Foldable Baby Trailer Frame Structure with Detachable Bumper
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Solution Overview
Problem
Existing foldable baby trailers occupy excessive storage space when collapsed, lack protection for the seat from bumps during use, and pose safety hazards due to protruding parts during exhibition.
Innovation Solution
A foldable baby trailer frame structure with a bottom frame, pivotally supported wheels, arched top frame bars, a transverse top bar, and a trailer bar that can be selectively locked, along with a detachable bumper to protect against bumps, allowing for compact storage and safe handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the vertical side frames are folded down and closely attached to the bottom frame, then the folding collapsible baby trailer can be collapsed, but the collapsed structure still occupies much storage space and is bulky
Solution Approach 1:
The frame is divided into multiple detachable components including vertical side frames, bottom frame, arched top frame bars, and a trailer bar. These segments can be separated and reconfigured, allowing the trailer to be collapsed into a compact configuration that reduces storage space occupation while maintaining structural integrity when assembled.
Solution Approach 2:
The arched top frame bars are designed to pivot and move in a different dimensional plane during collapse. By rotating these bars into a horizontal position parallel to the bottom frame, the vertical height is reduced significantly, transforming the collapse from a simple planar folding into a multi-dimensional reconfiguration that minimizes volume.
2Ease of operation
If the flexible seat curves downwards under baby's weight, then the seat conforms to the baby's body, but the seat lacks protection from bumps during moving
Solution Approach 1:
A bumper is attached to the front of the trailer frame to provide preliminary protection against bumps before they can affect the flexible seat. This preemptive protective measure prevents external impacts from reaching the seat, thereby protecting the baby while maintaining the seat's natural curvature and comfort.
3Volume of moving object
If the folding collapsible baby trailer is collapsed and packed, then storage space is reduced, but protruding parts may hurt people passing by accidentally
Solution Approach 1:
The trailer bar is designed as a separate, detachable segment that can be removed from the main frame structure during collapse. This segmentation allows the bar to be separated from protruding components, eliminating safety hazards while maintaining compact storage configuration.
Solution Approach 2:
The trailer bar is extracted from the main frame assembly during the collapse process. By removing this potentially protruding component, the design eliminates safety hazards to pedestrians while still providing the necessary structural function when the trailer is in use.
Data Source
AI summary
A frame structure for foldable baby trailer is disclosed to include a bottom frame formed of two side bars and a front bar and a rear bar, two vertical side frames each having two bottom frame bars respectively pivoted to the side bars and an arched top frame bar pivoted to the bottom frame bars, a transverse top bar detachably connected to the arched top frame bars of the two vertical side frames, a trailer bar pivoted to the front side of said side bar of the bottom frame and selectively locked between an extended position and a received position, and a bumper detachably connected between the side bars of the bottom frame.