Ultralight Suitcase Framework with Interconnected Connectors
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Solution Overview
Problem
Existing lightweight suitcases have a fragile framework due to insufficient connection between components, leading to instability and inconvenience in use, particularly with non-adjustable pull rods lacking locking mechanisms.
Innovation Solution
A combined type ultralight suitcase design featuring interconnected upper and lower connectors, corner connectors, and adjustable supporting connectors, along with locking pieces for the pull rods, enhances structural firmness and usability without increasing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional connecting rods and connectors are used to form the case framework, then the suitcase weight is reduced, but the framework fastness and stability deteriorate
Solution Approach 1:
The patent combines multiple connectors (upper connectors, lower connectors, corner connectors) with supporting connectors into an integrated case framework structure. The supporting connectors connect the upper and lower connectors as well as the corner connectors, creating a unified and reinforced framework that maintains lightweight properties while significantly improving structural fastness and stability.
2Device complexity
If traditional extension pull rods without locking pieces are used, then the suitcase structure is simpler, but the ease of operation deteriorates due to non-adjustable positions
Solution Approach 1:
The patent transforms the static pull rod structure into a dynamic, adjustable system by incorporating locking pieces that can engage with different positions on the pull rod. This allows the pull rod to be extended or retracted to various lengths and locked at desired positions, providing adaptability for different usage scenarios while maintaining relatively simple overall structure.
3Manufacturing precision
If lining boards are added to ensure tight coating of case material, then the manufacturing precision improves, but the device complexity and weight increase
Solution Approach 1:
The patent segments the case framework into multiple functional components (upper connectors, lower connectors, corner connectors, supporting connectors) that work together to provide structural support and enable tight coating of case material without requiring additional lining boards. This segmentation allows each component to be optimized for its specific function while collectively achieving the desired manufacturing precision.
Data Source
AI summary
An ultralight suitcase comprises a case framework, case material, pull rods, wheels and supporting legs. The case framework comprises upper connectors, lower connectors, upper corner connectors and lower corner connectors; the bottom parts of the lower corner connectors are connected with the supporting legs; the upper connectors and the lower connectors are connected through supporting connectors; the upper corner connectors and the lower corner connectors are connected through supporting connectors; the upper connectors are connected through supporting connectors; the lower connectors are connected through supporting connectors; the upper corner connectors are connected through supporting connectors; the lower corner connectors are connected through supporting connectors; the whole framework of the case is firmer through the buckling connection between the upper corner connectors and the upper connectors and between the lower corner connectors and the lower connectors, and the total weight of the suitcase remains unchanged.