Segmented Duffle Bag Single Strap Weight Distribution
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Solution Overview
Problem
Conventional sports bags with two straps become unbalanced and cumbersome when unzipped, limiting the distribution and balancing of weight during different carrying configurations.
Innovation Solution
A dual chamber bag with a single continuous strap that can slide through D-ring assemblies, allowing the bag to be carried and opened freely, and divided into quarter sections for flexible waist-wearing and shoulder-harness functionality, with an optional belt for securing the bag around the waist.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two straps are used for carrying the bag, then the bag can be carried in conventional configurations, but the weight distribution becomes unbalanced and cumbersome when the bag is unzipped or separated
Solution Approach 1:
The single strap is divided into multiple sections with adjustable lengths, allowing different segments to be positioned at different locations on the bag. This segmentation enables the strap to adapt to various carrying configurations while maintaining proper weight distribution, solving the problem of unbalanced weight when the bag is unzipped or separated.
Solution Approach 2:
The strap incorporates adjustable and movable components that allow users to dynamically reposition and reconfigure the strap according to different carrying needs. This dynamic adjustment capability ensures optimal weight balancing whether the bag is fully zipped, partially unzipped, or completely separated into sections.
2Adaptability or versatility
If the bag is divided into separable sections, then compartmentalization and organization are improved, but the strap becomes interfering and limits full separation and opening
Solution Approach 1:
The strap is designed as a segmented system with multiple attachment points and adjustable sections rather than a single continuous strap. This allows the strap to accommodate full separation of bag sections while remaining attached, enabling complete opening and compartmentalization without interference.
Solution Approach 2:
The strap's effective length and configuration parameters can be changed through adjustment mechanisms, allowing it to adapt when the bag transitions from a closed state to a fully separated state. This parameter flexibility ensures the strap does not interfere with full separation while maintaining carrying functionality.
3Ease of manufacture
If conventional duffle bag design is used, then manufacturing is straightforward, but the bag becomes long and cumbersome in longer sizes especially when halves are separated
Solution Approach 1:
The bag is divided into modular sections that can be connected or separated, and the single strap is designed with corresponding segmentation to match. This modular approach allows the bag to maintain a compact form when connected while enabling easy separation into smaller, more manageable sections, reducing the cumbersome nature of long duffle bags.
Solution Approach 2:
The single strap design serves multiple functions: it can carry the bag in various configurations (over shoulder, crossbody, handheld), accommodate different bag configurations (zipped, unzipped, separated), and adapt to different user preferences. This multi-functionality replaces the need for multiple dedicated straps while simplifying the overall design.
Data Source
AI summary
A segmented duffle bag with a single continuous strap. A cylindrical duffle bag with two segments secured together with diametrically opposed longitudinal zippers. A multi-segmented duffle bag with two semi-cylindrical segments secured together with longitudinal zippers and each semi-cylindrical segment having quarter sections secured together with an annular zipper. The single continuous strap functions as a hand grip or a shoulder strap and maintains the connectivity of the duffle bag segments even when separated.