Stroller Folding Linkage to Reduce Frame Interference
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Solution Overview
Problem
The folding mechanisms of strollers often interfere with each other, leading to complicated operation, difficulty in folding, and a large volume after folding, compromising convenience and practicality.
Innovation Solution
A stroller design featuring a frame body with pivotally connected leg frames and a folding mechanism using connecting rods and a linkage rod to smoothly switch between unfolded and folded states, with limiting portions and recessed structures to minimize interference and facilitate storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a folding mechanism is provided to allow the stroller frame to be folded, then the stroller can be compacted for storage, but the folding operation becomes complicated and difficult to perform smoothly
Solution Approach 1:
The folding mechanism is divided into multiple independent connecting rods (first connecting rod, second connecting rod, third connecting rod) each responsible for a specific folding action. This segmentation allows each rod to perform its folding function independently, simplifying the overall operation and enabling smooth folding without complex interactions between different folding components.
Solution Approach 2:
A linkage rod is introduced as an intermediary component that connects and coordinates the movements of the first, second, and third connecting rods. The linkage rod ensures that all connecting rods move in coordination during folding, transforming a complex multi-step folding process into a single smooth operation while maintaining compactness.
2Volume of moving object
If the stroller frame is folded to reduce volume, then storage space is saved, but the folding process creates interference between different folding mechanisms
Solution Approach 1:
The folding mechanism is segmented into multiple independent connecting rods (first connecting rod, second connecting rod, third connecting rod) each responsible for a specific folding action. This segmentation allows each rod to perform its folding function independently, simplifying the overall operation and enabling smooth folding without complex interactions between different folding components.
Solution Approach 2:
A linkage rod is introduced as an intermediary component that connects and coordinates the movements of the first, second, and third connecting rods. The linkage rod ensures that all connecting rods move in coordination during folding, transforming a complex multi-step folding process into a single smooth operation while maintaining compactness.
3Ease of operation
If a storage basket with accommodation space is positioned beneath the stroller seat, then user burden is reduced, but the storage basket folding interferes with the frame folding
Solution Approach 1:
The storage basket folding mechanism is merged with the frame folding mechanism by using the same connecting rods and linkage rod to control both the frame folding and storage basket folding. This merging allows both components to be folded simultaneously in a coordinated manner, eliminating interference between the two folding operations while maintaining user convenience.
Solution Approach 2:
The connecting rods and linkage rod serve multiple functions: they control the folding of the frame legs and simultaneously control the folding of the storage basket. This multi-functionality eliminates the need for separate folding mechanisms, reducing complexity and preventing interference between frame folding and storage basket folding.
Data Source
AI summary
The present disclosure relates to a stroller including a frame body and a folding mechanism. The frame body includes a handlebar frame, a rear leg frame pivotally connected to the handlebar frame to form a first pivot point, and a front leg frame pivotally connected to the handlebar frame to form a second pivot point. The folding mechanism includes: a first connecting rod pivotally connected to the rear leg frame; a second connecting rod pivotally connected to the first connecting rod and the front leg frame respectively at second and third pivotable connection points; and a linkage rod pivotally connected to the first connecting rod and the front leg frame respectively at first and second rotation points. The second rotation point is located between the second pivot point and the third pivotable connection point. The linkage rod is adapted to drive the first connecting rod to rotate.