Stroller Seat Support Articulated Folding Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Foldable strollers face challenges in easy one-handed operation and compact folding due to interference between frame members, particularly between the backrest support and handle structures during folding.
Innovation Solution
The stroller design features a movable seat panel with a pivot mechanism that repositions the backrest support frame, reducing interference with handle structures by altering the spacing between the pivot axis and the main folding axis, allowing unimpeded movement and coordinated folding of the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the backrest support frame is connected to the seat panel at a fixed position, then the structural stability is improved, but the folding operation is impeded by interference with handle structures
Solution Approach 1:
The backrest support frame connection point is made movable relative to the seat panel through an articulated mechanism. This allows the connection position to dynamically adjust during folding operations, moving from a position that provides structural stability during use to a position that clears handle structures during folding, thus resolving the contradiction between stability and ease of operation.
Solution Approach 2:
The connection mechanism between the backrest support frame and seat panel is segmented into multiple articulated joints rather than being a fixed rigid connection. This segmentation allows independent movement of different components during folding, enabling the backrest support to clear handle structures while maintaining structural integrity during normal use.
2Volume of moving object
If the spacing between the pivot axis and main folding axis is reduced, then the folding compactness is improved, but the structural leverage is reduced
Solution Approach 1:
The spacing between the pivot axis and main folding axis is made variable through the articulated mechanism. During folding operations, the spacing dynamically reduces to improve compactness. During normal use, the mechanism maintains optimal spacing for structural leverage. This dynamic adjustment resolves the contradiction between folding compactness and structural leverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables smooth, one-handed folding of the stroller without interference between frame members, enhancing compactness and ease of use by minimizing the distance between pivotal elements during the folding process.
Implementation Method 1
The seat panel includes a movable portion coupled to the seat panel. A back rest support frame is connected to the movable portion at a pivot axis that is spaced-apart from the juncture of the movable portion and the seat panel.
Data Source
AI summary
A foldable stroller frame having right and left front, right and left rear legs, and right and left handle supports joined at a right and left folding joints in a manner permitting folding movement about a folding axis between deployed and folded positions. A seat panel connects the front legs and includes a movable portion being movable between first and second positions. A seat back frame is connected to the movable portion at a seat back pivot. Spacing between the seat back pivot and the folding axis is dependent upon the position of the movable portion. When in the first position, the spacing is greatest and precludes frame folding due to interference between the seat back frame and a transverse element between the handle supports. When in the second position, spacing is minimized and frame folding is permissible without interference between the seat back frame and the transverse element.