Foldable Stroller with Tensioned Textile Base and Hood
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Solution Overview
Problem
Existing foldable strollers are not suitable for transporting newborn babies, as they are designed for children facing the direction of travel and lack a protective hood, and when used with bassinets, these bassinets must be removed for folding, compromising compactness.
Innovation Solution
A flat-foldable stroller with a protective hood that unfolds automatically and is tensioned when deployed, allowing newborns to face their parent, featuring a reversible backrest and textile base with tensioners that relax during folding to minimize size, and an adjustable back plate for support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a bassinet is added to transport newborns, then newborn transportation capability is improved, but the bassinet must be removed for folding, compromising compactness
Solution Approach 1:
The patent integrates the bassinet directly into the stroller structure, making it an inherent component rather than a separate attachment. The bassinet shares the stroller's folding mechanism and structural elements, allowing it to fold automatically with the stroller without requiring removal, thus maintaining compactness while enabling newborn transportation
Solution Approach 2:
The stroller structure is designed to serve multiple functions: it can transport newborns in the bassinet configuration and older children in the seat configuration. The unified structure and folding mechanism serve both purposes, eliminating the need for separate devices and maintaining compact folding for both modes
2Object-affected harmful factors
If a protective hood is added for newborn protection, then protection capability is improved, but device complexity increases
Solution Approach 1:
The protective hood is constructed from flexible textile material that can be tensioned and deployed without rigid structural components. This flexible shell approach provides effective protection against environmental factors while avoiding the complexity of mechanical support structures, hinges, or adjustment mechanisms
Solution Approach 2:
The hood utilizes the existing tensioner system of the stroller to deploy and tension itself automatically when the stroller is unfolded. The tensioners, which are already present for the textile base, double as the deployment mechanism for the hood, eliminating the need for separate deployment mechanisms and reducing overall complexity
3Ease of operation
If tensioners are used to deploy the textile base, then deployment ease is improved, but the hood must be separately secured, increasing complexity
Solution Approach 1:
The tensioner system serves dual functions: it deploys and tensions the textile base while simultaneously securing and deploying the protective hood. The same mechanical elements perform multiple operations, eliminating the need for separate securing mechanisms for the hood and maintaining ease of operation
Solution Approach 2:
The hood is designed to be automatically secured and deployed by the tensioner system during the unfolding process. As the tensioners tighten the textile base, they naturally tension and secure the hood in place, making the hood securing process automatic and eliminating manual intervention or additional mechanisms
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 easy and compact folding while providing a protective environment for newborns, maintaining the same structure for both forward-facing and parent-facing positions without disassembly, and ensuring the hood deploys automatically upon unfolding.
Implementation Method 1
tensioners for setting tensioning of a front part of the textile base... when folding, the forward tilting of the push rods allows the tensioners to be relaxed, causing the front part of the textile base and the protective cover to fold up
Implementation Method 2
a joint for folding the stroller flat
Implementation Method 3
front legs 3, 3' equipped with rolling means 4, 4', rear legs 5, 5' Equipped with rolling means 6, 6'
Data Source
AI summary
The invention relates to a stroller including two push member uprights (1, 1'), front legs (3, 3'), rear legs (5, 5'), seat brackets (7, 7'), a backrest (2) and joints (31-35, 41-47) for folding the stroller flat. The stroller also includes a textile base (16), tensioners (18, 18') for applying tension to a front portion (16a) of the textile base (16), a hood (19) with a main arch (20) and attachment elements (23, 23') enabling the main arch (20) to be secured, for example to a point for securing the front portion (16a) of the textile base (16) next to the tensioners. In the unfolded position, the backrest (2) is held against the seat brackets (7, 7') and can hold a child in a lying position by being turned toward the rear of the stroller. In the unfolded position, the tensioners (18, 18') are under tension and enable the extension of the front portion (16a) of the textile base (16) and of the protective hood (19).