Adjustable Length Accessory Bag With Reinforced Sidewalls
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Solution Overview
Problem
Existing non-adjustable sports equipment bags fail to accommodate variable length gear, leading to inefficient transportation, increased wear, and inadequate protection, especially during airline travel, where equipment can move and cause damage due to mismatched bag lengths.
Innovation Solution
An adjustable length system with connection rails and a handle that maintains bag tension through webbing and buckles, creating a rigid structure with three-stage rib construction for enhanced protection and efficient rolling, allowing the bag to adapt to different equipment sizes and maintain shape regardless of packing status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the bag length is fixed and longer than the equipment, then the bag structure remains stable, but the bag cannot roll properly and fabric wear increases
Solution Approach 1:
The patent implements an adjustable length system with movable buckles that allow the bag length to be dynamically changed according to equipment size. This resolves the contradiction by enabling the bag to adapt its length: when matched to equipment, the bag maintains stability; when adjusted shorter, the bag can roll properly on wheels without fabric dragging.
2Ease of manufacture
If the bag length is fixed, then manufacturing is simpler, but the bag cannot accommodate variable equipment lengths
Solution Approach 1:
The patent divides the bag into modular sections with connection rails and adjustable buckles at specific intervals. This segmentation allows the bag to be manufactured in standard sizes while providing flexibility to adjust the effective length by moving buckles along the connection rails, thus accommodating variable equipment lengths without completely redesigning the bag structure.
Solution Approach 2:
The adjustable buckle system transforms a static fixed-length bag into a dynamic variable-length bag. The buckles can be repositioned along the connection rails to match different equipment lengths, providing adaptability while maintaining relatively simple manufacturing processes.
3Reliability
If the bag is longer than the equipment, then the equipment is protected from movement, but the bag takes up excessive space when not in use
Solution Approach 1:
The adjustable length system allows the bag to be compacted to a minimal size when not in use by moving all buckles to the same position and collapsing the bag structure. When in use, the buckles are positioned to match the equipment length, providing necessary protection while minimizing unused space.
4Device complexity
If non-adjustable bags are used, then device complexity is reduced, but the bag structure becomes non-linear and drags on the ground
Solution Approach 1:
The adjustable buckle system adds minimal complexity to maintain structural linearity. By allowing the bag length to be adjusted to match equipment length, the bag maintains a linear structure that rolls properly on wheels rather than dragging, resolving the contradiction between simplicity and structural integrity.
Data Source
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AI summary
An accessory bag includes a bottom wall (20), a front wall (12) and a back wall (14). The wall is made of flexible material. A pair of side walls extends between the front wall (12) and back wall (14). A first pair of connection rails (56) extends along the front wall (12). A second pair of connection rails (66) extends along the back wall (14). A connection handle (40) includes a first end and a second end. A first connector (48) on the first end is configured to cooperate with the first pair of pair of connection rails (56). A second connector (48) on the second end is configured to cooperate with the second pair of connection rails (66). In addition, the connection handle (40) includes a handle (46).