Child Safety Seat Inflatable Side Elements Torque Dissipation
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Solution Overview
Problem
Existing child safety seats lack sufficient stability to effectively dissipate peak forces during vehicle impacts, which poses a risk to the child's safety.
Innovation Solution
A child safety seat design featuring inflatable side elements connected to the backrest and seat elements via tensile elements, which are pre-tensioned to counteract torque and dissipate forces from the backrest into the seat, enhancing stability and force distribution during impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforcing straps are applied to the child safety seat, then the structural strength is improved, but the force dissipation from the backrest part into the seat part remains insufficient
Solution Approach 1:
The side elements are divided into multiple inflatable air chambers (first, second, third, and fourth air chambers) arranged in sequence. This segmentation allows different regions to independently absorb and dissipate forces, improving overall force dissipation capability while maintaining structural strength through the distributed chamber configuration.
Solution Approach 2:
The patent employs inflatable air chambers within the side elements to provide structural support and energy absorption. The air chambers expand to create a pneumatic cushioning system that dissipates impact forces, enhancing the reliability of force dissipation from the backrest to the seat part while maintaining structural integrity.
2Stability of the object's composition
If inflatable air chambers are used in the side elements, then the seat shell achieves high rigidity and form stability, but the device complexity increases
Solution Approach 1:
The inflatable air chambers are integrated directly into the side elements, merging the structural support function and the stability function into a single component. This eliminates the need for separate rigid frames or additional stabilizing structures, thereby reducing device complexity while maintaining high rigidity and form stability when inflated.
Solution Approach 2:
The side elements transition from a flexible state during normal use to a rigid state when inflated, providing dynamic adaptability. The air chambers can be inflated or deflated as needed, allowing the structure to change its mechanical properties dynamically without requiring permanently complex rigid structures.
3Object-affected harmful factors
If the child safety seat is designed for opposite direction mounting, then the head protection is improved, but the stability during impact is reduced
Solution Approach 1:
The side elements are pre-configured with inflatable air chambers that can be inflated before or during impact events. This preliminary preparation ensures that the stabilizing structure is ready to counteract torque and maintain stability during impact, while still allowing opposite direction mounting for improved head protection.
Solution Approach 2:
The side elements combine flexible outer material with internal inflatable air chamber structures, creating a composite system that provides both the flexibility needed for opposite direction mounting and the rigidity required for impact stability. The multi-material construction allows simultaneous achievement of head protection and impact stability.
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
The design significantly improves the stability of the child safety seat by reliably counteracting torque and dissipating forces, reducing the risk of injury from peak forces during vehicle impacts.
Implementation Method 1
a first inflatable air chamber and a second inflatable air chamber, wherein the first side element is connected to a first longitudinal edge of the backrest element and to a first longitudinal edge of the seat element
Implementation Method 2
a first tensile element is respectively connected to the first longitudinal edge of the backrest element and to the first longitudinal edge of the seat element, and a second tensile element is respectively connected to the second longitudinal edge of the backrest element and to the second longitudinal edge of the seat element, wherein the first tensile element and the second tensile element are arranged in a pretensioned state
Data Source
AI summary
The invention relates to a child safety seat for fastening to a vehicle seat, said child safety seat having a seat element, a backrest element, a first side element with a first inflatable air chamber, and a second side element with a second inflatable air chamber. The first side element is connected to a first longitudinal edge of the backrest element and a first longitudinal edge of the seat element, and the second side element is connected to a second longitudinal edge of the backrest element and a second longitudinal edge of the seat element. A first tensile element is connected to the first longitudinal edge of the backrest element and the first longitudinal edge of the seat element, and a second tensile element is connected to the second longitudinal edge of the backrest element and the second longitudinal edge of the seat element.