Foldable Panel Cart with Rotating Hinges
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Solution Overview
Problem
The existing panel carts require significant storage space due to their large size, making them inefficient for transportation and storage, especially when not in use.
Innovation Solution
A foldable panel cart design that includes standing frames mounted on a base frame with movable joints and couplers, allowing the frames to be rotated from an upright position to a parallel position for storage, reducing the overall height and enabling stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If panel carts use large material erecting frames to support large sheets, then the supporting capability is improved, but the storage area required increases
Solution Approach 1:
The panel cart employs movable joints and rotatable hinges that allow the standing frames to dynamically change between upright (supporting) and folded (storage) positions. This dynamic structure enables the cart to adapt its configuration based on operational needs, providing full supporting capability during use and minimal storage footprint when not in use
Solution Approach 2:
The cart is divided into separable components including standing frames, base frame, and coupling mechanisms that can be independently positioned. The standing frames can be rotated and folded relative to the base frame, allowing the structure to be segmented during storage while maintaining integrity during operation
2Adaptability or versatility
If panel carts are designed with large frames for transporting sheets, then the transportation capability is improved, but the space efficiency during storage deteriorates
Solution Approach 1:
The cart features dynamic folding mechanisms with rotatable hinges allowing the frames to transition between extended transportation configuration and compact storage configuration. This enables the same structure to provide large volume for sheet transportation and small volume for storage
Solution Approach 2:
The standing frames can be folded and nested against the base frame, with components fitting within or adjacent to each other in a compact arrangement. This nesting capability significantly reduces the overall volume occupied during storage while maintaining full functionality during transportation
3Stability of the object's composition
If panel carts have fixed upright frames, then the structural stability is improved, but the foldability for storage deteriorates
Solution Approach 1:
The structure uses movable joints and rotatable hinges instead of fixed connections, allowing the frames to be stable in the upright position during operation while enabling folding and compact storage when needed. The dynamic joints provide stability when loaded and flexibility when folding
Solution Approach 2:
The cart structure is segmented into modular components connected by coupling mechanisms. These segments can be independently positioned and secured, providing structural stability when assembled in upright configuration while enabling easy folding and reconfiguration for storage
Data Source
AI summary
A foldable or collapsible panel cart can include a base frame with wheels. The panel cart can include multiple standing frames erected from the base frame. The standing frames can be coupled to the base frame through movable joints, such as rotatable hinges, configured to rotate the standing frames into folded configuration parallel to the base frame. Multiple couplers, such as latches or bolts, can be disposed between the standing frames in upright position and the base frame to secure the standing frames to the base frame in the upright position.