Infant Swing Seat Recline Control and Nesting Seat Structure
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Solution Overview
Problem
Existing infant seats are bulky for shipping and require two-handed operation to adjust the recline angle, making it difficult to change the angle without tilting the seat backwards, which can be unsafe for the infant.
Innovation Solution
The infant seat is designed with two mating segments that reduce shipping size and include a recline mechanism with pivot fixtures above the seat's junction, allowing for easy angle adjustment with both hands, and a dial system to lock the seat into position, ensuring stability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the seat is constructed as a complete basket shape, then the structural integrity is maintained, but the shipping size becomes bulky
Solution Approach 1:
The seat is divided into two separate segments: a base segment and a junction segment. The base segment contains the seat bottom, seat back, and side walls forming a U-shaped configuration, while the junction segment is a separate piece that connects to complete the basket shape. This segmentation allows the seat to be disassembled for compact shipping while maintaining structural integrity when assembled.
Solution Approach 2:
The junction segment is designed to nest within the base segment during shipping. The U-shaped base segment provides a cavity that accommodates the junction segment, allowing both parts to be stored in a compact configuration that significantly reduces shipping volume while enabling easy assembly by simply removing and attaching the junction segment.
2Adaptability or versatility
If the recline mechanism uses a support wire with slotted stops, then the seat can be held in multiple positions, but the mechanism is not visible from the front requiring two-handed operation
Solution Approach 1:
The recline mechanism is designed with asymmetric visibility, where the control elements are positioned on the front-facing portions of the seat rather than hidden at the rear junction. This allows the caregiver to see and operate the recline mechanism from the front of the seat, eliminating the need to reach around or stand behind the seat for adjustment.
Solution Approach 2:
The patent introduces a visual indicator or marker system that serves as an intermediary between the internal support wire mechanism and the external user. This indicator provides visual feedback about the current recline position and the available positions, enabling the caregiver to operate the mechanism with one hand while maintaining visibility of the seat's state.
3Device complexity
If the pivot point is at the junction of seat bottom and seat back, then the recline mechanism is compact, but the seat tends to tilt over backwards during angle changes
Solution Approach 1:
The patent positions the pivot point above the junction of the seat bottom and seat back, effectively creating a counterbalancing moment arm. This higher pivot location acts as a counterweight mechanism that prevents the seat from tilting backwards excessively during recline adjustments, as the pivot point's elevated position provides a stabilizing effect that counteracts the backward tipping force.
Data Source
AI summary
The apparatus is an infant seat that has reduced depth for shipping and recline controls that permit control of the seat during the reclining adjustment. The seat is constructed so that the deepest part of the seat fits into the rest of the seat for packaging, but locks into its proper location for use. The preferred embodiment of the recline control uses a dial on a seat pivot fixture. The dial is pushed in to release the seat for reclining, but the dial is interconnected with the seat so that the dial maintains full control of the seat movement. An alternative recline control captures and releases a support wire at the backside of the seat.