Swing-Down Bed Rail with Offset Frame to Minimize Mattress Gap
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Solution Overview
Problem
There is a gap between the bed rail and the side of a mattress, which can lead to a person rolling off the sleeping surface, and existing solutions either require a built-in acute angle or a counter member that may not effectively minimize this gap.
Innovation Solution
A swing down bed rail with offset frame portions that extend beyond the mattress and mattress support, allowing the rail to swing and adjust to minimize the gap by engaging with both the mattress and support, featuring offset frame members that are forwardly disposed and spaced from a base plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a built-in acute angle is used to angle the rail portion toward the mattress side, then the gap between the bed rail and mattress is minimized, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent introduces offset frame portions that extend forwardly from the base plane in a third dimension, creating a multi-level structure. This offset positioning allows the rail to engage the mattress from multiple spatial positions, effectively minimizing the gap without requiring complex angular configurations within the base plane.
Solution Approach 2:
The bed rail is divided into multiple frame portions (base frame portions and offset frame portions) that can be independently positioned and assembled. This segmentation allows each portion to serve a specific function in gap reduction while maintaining overall structural simplicity and ease of manufacturing.
2Reliability
If a counter member is used to engage the opposite side of the bed and squeeze the mattress, then the gap is minimized, but the device complexity and setup difficulty increase
Solution Approach 1:
The offset frame portions are pre-positioned and structurally integrated into the bed rail assembly, allowing them to automatically engage with the mattress when the rail is installed. This eliminates the need for additional counter members or complex adjustment mechanisms, enabling simple setup without requiring extra components or complicated assembly steps.
3Reliability
If offset frame portions extending beyond half the length and height of the rail are used, then the gap minimization effectiveness is improved, but the weight and material usage increase
Solution Approach 1:
The offset frame portions are strategically positioned to extend beyond half the length and height of the rail portion at critical locations where gap minimization is most needed. This localized offset configuration provides maximum gap reduction effectiveness while avoiding unnecessary material usage in areas where it would not contribute to the primary function.
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.