Convertible Beach Chair with Hinged Frame for Multi-Mode Transport
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Solution Overview
Problem
Existing foldable wheeled devices fail to serve multiple functions as a multi-configured wheeled chair, dolly, and flat wagon cart simultaneously, lacking versatility and adaptability for various activities.
Innovation Solution
A wheeled device with a rigid frame featuring hinged parts that allow for multiple configurations, including a multi-mode beach chair, standard vertical dolly, and flat 2-wheeled wagon, equipped with swiveling handles and optional features like solar-powered USB ports and accessories for specialized activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a foldable beach chair is designed to collapse into a compact cart, then portability is improved, but the device can only serve as a chair or cart, not as a dolly
Solution Approach 1:
The device is designed with a universal frame structure that can function as a beach chair, shopping cart, or dolly by reconfiguring the same components. The rigid frame with telescoping sections and interchangeable platforms allows one device to replace multiple specialized tools, achieving multi-functionality without adding separate systems.
Solution Approach 2:
The device is divided into modular segments including a rigid frame with telescoping sections, interchangeable platforms (chair platform, cart platform, dolly platform), and common components like handles and wheels. This segmentation allows each mode of operation to be achieved by assembling different platforms onto the same frame, reducing overall complexity while maintaining versatility.
2Adaptability or versatility
If a beach chair is made fully adjustable with multiple positions, then comfort and adaptability are improved, but the mechanism becomes more complex
Solution Approach 1:
The chair platform incorporates dynamic adjustment mechanisms including telescoping footrests, adjustable backrests, and reconfigurable armrests that can be easily moved between positions. These dynamic elements allow the chair to adapt to different user needs and activities while using simple mechanical adjustments rather than complex electronic or hydraulic systems.
3Adaptability or versatility
If a wheeled device is designed to convert between multiple modes, then versatility is improved, but the conversion process becomes more complex
Solution Approach 1:
The device includes pre-configured attachment points, alignment features, and quick-release mechanisms that prepare the frame for rapid platform interchange. The telescoping sections are pre-positioned to align with platform mounting points, and the handle assemblies are designed for quick detachment and reattachment, enabling mode conversions without complex assembly procedures.
Data Source
AI summary
A wheeled device that converts between a multi-mode beach chair and a standard vertical dolly. It can also be used as a flat 2-wheeled wagon. A rigid frame includes at least two parts coupled by hinges, a first part (long part) that can fold to different lengths, and a second part (short part). There is a swiveling top handle on the end of the long part, and a swiveling bottom handle on the end of the short part. In a long chair mode, the long part is fully extended; in the short chair mode, it is folded and In the dolly mode, the short part forms the bottom of the dolly.