Stroller Frame Self-Supporting Folded Structure
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Solution Overview
Problem
Conventional foldable stroller frames cannot stand after being folded, requiring additional support mechanisms that are complex and costly, making them inconvenient to use.
Innovation Solution
A stroller frame design featuring handle rods, front and rear leg rods, connecting members, and locking members that allow the frame to fold while maintaining structural integrity, enabling it to stand using a carrier and rear wheels for support without additional mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional foldable stroller frame is designed to reduce storage space, then the stroller can be folded into a smaller volume, but the folded stroller cannot stand and requires additional support mechanisms
Solution Approach 1:
The stroller frame's own structure provides the support function. The handle rod, when extended beyond the locking member during folding, automatically serves as the support element that enables the folded stroller to stand upright, eliminating the need for separate support mechanisms.
Solution Approach 2:
The handle rod performs multiple functions: it serves as both the handling component for pushing the stroller and as the support element when the stroller is folded. This multi-functionality resolves the contradiction by making the existing structure serve dual purposes without adding complexity.
2Reliability
If additional support mechanisms are added to enable the folded stroller to stand, then the stroller can be supported after folding, but the structure becomes more complicated and cost increases
Solution Approach 1:
The support function is provided by the stroller frame's own handle rod rather than an external support mechanism. The handle rod's extension beyond the locking member during folding creates a natural support structure that enables the folded stroller to stand.
Solution Approach 2:
The support function is merged with the existing handle rod structure. Instead of adding a separate support mechanism, the handle rod is designed to serve both its original handling function and the new support function simultaneously.
3Reliability
If the handle rod is extended beyond the locking member during folding, then the folded stroller can stand using the handle rod as support, but the locking mechanism must accommodate this extended position
Solution Approach 1:
The handle rod automatically provides the support function when extended during folding, and the locking member passively accommodates this extension through its design that allows the handle rod to extend beyond it without requiring additional locking adjustments.
Data Source
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AI summary
A stroller frame includes two handle rods (10), a chair (40) disposed between the handle rods (10), two front leg rods (20), two rear leg rods (30), two connecting members (60), and two locking members (70). An upper end (201) of each of the front leg rods (20) is connected pivotally to the chair (40). A front end (301) of each of the rear leg rods (30) is connected pivotally to a lower end (202) of a corresponding one of the front leg rods (20). Each of the connecting members (60) is connected pivotally between one of the rear leg rods (30) and a corresponding one of the handle rods (10). Each of the locking members (70) is disposed at the rear end (302) of a respective one of the rear leg rods (30), and a lower end (101) of each of the handle rods (10) is separably connected to a respective one of the locking members (70).