Child Seat Folding Mechanism with Automatic Front Guard Unlocking
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Solution Overview
Problem
Existing child strollers require multiple operating steps to fold the front guard and backrest, complicating the folding process and making it inconvenient for storage.
Innovation Solution
A child seat design featuring a front guard and backrest frame that are pivotally connected with a folding mechanism, where the backrest frame's rotation from a deployed to a collapsed position automatically unlocks the front guard, allowing both to be folded in a single step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the front guard and backrest are separate elements requiring multiple operating steps for folding, then the structural integrity and functionality are maintained, but the ease of operation deteriorates due to complicated folding process
Solution Approach 1:
The patent combines the front guard and backrest into an integrated assembly where the front guard is pivotally connected to the backrest. This merging allows both components to be folded simultaneously through a single operating motion, eliminating the need for separate folding steps while maintaining structural integrity through the pivotal connection mechanism
2Loss of time
If multiple operating steps are required to fold the front guard and backrest, then the locking reliability is maintained, but the loss of time increases due to multiple unlocking and folding operations
Solution Approach 1:
The patent incorporates a latch mechanism that pre-positions the folding components in locked states during deployment. When folding is initiated, the integrated design allows the latch to automatically disengage both the front guard and backrest in sequence through a single motion, eliminating the need for multiple manual unlocking operations while maintaining secure locking during use
3Productivity
If the front guard and backrest are folded separately, then the manufacturing simplicity is maintained, but the productivity deteriorates due to increased assembly and disassembly time
Solution Approach 1:
The patent segments the folding mechanism into modular components: a pivotal connection between front guard and backrest, and a latch mechanism with linking parts. This segmentation allows for standardized mass production of individual components while enabling rapid assembly and disassembly during use, thereby improving productivity without significantly complicating the manufacturing process
Data Source
AI summary
A child seat includes a front guard and a backrest frame respectively connected pivotally with the seat portion about a first and a second pivot axis, and a folding mechanism including a latch pivotally connected with the seat portion about a third pivot axis for locking and unlocking the front guard with respect to the seat portion, and a linking part coupled to the latch and pivotally connected with the backrest frame about a fourth pivot axis. A rotation of the backrest frame from a deployed position toward a collapsed position causes a displacement of the linking part that urges the latch to unlock the front guard. The first, third, second and fourth pivot axes are arranged in that order along a direction from a front to a rear of the seat portion when the backrest frame is in the collapsed position and the front guard in a folded position.