Telescoping Wagon Frame for Adjustable Load Configurations
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Solution Overview
Problem
Existing wagons lack an efficient mechanism for adjustable configurations, limiting their versatility and practicality in various applications.
Innovation Solution
A double-decker wagon with a frame that includes vertically oriented telescoping pole assemblies and lateral side cross-member assemblies, allowing the wagon to be adjusted between collapsed, intermediate, and expanded configurations through the movement of extension members and sliders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-size wagon structure is used, then the manufacturing and operation are simple, but the versatility and adaptability to different load sizes are limited
Solution Approach 1:
The patent applies the dynamics principle by implementing a telescoping frame structure that can change its dimensions. The frame includes extendable side members with telescoping mechanisms that allow the wagon to transition between collapsed and expanded configurations, enabling adaptation to different load sizes while maintaining operational simplicity through mechanical linkages
2Adaptability or versatility
If a telescoping frame mechanism is implemented, then the versatility for different configurations is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the frame into modular components including telescoping side members, adjustable cross members, and separable wheel assemblies. This modular design allows the complex telescoping function to be achieved through simpler, standardized components that can be manufactured and assembled independently
Solution Approach 2:
The patent implements the nested doll principle through the telescoping side members where one structural element is inserted within another. The extendable side members feature nested tubular sections that slide within each other, allowing compact storage in the collapsed state while providing extended dimensions when needed, thus managing complexity through space-efficient design
Data Source
AI summary
A wagon is adjustable between a collapsed configuration, an intermediate configuration, and an expanded configuration. The frame has a vertical pole assembly arranged at each of the four corners of the frame. Each of the vertical pole assemblies comprises an extension member telescopically arranged with a fixed member and a slider operatively slidingly connected with the fixed member. When the frame is altered from the expanded configuration to the intermediate configuration, the slider of each vertical pole assembly moves away from the distal end of the fixed member toward the proximal end of the fixed member and the extension member moves from the raised position to the lowered position. When the frame is altered from the intermediate configuration to the collapsed configuration, the extension member moves from the lowered position to the raised position with the slider at or adjacent to the proximal end of the fixed member.