Expandable Luggage With Rotational Wheels And Zipper-Free Panel
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Solution Overview
Problem
Existing expandable luggage is cumbersome to zip and unzip, prone to zipper breakage due to repetitive use, and lacks rotational mobility while standing, despite advancements in wheeled luggage.
Innovation Solution
A piece of luggage featuring a main body with fiberglass rods or pipes, an expandable body with a ratcheting assembly, rotational wheels, and a pivotable cover, allowing for adjustable capacity and rotational movement along multiple axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If expandable sections are added to increase storage capacity, then the luggage can accommodate more items, but the zipping and unzipping operation becomes cumbersome and zippers are prone to breakage
Solution Approach 1:
The patent removes the zipper component entirely from the expandable section design. Instead of using zippers to open and close expandable sections, the invention uses a panel that can be detached or opened without requiring repetitive zipping and unzipping operations, thereby eliminating zipper wear and breakage while maintaining expandable storage capacity
Solution Approach 2:
The expandable section incorporates a dynamic panel mechanism that allows for easy opening and closing without fixed fastening points like zippers. The panel can be flexibly opened, closed, and repositioned multiple times without degradation, providing adaptability for various access needs while eliminating the mechanical wear associated with traditional zippers
2Adaptability or versatility
If traditional wheeled luggage is designed, then the structure is simple, but the luggage cannot rotate freely while standing
Solution Approach 1:
The patent implements a dynamic wheel system where wheels are mounted on rotatable axles that can pivot relative to the luggage body. This allows the wheels to rotate not only for forward motion but also to enable the luggage to rotate and change orientation while standing, providing multi-directional mobility without significantly complicating the overall structure
Solution Approach 2:
The wheel assembly is segmented into independent rotatable components, with each wheel capable of rotation on its axle and the axles themselves capable of pivoting relative to the luggage frame. This segmentation allows complex rotational movement to be achieved through simple, modular components rather than a monolithic complex mechanism
3Adaptability or versatility
If expandable sections with zippers are used, then storage capacity can be adjusted, but the zippers are prone to breakage due to repetitive use
Solution Approach 1:
The invention completely removes the zipper component from the expandable section design. The expandable panel is opened and closed through alternative mechanisms that do not involve zippers, such as detachable connections or flexible openings, thereby eliminating the reliability issue of zipper breakage while preserving the ability to adjust storage capacity
Solution Approach 2:
The panel connection mechanism is designed to be simple and replaceable rather than relying on durable but complex zipper mechanisms. The connection system uses simple fasteners or flexible joints that can be easily replaced if worn, providing a more reliable long-term solution compared to zippers that gradually degrade with use
Data Source
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AI summary
A piece of luggage is provided. A main body and an expandable body of the luggage are connected to each other by a collapsible portion. The luggage has a cover pivotably connected to the expandable body. A first half of a zipper is fixed to the expandable body and a second half of the zipper is fixed to the cover. The engagement of the first half and the second half closes the cover to the expandable body, and thus a substantially enclosed space is defined by the main body, the expandable body and the cover. The luggage also has multiple rotational wheels mounted to the main body and/or the expandable body. The luggage stands on the rotational wheels and is rotatable with respect to one or more predetermined axes through these wheels.