Collapsible Wheeled Cart with Integrated Tabletop and Nested Storage
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Solution Overview
Problem
Existing storage and transport solutions lack a versatile, collapsible, and multi-functional design that combines a tabletop surface with wheeled cart functionality, particularly for use in various environments and terrains.
Innovation Solution
A collapsible wheeled cart with a tabletop surface, featuring a framework with adjustable side supports, multiple storage compartments, and a hard, molded plastic tabletop with cup holders and a raised perimeter lip. The cart is designed to be compact for storage and expandable for use, with all-terrain tires for versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the cart is designed to be collapsible for compact storage, then storage space efficiency is improved, but the structural complexity increases
Solution Approach 1:
The framework is divided into multiple collapsible side supports that can be segmented and folded. Each side support is a separate component that can be independently collapsed, allowing the overall structure to be divided into manageable segments for compact storage while maintaining structural integrity when assembled.
Solution Approach 2:
The collapsible side supports are designed to nest within each other when collapsed, similar to nested dolls. This allows the framework to occupy minimal storage space when not in use, while providing full structural support when expanded to the working configuration.
2Quantity of substance
If multiple storage compartments are added to the cart, then storage capacity is improved, but the device complexity increases
Solution Approach 1:
The side supports serve multiple functions: they provide structural support for the framework, act as mounting structures for storage compartments, and enable collapsibility for compact storage. This multi-functionality allows storage capacity to be increased without proportionally increasing structural complexity, as the same structural elements serve dual purposes.
3Adaptability or versatility
If the tabletop is designed with cup holders and raised perimeter lip, then functionality is improved, but manufacturing complexity increases
Solution Approach 1:
The cup holders and raised perimeter lip are integrated into a single molded tabletop component rather than being separate parts. This merging of features into one monolithic structure increases versatility and functionality while simplifying manufacturing, as it can be produced in a single molding process rather than requiring multiple assembly steps.
4Adaptability or versatility
If the cart is designed for all-terrain use, then adaptability is improved, but weight increases
Solution Approach 1:
The cart employs all-terrain tires with modified parameters (tread pattern, rubber composition, air pressure) to improve terrain adaptability. By changing these specific parameters of the tire system rather than redesigning the entire cart structure, the cart gains off-road capability while minimizing the overall weight increase.
Data Source
AI summary
A tabletop supported on the frame, wherein the plurality of storage compartments are provided below the tabletop and wherein the plurality of storage compartments comprise at least one soft-sided bucket for storage and the tabletop comprises a hard flat surface. The tabletop may be provided on a dedicated, collapsible frame or the tabletop may be provided for use with a preexisting wagon or cart.