Foldable Stand With Outward-Folding Hinges for Torsional Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing foldable presentation stands face issues with stability and accidental collapse due to reduced torsional rigidity, especially when compact and transportable, requiring a design that maintains a large display area with a small footprint while preventing unintentional folding.
Innovation Solution
A foldable stand with a framework comprising a base plate and top plate connected via three-dimensional folding segments, each made of two frame parts coupled via folding hinges positioned parallel to the lateral edge, allowing the frames to fold outward in a star shape, increasing torsional stiffness and preventing accidental collapse, and featuring a knee joint mechanism for secure folding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If foldable frameworks are used to make the stand transportable and light, then the stand becomes compact and easy to transport, but the torsional rigidity is reduced and the stand becomes unstable
Solution Approach 1:
The framework is divided into multiple folding segments connected by folding hinges, allowing the stand to be segmented into collapsible units that can be easily transported while maintaining structural integrity when assembled
Solution Approach 2:
The folding hinges are positioned asymmetrically offset from the lateral edge of the frame parts, creating an uneven distribution of hinge locations that forces outward sideways movement during folding, which generates stabilizing forces and increases torsional rigidity
2Area of moving object
If the banner is designed to extend vertically to create a large display area, then the display area is increased, but the footprint is reduced
Solution Approach 1:
The stand utilizes the vertical dimension to expand the display area of the banner while maintaining a compact horizontal footprint, effectively trading horizontal space for vertical space to achieve large display area with minimal ground occupation
3Stability of the object's composition
If the folding hinges are positioned parallel offset to the lateral edge, then outward sideways movement is forced during folding increasing stability, but the mechanism becomes more complex
Solution Approach 1:
Instead of allowing inward folding motion that would compromise stability, the hinge positioning is inverted to force outward sideways movement during folding, which generates stabilizing forces and prevents unintentional collapse
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present disclosure relates to a foldable stand (1) with a banner (3) and a framework (5) including a top plate (7) and a base plate (9) coupled via at least one folding segment (11), consisting of at least three folding frames (13), each constructed from two frame parts (15) coupled via a folding hinge (17). The folding hinges (17) are positioned in such a way that when two frame parts (15) of each folding frame (13) are folded together, a sideways movement of the respective folding hinge (17) is forced outwards.