Bed Rail with Offset Frame Portions to Minimize Mattress Gap
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Solution Overview
Problem
There is a gap between the bed rail and the mattress side, which can lead to instability and increased risk of rolling off, as existing solutions either require complex adjustments or do not effectively minimize this gap.
Innovation Solution
A swing-down bed rail with offset frame portions that extend beyond the standard length and height, allowing for adjustable positioning to minimize the gap between the mattress and the bed frame, featuring pivotally engaged leg portions and a counter member to securely engage the mattress and mattress support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a built-in acute angle is added to the bed rail to angle it toward the mattress, then the gap between the rail and mattress is minimized, but the device complexity increases
Solution Approach 1:
The patent introduces offset frame portions that extend beyond the standard plane of the rail assembly, creating a three-dimensional offset structure. This offset positioning allows the rail to approach the mattress from a different spatial dimension, minimizing the gap without requiring complex angular adjustments to the entire rail structure.
Solution Approach 2:
The offset frame portions are strategically positioned at specific locations along the rail assembly rather than modifying the entire structure. This localized modification achieves gap minimization at critical areas while maintaining the simplicity of the overall rail design.
2Reliability
If a counter member is added to engage the opposite side of the bed to squeeze the mattress, then the gap is minimized, but the device complexity increases
Solution Approach 1:
The patent extracts the gap-minimizing function from a complex counter-member squeezing mechanism and implements it through the geometric configuration of the offset frame portions. The offset structure itself creates the necessary positioning to minimize the gap, eliminating the need for additional counter members and complex adjustment mechanisms.
3Reliability
If the rail portion is made longer and taller to minimize the gap, then the gap reduction is achieved, but the manufacturing cost increases
Solution Approach 1:
Instead of uniformly increasing the length and height of the rail portion, the patent uses offset frame portions that extend in a specific directional dimension. This targeted extension achieves gap minimization by positioning the rail closer to the mattress at critical points without proportionally increasing material usage throughout the entire structure.
Solution Approach 2:
The rail assembly is segmented into standard frame portions and offset frame portions. This segmentation allows the offset portions to be manufactured as separate components and attached to the standard rail structure, enabling cost-effective production through modular manufacturing rather than requiring custom fabrication of entirely larger rails.
Data Source
AI summary
The present bed rail with offset rails includes a rail portion swingably engaged to first and second leg portions about first and second axis. The rail portion includes first and second end frame portions extending from the first and second axis and defining a plane having a front face and a rear face. The rail portion includes an offset frame portion disposed forwardly of the front face of the plane and spaced from the front face of the plane.