gap formation at the foot of the bed while achieving the desired ergonomic elevation.
3Device complexity
If traditional hinge connection is used, then structural simplicity is maintained, but mattress pinching and folding occurs
Solution Approach 1:
The curved articulating surface provides a continuously varying angle of contact between the base and mattress throughout the range of motion. This eliminates the pinching effect that occurs at fixed hinge angles, as the curved geometry naturally distributes contact pressure along the arc, preventing mattress folding and pinching while maintaining relatively simple structural implementation.
Data Source
AI summary
An adjustable base is provided that includes a fixed frame and an articulating frame connected to the fixed frame. The articulating frame includes an upper body frame pivotally connected to the upper section of the fixed frame, a seat frame pivotally connected to the upper body frame and movable along a central section of the fixed frame, and a leg frame pivotally connected to the fixed frame. An actuator is further included and has a first end connected to the seat frame adjacent to the leg frame and a second end that is connected to a linkage attached to the articulating frame. Upon activation of the actuator, the upper body frame is articulated upward and the seat frame moves linearly along the central section of the fixed frame toward the upper section of the fixed frame. Systems and methods for controlling an adjustable base assembly are further provided.