Child Safety Seat Restraint Layout for Easier Use and Even Pressure
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Solution Overview
Problem
Existing child automobile safety seats have complex restraint systems that are difficult for single parents to use and may cause discomfort due to small stressed areas, and the front body protectors are limited in adjustability and coverage, leading to safety concerns and discomfort.
Innovation Solution
A child automobile safety seat with a rotatable protective piece and adjustable restraint pieces that can be easily opened and closed, featuring a protective surface that conforms to the child's body and includes an airbag for enhanced protection, allowing for even pressure distribution and improved safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a five-point seat belt with multiple soft connecting belts and hard buckles is used, then the restraint function is provided, but the installation mode becomes relatively complicated and the connecting belts become difficult to manage when not in use
Solution Approach 1:
The restraint system is divided into independent restraint pieces (first restraint piece, second restraint piece, third restraint piece) that can be separately adjusted and positioned. Each restraint piece can be independently fastened at different locations, allowing for modular assembly and easier management compared to a single complex five-point belt system.
2Reliability
If a five-point seat belt is used, then the restraint function is provided, but the stressed area is relatively small causing discomfort and knocking pain to children
Solution Approach 1:
Different restraint pieces are designed to contact different body parts of the child (shoulder, waist, crotch areas), distributing the restraint force across multiple localized regions rather than concentrating stress on a small area. This reduces discomfort and knocking pain while maintaining effective restraint.
3Area of stationary object
If a front body protector with a relatively large retaining block is used, then a large area of protection is provided for the front portion of the child body, but the volume is relatively large limiting adjustable range
Solution Approach 1:
The front body protector is divided into multiple adjustable restraint pieces rather than a single large rigid block. Each restraint piece can be independently positioned and adjusted to accommodate children of different body types and sizes, providing both adequate protection and versatility.
4Reliability
If a five-point seat belt is used, then restraint is provided, but when not in use the connecting belts are randomly stacked inside the seat and wound together making them neither attractive nor convenient to reuse
Solution Approach 1:
The restraint system is divided into separate restraint pieces that can be independently positioned and stored. When not in use, each piece can be neatly arranged in its designated location rather than being tangled together, improving both appearance and ease of reuse.
Data Source
AI summary
A child automobile safety seat includes a seat body having a sitting space, and a restraint system. The seat body includes a seat and a backrest. The restraint system includes restraint pieces and a protective piece. Two sets of restraint pieces are respectively arranged on the left side and the right side of the backrest. The protective piece is movably arranged at the front part of the seat, and is provided with a protective surface which faces the sitting space. When the restraint system is in a restraint state, the two sets of restraint pieces are respectively matched with and connected to the protective piece. When the restraint system is in an open state, the two sets of restraint pieces are respectively separated from the protective piece.