Pivoting Child Restraint Seat for Easier Vehicle Loading
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Solution Overview
Problem
Existing child safety devices lack the ability to easily and safely facilitate the loading and unloading of children in vehicles, particularly for caregivers, due to fixed seating arrangements that do not accommodate varying child sizes and vehicle configurations.
Innovation Solution
A child restraint system with a seat base and a juvenile seat that includes a multi-axis pivoting mechanism, allowing the juvenile seat to pivot relative to the seat base between forward-facing, rearward-facing, and lateral positions, enabling caregivers to easily access the child by positioning the seat closer to the vehicle door, utilizing a seat-pivot unit with pivot rods and a rod actuator to select from multiple pivot axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the juvenile seat is fixed in a standard seating position on the seat base, then the installation is simple and stable, but the caregiver cannot easily access the child for loading and unloading
Solution Approach 1:
The juvenile seat is transformed from a fixed static position to a dynamic multi-position configuration. The pivot mechanism allows the seat to rotate between forward-facing, rearward-facing, and lateral positions, enabling the caregiver to easily access the child by positioning the seat toward the vehicle door while maintaining installation stability through controlled pivoting.
Solution Approach 2:
The seat positioning system is divided into discrete pivot positions (forward-facing, rearward-facing, lateral) that can be selectively engaged. This segmentation allows the seat to offer multiple functional positions without requiring a continuous complex adjustment mechanism, simplifying the overall system while providing ease of access.
2Ease of operation
If the juvenile seat is positioned toward the vehicle door for easy access, then the caregiver can easily load and unload the child, but the seat becomes unstable and difficult to secure
Solution Approach 1:
The pivot mechanism provides controlled dynamic positioning that allows the seat to be securely installed in lateral positions toward the vehicle door while maintaining stability. The mechanism enables intentional movement to access positions while preventing unintended movement, thus maintaining reliability during operation.
Solution Approach 2:
The seat is pre-configured with multiple pivot positions that are designed to be stable and secure. The caregiver can select the appropriate pivot position (such as lateral positioning toward the door) before loading or unloading the child, ensuring that the seat is properly positioned and stable before the operation begins.
3Adaptability or versatility
If the seat base is designed with multi-axis pivoting capability, then the seat can accommodate different child sizes and vehicle configurations, but the device complexity and manufacturing cost increase
Solution Approach 1:
The pivot mechanism provides multi-functionality by enabling the juvenile seat to accommodate different child sizes, orientations (forward-facing, rearward-facing), and vehicle configurations (different door positions, seat types). This single mechanism serves multiple adaptive functions without requiring separate systems for each configuration.
Solution Approach 2:
The dynamic pivoting capability allows the seat to adapt to various configurations through controlled rotation about pivot axes. This dynamic adjustment provides versatility for different children and vehicle setups while using a relatively simple mechanical pivot system rather than complex adjustable mechanisms.
Data Source
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AI summary
A child restraint includes a seat base configured to be secured to a vehicle seat and a juvenile seat configured to mount to the seat base and defining a child-receiving space adapted to hold and secure a child for transportation in a vehicle. The juvenile seat is pivotable relative to the seat base between various arrangements.