Infant Stroller Modular Frame with Spring-Loaded Stand Platform
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Solution Overview
Problem
Conventional double strollers have limited seating options and are difficult to maneuver due to their fixed seat configurations and increased length.
Innovation Solution
An infant stroller apparatus with a modular frame design that includes pivotally connected leg frames, a spring-loaded stand platform, and a caster assembly, allowing for detachable seats and improved maneuverability through adjustable wheel assemblies and a brake system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If seats are permanently attached to the stroller frame, then seating stability is improved, but seating configuration flexibility deteriorates
Solution Approach 1:
The stroller is divided into modular components: a frame structure and detachable seats. The seats can be removed and reattached at different locations (front, rear, side-by-side configurations), allowing flexible seating arrangements while maintaining stable attachment when installed. This segmentation enables both stability during use and versatility in configuration.
Solution Approach 2:
The seat attachment system transitions from static permanent attachment to dynamic detachable attachment. Seats can be attached and detached as needed, allowing the stroller to adapt between different seating configurations (one seat, two seats, front, rear, or side-by-side) while providing stable support when seats are installed.
2Quantity of substance
If double stroller length is increased to accommodate two seats, then seating capacity is improved, but maneuverability deteriorates
Solution Approach 1:
The stroller uses a compact frame design with detachable seats that can be positioned in space-efficient arrangements. The modular approach allows two seats to be accommodated in a smaller footprint compared to traditional fixed double strollers, improving maneuverability while maintaining seating capacity.
Solution Approach 2:
The stroller frame is designed as a universal platform that can accommodate one or two seats in multiple configurations. This multi-functionality allows the same compact frame to adapt to different seating needs without requiring a larger fixed structure, thereby maintaining ease of maneuverability regardless of seating capacity.
3Reliability
If stand platform is made rigid for stability, then support stability is improved, but maneuverability over curbs deteriorates
Solution Approach 1:
The stand platform is designed with pivotable connections to the frame, allowing it to dynamically adjust its position. When encountering curbs or uneven terrain, the platform can pivot to accommodate the terrain changes while maintaining stability during normal use. This dynamic design provides both stability and curb-climbing capability.
Solution Approach 2:
The stand platform's angular position parameter can change relative to the frame. By allowing the platform to pivot between different angles, the system maintains a stable horizontal support surface during normal use while enabling the rear wheels to lift over curbs when needed, thus adapting to different operational conditions.
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
The stroller provides flexible seating configurations and enhanced maneuverability, making it easier to navigate and accommodate multiple seats while preventing tipping and ensuring stable support.
Implementation Method 1
a spring connected with the leg frame. The stand platform is connected with a caster assembly disposed rearward relative to the pivot axis. The spring is configured to bias the stand platform in a direction for displacing the caster assembly downward.
Data Source
AI summary
An infant stroller apparatus includes a stroller frame having a leg frame, a stand platform pivotally connected with the leg frame about a pivot axis, and a spring connected with the leg frame. The stand platform is connected with a caster assembly disposed rearward relative to the pivot axis. The spring is configured to bias the stand platform in a direction for displacing the caster assembly downward. In some embodiment, the infant stroller apparatus can include a brake assembly operable to lift the caster assembly of the stand platform in a braking state.