Stroller Folding Linkage for Compact Non-Interfering Collapse
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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 front and rear leg frames and a handlebar frame, along with a folding mechanism using connecting rods and a linkage rod to smoothly transition between unfolded and folded states, minimizing interference and reducing volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional folding mechanisms are used for stroller frame and storage basket, then folding function is provided, but the folding operations interfere with each other causing complicated operation and difficulty in folding
Solution Approach 1:
The patent combines the frame folding mechanism and storage basket folding mechanism into a single integrated folding system. The linkage rod connects both mechanisms so that one folding action simultaneously folds both the frame and storage basket, eliminating interference between separate folding operations and simplifying the user interaction.
Solution Approach 2:
The linkage rod acts as an intermediary element that coordinates between the frame folding mechanism and storage basket folding mechanism. It transfers motion and ensures synchronized folding of both components, preventing operational interference while maintaining independent controllability.
2Volume of moving object
If traditional folding mechanisms are used, then folding function is provided, but the folding process lacks smoothness and causes large volume after folding
Solution Approach 1:
The patent employs dynamic linkage mechanisms that adapt during the folding process. The linkage rod and connecting rods create a dynamic motion path that gradually reduces the volume while maintaining smooth movement throughout the folding sequence, avoiding abrupt changes that would increase folded volume or reduce smoothness.
Solution Approach 2:
The storage basket is designed to nest within or alongside the frame structure during folding. The integrated mechanism allows the storage basket to be positioned more compactly relative to the frame when folded, reducing the overall folded volume while maintaining operational smoothness through coordinated motion.
Data Source
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AI summary
The present disclosure relates to a stroller (1000) including a frame body (100) and a folding mechanism (300). The frame body (100) includes a handlebar frame (130), a rear leg frame (110) pivotally connected to the handlebar frame (130) to form a first pivot point (X1), and a front leg frame (120) pivotally connected to the handlebar frame (130) to form a second pivot point (X2). The folding mechanism (300) includes: a first connecting rod (310) pivotally connected to the rear leg frame (110); a second connecting rod (320) pivotally connected to the first connecting rod (310) and the front leg frame (120) respectively at second and third pivotable connection points (S2, S3); and a linkage rod (330) pivotally connected to the first connecting rod (310) and the front leg frame (120) respectively at first and second rotation points (R1, R2). The second rotation point (R2) is located between the second pivot point (X2) and the third pivotable connection point (S3). The linkage rod (330) is adapted to drive the first connecting rod (310) to rotate.