Child Safety Seat Side Structure for Compact Impact Energy Absorption
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Solution Overview
Problem
Child safety seats often fail to provide adequate protection during side impacts, as the existing fastening mechanisms are insufficient to decelerate the seat quickly enough, leading to potential injury to the child due to strong deceleration forces.
Innovation Solution
A child safety seat with energy-absorbing and/or energy-transmitting elements that can be manually or automatically transferred between rest and functioning positions to enhance side impact protection, designed to absorb and decelerate lateral movement by converting kinetic energy into other forms, such as heat, and transmitting forces to supporting elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the child safety seat is fastened using conventional fastening mechanisms, then the seat can be securely attached to the vehicle seat, but the seat cannot sufficiently decelerate during side impact due to insufficient lateral distance to the vehicle interior
Solution Approach 1:
The patent incorporates energy-absorbing elements (such as deformable structures or cushioning materials) within the child safety seat itself, positioned to absorb lateral impact energy before it reaches the child. This beforehand cushioning allows the seat to decelerate during side impact without requiring additional lateral space in the vehicle, as the absorption occurs internally within the seat structure.
Solution Approach 2:
The patent transitions from relying on lateral distance (one-dimensional space constraint) to utilizing vertical or depth-dimensional space within the seat structure. By placing energy-absorbing elements in the vertical dimension or within the seat's depth, the design achieves side impact protection without increasing the lateral footprint of the seat, thus resolving the contradiction between protection reliability and lateral space requirements.
2Reliability
If energy-absorbing elements are added to the child safety seat, then side impact protection is improved, but the device complexity and space requirements increase
Solution Approach 1:
The patent employs flexible, deformable structures (such as flexible side walls or thin film energy-absorbing layers) that can collapse or deform during side impact to absorb energy. These flexible elements are integrated into the seat's existing shell structure, adding protection functionality without significantly increasing overall structural complexity or requiring separate rigid components.
Solution Approach 2:
The patent utilizes composite materials that combine energy-absorbing properties with structural integrity requirements. By integrating multiple materials with different properties (e.g., rigid foam cores with flexible outer shells, or layered composite structures), the design achieves effective side impact energy absorption while maintaining a relatively simple monolithic structure that does not require complex assembly of multiple separate components.
3Reliability
If the child safety seat is designed with extended lateral dimensions for better side impact protection, then energy absorption capability improves, but the seat cannot fit in standard vehicle seats and portability is reduced
Solution Approach 1:
The patent integrates energy-absorbing cushioning elements directly into the lateral walls or side structures of the child safety seat, positioned beforehand to absorb impact energy. This approach provides effective energy absorption within the existing lateral dimensions of the seat, eliminating the need to increase the seat's external lateral footprint while maintaining compatibility with standard vehicle seats and portability requirements.
Solution Approach 2:
The patent employs nested energy-absorbing structures where absorbent materials or deformable elements are embedded within the seat's existing shell or frame structure. This nesting approach allows energy absorption functionality to be contained within the original lateral boundaries of the seat, avoiding any increase in external dimensions while still providing effective side impact protection through internal energy dissipation mechanisms.
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 solution effectively reduces the risk of injury by decelerating the child safety seat's lateral movement smoothly, minimizing the force exerted on the child during side impacts, while maintaining a compact design to avoid space constraints and ensure compatibility with various transportation modes.
Implementation Method 1
designed to absorb and decelerate lateral movement by converting kinetic energy into other forms, such as heat
Implementation Method 2
transmitting forces to supporting elements
Data Source
AI summary
Child safety seats are used for the safe transport of children in vehicles. The child safety seats known from prior art often offer only insufficient protection in the case of a side impact. It is therefore an object of the present invention to provide a child safety seat that improves the protective effect of the child safety seat in the case of a side impact. This object is solved by a child safety seat with side impact protection according to the invention. Such a child safety seat comprises at least one element absorbing and/or transmitting energy which is arranged and designed to be transferred from a rest position to a functioning position to absorb a laterally impacting energy in the functioning position.