T-Shaped Stroller Frame With Offset Carrier Mounts
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Solution Overview
Problem
Current side-by-side duo strollers cannot accommodate two full-sized infant car seats simultaneously, compromising safety, comfort, and convenience for parents of twins, and the central tube design interferes with hand positioning and storage space.
Innovation Solution
A T-shaped frame structure for baby carriages with offset engaging mechanisms allows for the attachment of two infant carriers, enabling flexible handling and maximizing storage space by positioning the tray outside the central tube, and includes a mechanism that rotates between active and inactive positions to prevent finger injuries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional central tube design is used in duo strollers, then the structural simplicity is maintained, but the handle grip and parent tray are divided into segments causing loss of hand positioning flexibility and storage space
Solution Approach 1:
The patent removes the central tube that extends through the handle tube from the conventional design. This extraction eliminates the division of the handle grip and parent tray into segments, allowing the user to freely grip the entire handling member and access the full parent tray without obstruction, thereby restoring hand positioning flexibility and storage space while maintaining structural simplicity through the alternative T-shaped frame configuration
2Device complexity
If a conventional central tube design is used in duo strollers, then the structural simplicity is maintained, but the parent tray loses valuable storage space due to protrusion of central tube and mounting structure
Solution Approach 1:
The patent extracts the central tube that protrudes through the parent tray from the conventional design. By removing this obstructing element, the parent tray can extend fully across the stroller frame without interruption, maximizing the available storage space while the T-shaped frame structure maintains overall structural simplicity through its optimized configuration
3Reliability
If two full-sized infant car seats are attached to a conventional duo stroller, then the safety and comfort for twins is improved, but the stroller width becomes excessively large making it difficult to handle
Solution Approach 1:
The patent employs offset engaging mechanisms that are positioned at different heights relative to the frame rather than symmetrically at the same level. This vertical dimensionality change allows two full-sized infant car seats to be attached securely (maintaining safety and comfort) while the offset configuration optimizes the horizontal width, preventing excessive stroller width and improving handling ease
4Shape
If the engaging mechanisms are positioned symmetrically on the frame, then the aesthetic balance is maintained, but the two infant carriers cannot nest closer together without making the frame overly wide
Solution Approach 1:
The patent deliberately introduces asymmetry in the positioning of the engaging mechanisms by offsetting them in the height direction relative to the frame. This asymmetric configuration allows the two infant carriers to nest closer together horizontally, reducing the overall frame width and improving maneuverability, while the offset height positioning maintains visual balance and structural stability
Data Source
AI summary
A frame for a baby carriage includes two side supporting members, a handling member, a traverse connecting member and a central supporting member. The handling member has opposite ends connected to the two side supporting members, respectively. The traverse connecting member has opposite ends connected to the two side supporting members, respectively and spaced apart from the handling member. The central supporting member is arranged between the two side supporting members so as to form two side-by-side seat areas and terminating at the traverse connecting member so as to form a T-shaped structure.