Swing and slide bed rail with outer and inner frames
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Bed rails often disengage from their protective position near the bed due to actions like leaning, pulling, and pushing, which can compromise their functionality.
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, slide into the space between the mattress and mattress support, and then swing back up, utilizing a traversing member and end members for engagement and disengagement with base members to maintain position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bed rail is made sturdy to resist leaning and pushing forces, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The bed rail transitions from a static structure to a dynamic one with two distinct states: a locked operating position where the rail portion is secured to resist forces, and an unlocked storage position where it can be easily moved. The locking mechanism allows the rail to be sturdy when needed but easy to reposition when not in use.
Solution Approach 2:
The connection between the rail portion and base portion changes its mechanical parameters between locked and unlocked states. When locked, the connection provides high resistance to leaning and pushing forces. When unlocked, the connection allows easy movement for storage, thus changing the physical parameters of the joint to resolve the contradiction.
2Ease of operation
If the bed rail is designed to be easily repositioned for storage, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The bed rail employs a dynamic locking mechanism that allows it to switch between an easily repositionable state for storage and a securely locked state during operation. The locking mechanism ensures that when the rail is in the operating position, it is securely held and cannot be accidentally dislodged, while still allowing intentional repositioning when needed.
Solution Approach 2:
The locking mechanism applies a preliminary restraining force to prevent the rail portion from moving once in the operating position. This preliminary anti-action counteracts any forces that might otherwise cause the rail to shift or become disengaged, ensuring reliability while maintaining ease of operation through the unlock feature.
3Reliability
If the bed rail structure is made complex to prevent disengagement, then reliability is improved, but device complexity increases
Solution Approach 1:
The bed rail is divided into two main segments: a base portion that remains stationary and a rail portion that can be repositioned. This segmentation allows the rail to achieve reliability through the locking mechanism while maintaining simplicity in overall structure. Each segment has a specific function, reducing the need for complex interconnections.
Solution Approach 2:
The locking mechanism is extracted as a separate functional element that can be engaged or disengaged as needed. Rather than making the entire structure complex, only the critical connection points incorporate locking features, keeping the rest of the structure simple while achieving the goal of preventing disengagement.
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.