Nested Bed Rail Frames for Secure Locking and Compact Storage
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Solution Overview
Problem
Bed rails often disengage from their protective position near the bed due to actions like leaning, pulling, and pushing, which can lead to them no longer being securely positioned.
Innovation Solution
A swinging and sliding bed rail design with outer and inner frames, featuring a rail portion and base portion, where the rail portion can swing down and slide into the space between the mattress and mattress support, and includes a traversing member and end members for secure engagement and disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the bed rail is designed as a single rigid frame, then it provides strong structural support, but it is difficult to disengage and store
Solution Approach 1:
The bed rail is divided into a rail portion and a base portion that can be disengaged from each other. The rail portion includes an outer frame and an inner frame that can slide relative to each other, allowing the rail to be disassembled for storage while maintaining structural integrity during use
Solution Approach 2:
The bed rail incorporates movable components including a sliding inner frame within the outer frame, and a swingable rail portion connected to the base portion. These dynamic elements allow the rail to transition between operational and storage positions while maintaining strength when engaged
2Ease of operation
If the bed rail is made disassemblable into multiple parts, then it becomes easy to store and transport, but it may reduce structural stability
Solution Approach 1:
The inner frame is nested within the outer frame, with the inner frame sliding along guides in the outer frame. When engaged, the nested structure provides stability while allowing easy disengagement by sliding the inner frame out for storage
Solution Approach 2:
The design includes engagement features such as lugs, slots, and detents that ensure stable connection before use. The rail portion is pre-configured with engagement mechanisms that automatically secure when assembled, maintaining stability while enabling easy disassembly for storage
3Reliability
If the bed rail remains fixed in position, then it provides continuous protection, but it cannot be stored when not needed
Solution Approach 1:
The rail portion is swingably connected to the base portion, allowing it to move between a vertical operational position for protection and a horizontal storage position. The sliding inner frame further enables the rail to be collapsed into a compact configuration for storage
Solution Approach 2:
The bed rail serves multiple functions: it provides protective barriers when engaged, can be swung away for patient transfer, and can be completely disassembled for storage. The dual-frame design with sliding and swinging mechanisms enables these diverse functions
Data Source
AI summary
The present bed rail includes a rail portion and base portion. The rail portion swings down from an operating position and then slides into the base frame between a mattress and a mattress support to come to rest in the base frame in a stored position. The rail portion includes outer and inner frames. The outer frame is swingably and slideably engaged to the base frame. The inner frame is slideable on straight end portions of the outer frame and engages the base frame to prevent swinging and sliding of the rail portion.