Extensible Beach Wagon Side Walls for Water Sport Board Transport
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Solution Overview
Problem
Existing beach wagons struggle to efficiently transport both small and large items, particularly water sport boards, over sandy surfaces, as they often lack the necessary adjustability and stability to accommodate different board widths and sizes.
Innovation Solution
A manually steerable beach wagon with a pivotable front wheel assembly and fixed rear wheel assembly, featuring extensible side walls that can be adjusted to accommodate water sport boards, along with fabric sleeves for retaining loose articles, providing slots for secure board support and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wagon has fixed side walls, then the structure is simple and stable, but it cannot accommodate water sport boards of different widths
Solution Approach 1:
The side walls are made extensible through telescoping support members that can extend and retract, allowing the wagon to dynamically adjust its width to accommodate different board sizes while maintaining structural integrity
Solution Approach 2:
The side wall assembly is divided into multiple segments including telescoping support members and adjustable panels that can be independently positioned to create custom configurations for different board widths
2Adaptability or versatility
If the side wall assemblies are extended to support water sport boards, then the wagon can carry large items, but the device complexity increases
Solution Approach 1:
The side wall assemblies transition from a static to a dynamic structure with telescoping support members that can extend to provide board support surfaces and retract when not needed, enabling multi-functionality without permanent complexity
Solution Approach 2:
The extensible side wall assemblies serve multiple functions: they provide structural support for water sport boards, create defined slots for board insertion, and can be configured to accommodate different board widths, all within a single integrated mechanism
3Adaptability or versatility
If the wagon is designed to carry only small items, then the structure remains compact, but it cannot transport water sport boards
Solution Approach 1:
The side wall assemblies are designed to be easily extendable and retractable through a simple latch mechanism, allowing users to quickly transform the wagon between compact mode for small items and extended mode for water sport boards
Data Source
AI summary
A wagon for transporting beach articles and elongated water sport boards has a bed with a peripheral frame with two cross tubes beneath a bottom wall. The frame is carried on front and rear wheel assemblies. Front and rear walls are mounted to the frame, and side walls are adjustably positioned with respect to the frame. Each side wall has two tubular extensible support members which telescope within the frame cross members. When a side wall is positioned outwardly, the extensible support members are positioned to receive a water sport board thereon, such that it extends through front and rear slots defined between the front and rear walls and the extended side wall. A latch is associated with each side wall and actuatable to alternatively secure or release the wall. The latch may be a clamp with an elastomeric plug expandable from an extensible support member withing a cross member.