Segmented Wheelbarrow Handle for Compact Shipping
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Solution Overview
Problem
Conventional wheelbarrow assemblies are typically sold assembled, requiring significant retail space and resulting in multiple boxes for shipping, which increases costs and inconvenience for customers, as they cannot be compactly packaged for direct-to-consumer shipping.
Innovation Solution
A multi-piece handle assembly design with tubular handle portions of varying cross-sections and a collar system allows for disassembly and compact packaging, enabling all components to fit within a single shipping box, with the first handle portion having a reduced cross-section swaged portion and the second handle portion with a square cross-section for assembly, and a collar to minimize contact, ensuring the assembled handles do not exceed 32 inches in length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wheelbarrow assemblies are sold assembled, then functionality and ease of operation are improved, but retail space requirements and shipping costs increase
Solution Approach 1:
The handle assembly is divided into multiple segments (first handle portion and second handle portion) that can be disassembled and stored separately, reducing the overall volume when not in use while maintaining full functionality when assembled
2Ease of operation
If wheelbarrow assemblies are sold assembled, then ease of operation is improved, but shipping costs and packaging complexity increase
Solution Approach 1:
The handle assembly is segmented into removable portions that can be packaged separately, allowing for more efficient use of shipping space and reduced packaging material requirements
Solution Approach 2:
The collapsible handle portions can be nested or stored within the wheelbarrow body or other components, eliminating the need for separate packaging boxes and reducing overall shipping volume
3Volume of moving object
If handle assemblies are made collapsible with multiple portions, then shipping compactness is improved, but device complexity increases
Solution Approach 1:
The handle assembly is divided into a first handle portion and a second handle portion that can be selectively assembled or disassembled, allowing for compact storage while maintaining structural integrity during use
Solution Approach 2:
The handle assembly transitions from a static, fixed-length structure to a dynamic, adjustable-length structure that can be collapsed or extended based on usage requirements
Data Source
AI summary
A wheelbarrow assembly is disclosed with a wheelbarrow tray, a wheel to connect to the tray for rotation relative to the tray, for transportation of the tray upon an underlying support surface and a pair of handle assemblies. Each handle assembly is provided with a first unitarily formed handle portion with a distal end, an intermediate region, and a proximal end. The proximal end has a cross-section that is reduced relative to a cross-section of the intermediate region. The second handle portion is provided with a distal end and a proximal end; the proximal end having a cross-section that is sized to receive the first handle distal end cross-section therein to assemble the second handle portion to the first handle portion.