Baby Stroller Basket Avoidance Mechanism for Jam-Free Folding

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Solution Overview

Problem

Existing baby stroller frames face issues with complicated folding and unfolding mechanisms that often result in jamming between the basket tube and the backrest tube, hindering smooth operation.

Innovation Solution

A basket avoidance mechanism featuring a fixing member and a locking member on the first and second tubing, respectively, allowing the second tubing to unfold or fold smoothly by avoiding interference with other tubes through controlled abutment and separation, facilitated by a sliding locking member and elastic member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the basket tube is allowed to fold freely with the frame, then the folding motion is simple, but the basket tube interferes with the backrest tube causing jamming

Engineering Contradiction:
Improvefolding operationVSAvoidjamming between basket tube and backrest tube
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The basket tube is preliminarily folded to a predetermined position before the backrest tube completes its folding motion. This preliminary action ensures that the basket tube is out of the way before the backrest tube arrives at its folded position, preventing jamming while maintaining simple folding operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The basket tube is designed with dynamic positioning capability, allowing it to change its position from extended to folded state during the folding process. This dynamic adjustment enables the basket tube to avoid interference with the backrest tube while maintaining ease of operation.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If a mechanism is added to control the basket tube folding, then jamming is prevented, but the structure becomes complicated

Engineering Contradiction:
Improvejamming preventionVSAvoidfolding mechanism structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The basket tube folding control mechanism is merged with the existing frame folding mechanism. The same folding action that folds the backrest tube also automatically folds the basket tube to the correct position, eliminating the need for separate control mechanisms and reducing structural complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The basket tube automatically folds to the correct position through its own weight and the folding motion, without requiring external control mechanisms. The structure uses the existing folding force to achieve both the backrest tube folding and basket tube positioning, simplifying the overall design.

Inventive Principle:
Principle #25Self-service

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

Ensures smooth unfolding and folding of the frame by preventing jamming between the basket tube and other components, maintaining a simple structure.

Implementation Method 1

when the first tubing is unfolded, the second tubing is in an unfolded position under a support of the first tubing by an abutment of the abutting part against the abutted part

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

a sliding locking member and elastic member

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS20250333093A1Basket avoidance mechanism and baby stroller frame
Publication Date: 2025.10.30 WONDERLAND SWITZERLAND AG
  • US20250333093A1 patent drawing
  • US20250333093A1 patent drawing
  • US20250333093A1 patent drawing

AI summary

This disclosure provides a basket avoidance mechanism including a first tubing, a second tubing, a fixing member arranged on first tubing and a locking member arranged on the second tubing. The fixing member extends towards the locking member towards the locking member to form an abutting part, and the locking member extends corresponding to the abutting part to form an abutted part. When the first tubing is unfolded, the second tubing is in an unfolded position under a support of the first tubing by abutment of the abutting part against the abutted part; and when the first tubing is folded, the second tubing is folded to a folded position by avoiding abutment of the abutting part against the abutted part. The basket avoidance mechanism enables the basket tube to be unfolded or folded smoothly, and its structure is simple. A baby stroller frame is also provided.