Child Safety Seat Tether Engagement Structure for Impact Stability
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Solution Overview
Problem
Existing child safety seats experience significant relative movement between the seat and base during vehicle impacts, leading to discomfort and safety risks due to the lack of effective stabilization of the top tether system.
Innovation Solution
The child safety seat incorporates an engaging member with a channeling mechanism that supports the top tether, including a fixing rod and connecting arms, which are integrated with the seat to prevent excessive movement and secure the tether, utilizing a combination of clamping sockets and a torsion spring mechanism for stability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the top tether is connected only to the base or seat without an engaging member, then the structure is simple, but the relative movement between seat and base during impact is large causing safety risks
Solution Approach 1:
The patent introduces an engaging member as an intermediary component between the top tether and the seat. This engaging member includes a rod with connecting arms that extend through the seat shell, providing a dedicated interface for the top tether to attach to the seat. This intermediary structure enables effective force transmission during impact while maintaining reasonable structural complexity.
Solution Approach 2:
The engaging member extends in multiple dimensions - the rod provides longitudinal support while connecting arms extend laterally through the seat shell. This multi-dimensional configuration allows the top tether to be anchored at multiple points on the seat, creating a more stable attachment system that reduces relative movement during impact.
2Reliability
If the engaging member is rigidly fixed to the seat, then the top tether is well supported, but the displacement of the engaging member is limited reducing adaptability
Solution Approach 1:
The engaging member is designed with dynamic characteristics - it is firmly anchored to the seat structure through the connecting arms that extend through the seat shell, providing stability. However, the rod portion can displace relative to the seat within certain limits, allowing the system to adapt to impact forces while maintaining overall stability. This dynamic design enables the engaging member to absorb and distribute impact forces effectively.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design effectively reduces horizontal displacement of the child's head, enhances safety, and improves comfort by ensuring the seat and base are simultaneously restrained, preventing forward tilting during impacts.
Implementation Method 1
a torsion spring mechanism for stability and ease of use
Data Source
AI summary
The present application relates to a child safety seat and a seat thereof. The seat of the child safety seat is configured to be mounted on a base of the child safety seat, an upper part of the seat is provided with an engaging member, and the engaging member is configured for a top tether connected to the base to extend through, and for supporting the top tether.