Polymeric Retail Cart Assembly for Lightweight Rigid Shelving
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Solution Overview
Problem
Conventional retail carts with metal frames are heavy and require specialized tools for assembly and mobility, making them difficult to maneuver and assemble.
Innovation Solution
A polymeric retail cart with a lightweight, injection molded frame that includes mobile transport rollers, side attachment members with shelf receiving channels, and stabilizers, allowing for easy assembly and disassembly without tools, and providing structural rigidity for supporting shelving units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal frames are used for retail carts, then structural rigidity is improved, but weight increases and ease of operation deteriorates
Solution Approach 1:
The patent changes the material parameter from metal to polymeric material, transforming the cart from heavy metal construction to lightweight polymeric construction while maintaining structural integrity through proper polymer selection and design
Solution Approach 2:
The patent employs composite polymeric materials that combine strength and rigidity properties with lightweight characteristics, creating a material structure that achieves both structural requirements and weight reduction goals
2Strength
If metal frames are used for retail carts, then structural rigidity is improved, but device complexity increases due to specialized assembly tools required
Solution Approach 1:
The polymeric cart components are designed with self-assembling features that eliminate the need for specialized tools, allowing users to assemble and disassemble the cart themselves through simple manual operations
Solution Approach 2:
The cart is divided into modular polymeric components that can be easily separated and reconnected without tools, simplifying the assembly process while maintaining overall structural rigidity
3Strength
If metal frames are used for retail carts, then structural rigidity is improved, but ease of operation deteriorates due to difficulty in maneuvering
Solution Approach 1:
The patent changes the weight parameter by using polymeric materials instead of metal, directly reducing the cart's weight and improving ease of maneuvering while maintaining structural rigidity through polymer design
Data Source
AI summary
A retail cart for use in storing and stocking merchandise and, more particularly, to a mobile polymeric retail cart which is easily assembled and disassembled without the need for tools having opposing forces in its construction lending rigidity to the overall structure and a plurality of slideably received shelving units.