Child Seat Impact Shield With Softer Head Impact Section
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Solution Overview
Problem
Conventional child seat impact shields are inadequate in reducing the risk of injury during frontal accidents, as they do not effectively distribute forces and can increase the stress on a child's head and body, leading to potential injuries.
Innovation Solution
The impact shield features a head impact section that is designed to be softer and recessed, offering less resistance to the child's head during deceleration, and is dimensioned to cover the abdomen and chest to distribute forces over a larger area, with an optional airbag for enhanced protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the impact shield is made rigid to restrain the child effectively, then the restraining function is improved, but the risk of head injury increases due to high impact forces
Solution Approach 1:
The impact shield features a head impact section with different material properties (softer, energy-absorbing material) compared to other sections. This local differentiation allows the head impact area to reduce impact forces while other sections maintain restraining strength, directly resolving the contradiction between effective restraint and head injury prevention.
Solution Approach 2:
The patent changes the material parameter (hardness/energy absorption characteristics) of the head impact section specifically. By using softer, energy-absorbing material in this critical area, the shield transforms the hard impact interaction into a more gradual force distribution, reducing peak forces on the child's head while maintaining overall structural integrity for restraint.
2Force
If the impact shield covers a larger area to distribute forces, then the force distribution is improved, but the device complexity increases
Solution Approach 1:
The impact shield is segmented into distinct functional sections: a head impact section with specific energy-absorbing properties and other sections with different characteristics. This segmentation allows each part to be optimized for its specific function while maintaining overall force distribution across the entire shield structure, achieving good force distribution without excessive complexity.
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 reduces the risk of injury by absorbing and distributing impact forces more effectively, providing improved safety for children during frontal collisions by delaying the head's impact and stabilizing the child's body.
Implementation Method 1
The head impact section (18) is designed to be softer and/or to have at least one recess (19). In this way, the head impact section (18) offers comparatively little resistance to the impacting head and/or interacts with the head only as late as possible
Implementation Method 2
the head impact section (18) is designed to be softer and/or to have at least one recess (19). In this way, the head impact section (18) offers comparatively little resistance to the impacting head
Data Source
AI summary
The invention relates to an impact shield for a child seat for mounting on a motor vehicle seat, the child seat having a main body for receiving a child, the impact shield having a first surface section, namely a head impact section, onto which the head of the child impacts in the event of sudden deceleration, the head impact section having at least one recess and/or being at least partially softer than at least a second surface section of the impact shield.