Detachable Brace for Collapsible Stroller Single-Handed Control

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Solution Overview

Problem

Traditional collapsible strollers require two hands to push in a straight line, making it difficult to navigate predictably, especially when using only one hand or carrying additional items, and can spontaneously collapse, posing safety risks.

Innovation Solution

A one-piece bracing bar that removably couples between the two handlebars of a collapsible stroller using hook-and-loop straps, creating a single, solid cross-bar for easy single-handed control and reinforcing structural integrity with a locking mechanism for easy conversion between two-handled and single-handed use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If two handlebars are used in collapsible strollers, then the stroller can be folded compactly for storage, but two hands are required to push the stroller in a straight line

Engineering Contradiction:

Improvestorage compactnessVSAvoidsingle-handed control

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

A detachable bracing bar is introduced as an intermediary component between the two handlebars. This bracing bar creates a rigid triangular structure that provides structural support, enabling single-handed control while preserving the collapsible folding mechanism for compact storage

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If two handlebars are used in collapsible strollers, then the stroller structure remains flexible for folding, but the stroller may spontaneously collapse posing safety risks

Engineering Contradiction:

Improvefolding capabilityVSAvoidstructural stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The bracing bar is designed with detachable connections that allow dynamic adjustment between locked and unlocked states. When locked, it provides rigid structural support preventing collapse; when unlocked, it allows the stroller to fold compactly for storage

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The bracing bar system is segmented into detachable components with locking mechanisms. This segmentation allows the structure to transition between a stable locked configuration for safe operation and a flexible unlocked configuration for folding and storage

Inventive Principle:

Principle #1Segmentation

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 safe and stable single-handed operation of collapsible strollers, preventing spontaneous collapse and improving navigation, while maintaining the stroller's structural integrity for easy storage and travel.

Implementation Method 1

the bracing bar couples to each handlebar using a hook-and-look (also known as Velcro®) strap to connect to each handlebar

Methodology Applied

Scientific EffectHook-and-loop fastening: Velcro

Data Source

PatentUS11352042B2Detachable brace for collapsible stroller

Publication Date: 2022.06.07 AZAD TATARI SARAH G

AI summary

A detachable bracing bar for a collapsible stroller that has a rigid bracing bar, a first end cap coupled to a first end of the bracing bar and a second end cap coupled to a second end of the bracing bar, a first strap coupled to the first end cap, and a second strap removably coupled to the second end cap where the first strap and the second strap are adapted to removably couple to a first handlebar and a second handle bar of a collapsible stroller in a position that enables a user to grasp the rigid bracing bar and push the collapsible stroller with one hand.