Foldable Frame Locking Mechanism to Prevent Accidental Collapse
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Solution Overview
Problem
Existing foldable frames are bulky when folded and can unintentionally fold, posing safety hazards due to pinching and lack of stability.
Innovation Solution
A foldable frame design with asymmetrical leg assemblies and a safety enhancement mechanism that includes a locking mechanism to prevent accidental folding, minimizing thickness and ensuring stability when unfolded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional foldable frame structures are used, then the frame can be folded for storage, but the folded thickness becomes large due to component overlap
Solution Approach 1:
The patent implements nesting by allowing the third leg assembly to be received within the space between the first and second leg assemblies when folded. The base members are positioned at different heights and locations such that they nest together, minimizing the overall folded thickness and storage volume of the frame structure.
2Reliability
If traditional foldable frame structures are used, then the frame is simple in design, but the frame may fold unintentionally causing safety hazards
Solution Approach 1:
The patent applies preliminary anti-action by implementing a locking mechanism that prevents the frame from folding unintentionally. The locking mechanism includes a locking member that engages with the leg assemblies to counteract any forces that might cause accidental folding, thereby preventing safety hazards before they can occur.
3Stability of the object's composition
If traditional foldable frame structures are used, then the manufacturing process is simple, but the frame lacks stability when unfolded
Solution Approach 1:
The patent implements asymmetry by positioning the base members of the leg assemblies at different heights and locations. Specifically, the base members are arranged such that they are not symmetrically positioned relative to the mounting assemblies, creating a more stable triangular support configuration when unfolded while maintaining manufacturability through standardized components.
Data Source
AI summary
A foldable frame includes first and second units pivotally coupled with each other at their proximal sides and rotatable with respect to each other between a folded state and an unfolded state. The foldable frame also includes a middle leg assembly coupled with the first and second units at the proximal sides of the first and second units. The foldable frame further includes a safety enhancement assembly having a first enhancement member, a second enhancement member and a locking mechanism. The first enhancement member is connected to the first unit and the middle leg assembly. The second enhancement member is connected to the second unit and the middle leg assembly. The locking mechanism selectively locks the first and second enhancement members when the first and second units are in the unfolded state, and thus prevents accidental folding of the first and second units.