Modular Child Safety Seat With Nested Booster and Compact Holders
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Solution Overview
Problem
Current child booster seats are bulky and difficult for children to carry, with object holders extending beyond the seat width, making them inconvenient for multiple caregivers and requiring multiple purchases.
Innovation Solution
A child safety seat design featuring a main seat, harness, and belt-positioning seat that is configurable in multiple positions, including a forward-facing high-back configuration, backless booster, and belt-positioning booster, with a removable belt-positioning seat and rotatable object holders to reduce size and enhance usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If object holders are added to the booster seat, then convenience for children is improved, but the overall width of the seat increases beyond the seating surface width
Solution Approach 1:
The object holder is nested within the lateral boundaries of the seating surface, with its base attached to the seat bottom and positioned such that the holder does not extend beyond the outer perimeter of the seating surface when viewed from above, thus maintaining compact dimensions while providing functional utility
2Adaptability or versatility
If the booster seat is made large and bulky to accommodate growing children, then adaptability to different age groups is improved, but ease of transport by children deteriorates
Solution Approach 1:
The booster seat is segmented into multiple functional components including the seat bottom, backrest, harness system, and object holder, allowing the seat to maintain a compact size while providing adjustable features that adapt to different child sizes and ages through configuration changes rather than size increases
3Ease of operation
If the booster seat is designed to be compact for easy transport, then ease of operation is improved, but the number of features such as object holders must be reduced
Solution Approach 1:
The object holder is merged with the seat bottom structure, with the holder's base integrated into the seat bottom and positioned within the lateral boundaries of the seating surface, thereby providing additional functionality without increasing the overall footprint or compromising transportability
Data Source
AI summary
A child safety seat for a vehicle includes a main seat, a harness, and a belt-positioning seat. The main seat includes a seatback, a seat bottom attached to the seatback, and a pair of belt guides. The seat bottom has a first seating surface defining a receiving space between the pair of belt guides. The harness includes first and second straps, and a crotch buckle. The belt-positioning seat includes a seat body and at least one belt-positioning guide. The seat body has a second seating surface, and a bottom surface. The at least one belt-positioning guide protrudes upward from the second seating surface. The seat body is removably coupled to the seat bottom in the receiving space such that, when the seat body is positioned in the receiving space, the crotch buckle is positioned above the second seating surface to removably fasten to the first and second shoulder straps.