Adjustable Size Suitcase with Telescopic Frame and Actuator
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Solution Overview
Problem
Travelers face challenges with fixed-size luggage options, as they often need to switch between 'carry-on' and 'full-sized' bags depending on trip requirements, leading to increased fees and inefficient use of space.
Innovation Solution
An adjustable size suitcase with a frame system comprising upper, middle, and lower frame assemblies, along with a telescopic handle and omnidirectional wheels, allows users to transition between 'carry-on', 'medium', and 'large' sizes through a mechanical linkage system, enabling easy size adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If travelers use fixed-size luggage options, then they can choose between carry-on and full-sized bags, but they face increased fees and inefficient space usage when trip requirements change
Solution Approach 1:
The patent implements a dynamic luggage system where the frame assemblies can transition between different size configurations. The upper, middle, and lower frame assemblies are designed to move relative to each other, allowing the suitcase to transform from a compact carry-on size to an expanded full-size configuration, providing adaptability without requiring multiple separate luggage pieces
Solution Approach 2:
The luggage is divided into distinct frame assemblies (upper, middle, lower) that can independently move and adjust. This segmentation allows each frame section to be positioned at different heights, enabling the overall luggage size to be customized for different travel needs while using a single integrated structure
2Adaptability or versatility
If travelers switch between carry-on and full-sized bags, then they can match luggage size to trip requirements, but they incur increased airline fees
Solution Approach 1:
The patent creates a universal luggage piece that can serve multiple size functions. By incorporating adjustable frame assemblies that can be positioned in different configurations, a single suitcase can function as both carry-on and full-sized luggage, eliminating the need to pay additional fees for checking a separate full-sized bag when trip requirements change
3Ease of manufacture
If fixed-size luggage is used, then manufacturing and design are simplified, but space usage efficiency decreases when travel needs vary
Solution Approach 1:
The patent introduces dynamic adjustment capabilities to the luggage design, allowing the frame assemblies to move between positions. This enables the same basic structure to optimize space usage for different travel scenarios - whether maximizing capacity for long trips or minimizing size for carry-on requirements - without requiring completely different luggage designs
Data Source
Figure 1A~1C
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AI summary
An adjustable size suitcase includes a main body having a top section, a middle section and a bottom section that define a hollow interior space. A telescopic handle extends upward from the main body and a plurality of omnidirectional wheels are positioned along the bottom end of the main body. A frame is positioned within the hollow interior space of the main body and includes an upper frame assembly, a middle frame assembly and a lower frame assembly. The upper frame assembly includes a plurality of vertical frame members that are slidingly engaged to complementary located lower vertical frame members to permit vertical movement of the upper frame assembly relative to the lower frame assembly. An actuator is mechanically linked to a plurality of latches positioned within the bottom ends of each upper vertical frame member to selectively transition the suitcase between a first, second and third size.