Collapsible Cart with Rotating Base and Foldable Walls
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Solution Overview
Problem
Traditional wheeled transport devices for lawn or property maintenance take up significant storage space when not in use, limiting their ownership due to space constraints, forcing users to carry tools or debris manually, which results in increased trips and physical fatigue.
Innovation Solution
A collapsible cart designed to fold or collapse into a substantially flat position, featuring a frame, tongue assembly, axle, base, and retaining walls with rotatable devices, allowing for compact storage in an upright or vertical position, and a wheel bracket that rotates the base to various angles for efficient storage and use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional wheeled transport devices are used, then transporting capability is provided, but storage space requirement increases
Solution Approach 1:
The cart employs dynamic structures including collapsible sidewalls that can transition between extended and retracted positions, and a adjustable bed configuration that can tilt and fold. These dynamic elements allow the cart to adapt its volume and shape based on whether it is in use or storage mode, resolving the contradiction between maintaining transporting capability and reducing storage space requirements
Solution Approach 2:
The cart design incorporates nesting principles where the collapsible sidewalls fold inward and the bed structure folds beneath the frame when not in use. This nesting arrangement allows the cart to compact into a minimal storage footprint while maintaining full functionality when deployed
2Volume of moving object
If traditional wheeled transport devices are used, then transporting capability is provided, but storage space complexity increases
Solution Approach 1:
The cart is divided into modular segments including the frame, collapsible sidewalls, adjustable bed, and wheel assembly. Each segment can independently fold or collapse, allowing the overall structure to compact efficiently. This segmentation enables complex functionality to be achieved through simpler, standardized components that can be manufactured and assembled efficiently
Solution Approach 2:
The cart employs dynamic structures including collapsible sidewalls that can transition between extended and retracted positions, and a adjustable bed configuration that can tilt and fold. These dynamic elements allow the cart to adapt its volume and shape based on whether it is in use or storage mode, resolving the contradiction between maintaining transporting capability and reducing storage space requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The collapsible cart reduces storage space requirements by up to 70% compared to traditional wheeled transport devices, allowing for easier storage and use, while maintaining functionality for hauling tasks.
Implementation Method 1
at least one retaining wall having a top edge and a bottom edge operatively connected to the base via a rotatable device along the bottom edge
Implementation Method 2
The wheel bracket may be configured to rotate the base to an angle ranging from about 0° to about 180° with respect to the frame
Implementation Method 3
The axle is also operatively connected and rotatable relative to the frame
Data Source
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AI summary
A collapsible cart (10) having a frame (12), a tongue assembly (22), at least one axle (14) and a base (34). The tongue assembly (22) may be configured to releasably couple the frame (12) to a receiver hitch. The axle (14) may be operatively connected to at least one wheel assembly (16). The axle (14) may also be operatively connected and rotatable relative to the frame (12). The base (34) may be operatively connected to the frame (12). The collapsible cart (10) may have at least one retaining wall (24, 26, 28, 30, 32), and/or wheel bracket (17).