Movable Container System With Retractable Straps
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Solution Overview
Problem
Existing wheeled container systems, such as carry-on luggage, lack an efficient and easy way to securely store and carry additional items once the luggage is packed, as they can become unsecure or fall if the extra items are heavy or not properly accommodated.
Innovation Solution
A wheeled container system with retractable straps and a motorized option that includes wheels, a handle, and a strap mechanism for securing additional items, featuring a tensioning system and locking mechanism to ensure stability and secure attachment of items to the container body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If additional items are carried on the wheeled container system using external straps, then the carrying capacity is improved, but the security and stability of the container deteriorates when the items are heavy or improperly secured
Solution Approach 1:
The patent employs retractable straps that can dynamically adjust their length and tension based on the size and weight of additional items being carried. The straps can be extended to accommodate larger items and retracted when not in use, providing adaptive security rather than fixed positioning. This dynamic adjustment allows the system to maintain reliability across varying load conditions.
Solution Approach 2:
The strap mechanisms incorporate tensioning systems that can adjust the tightness and securing force of the straps. By changing the tension parameter, the system can securely hold both light and heavy items without compromising stability. The adjustable parameters include strap length, tension force, and anchoring position, allowing optimization for different carrying scenarios.
2Ease of operation
If retractable strap mechanisms are added to secure additional items, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The retractable strap mechanisms are designed to be self-operating through spring-loaded or elastic recoil systems that automatically retract the straps after extension. The tensioning systems can automatically adjust and maintain optimal tension without requiring manual intervention. This self-service capability simplifies user interaction while the internal mechanisms handle the complexity of retraction and tension maintenance.
Solution Approach 2:
The strap system is divided into independent modular units, each with its own retractable mechanism and tensioning system. This segmentation allows each strap to operate independently, simplifying the control interface for users while distributing the mechanical complexity across separate, manageable modules rather than a single complex integrated system.
3Adaptability or versatility
If multiple straps and fastening devices are provided, then the adaptability to secure various items is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent designs the strap mechanisms and fastening devices to serve multiple functions: securing items to the container, adjusting to different item sizes, providing tension control, and enabling easy attachment/detachment. By making each component multi-functional, the system achieves high adaptability without proportionally increasing the number of different component types, thus managing manufacturing complexity.
Solution Approach 2:
The strap mechanisms are designed with homogeneous structures and materials across different locations on the container. Rather than using different types of straps and fasteners for different items, the system employs consistent design patterns and components throughout, which simplifies manufacturing processes, reduces part variety, and maintains adaptability through standardized adjustable features.
Data Source
AI summary
A movable, e.g., wheeled, container, system, such as an article of luggage, cooler or other wheeled container, can include a container body with an openable lid. The system can include one or more wheels secured to the container body and a handle that extends from the container body. The system can include one or more strap mechanisms attached to the interior of the container body. Each strap mechanism can provide a retractable strap to extend from the container body. Each strap can be extended over an item to be secured to an exterior surface of the container body. An extended end of each strap can be secured to a fastening device located on an exterior surface of the container body. The wheels may be driven by motors that can be controlled by a user. A movable container system can be releasably attached to one or more other movable container systems.