Rotating Child Seat Base With Locking and Tilt Support

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Solution Overview

Problem

Existing child restraint systems with fixedly mountable bases on vehicle seats lack flexibility in angular positioning and stability, particularly in supporting child seats, and do not provide efficient mechanisms for secure attachment and rotation.

Innovation Solution

A base with a primary support portion that allows for positive locking and 360-degree rotation of a child seat, featuring a circumferential recess for engagement and a secondary support portion to limit tilting, combined with a locking mechanism and a tensioning mechanism for secure attachment to the vehicle seat.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a fixedly mountable base is used on a vehicle seat, then the child seat gains enhanced support and stability, but the system lacks flexibility in angular positioning and rotation

Engineering Contradiction:
ImprovestabilityVSAvoidangular positioning flexibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The base incorporates a rotating mechanism with a rotation axis that enables the child seat to rotate dynamically between different angular positions (e.g., facing forward, backward, or sideways) while maintaining stable support through the fixed mounting structure on the vehicle seat

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a detachable connection mechanism is used between the child seat and base, then the system gains ease of attachment and detachment, but may compromise the reliability of the connection

Engineering Contradiction:
Improveease of attachmentVSAvoidconnection reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection mechanism includes pre-positioned locking elements and guiding features that ensure automatic proper engagement when the child seat is attached to the base, preventing improper installation while maintaining ease of operation

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The system incorporates indication mechanisms (such as visual or tactile feedback) that provide immediate confirmation when the child seat is properly attached to the base, ensuring reliable connection while maintaining user-friendly operation

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4275950B1Child restraint system
Publication Date: 2025.11.26 THULE SWEDEN AB
  • EP4275950B1 patent drawingFigure 1~2
  • EP4275950B1 patent drawingFigure 3~4
  • EP4275950B1 patent drawingFigure 5~6

AI summary

The present disclosure relates to child restraint systems and components of child restraint systems, for example child seats like a toddler seat and an infant seat, support bases of child seats, in particular support bases that are fixable on a vehicle seat and which bases may be an integral part of a child seat or which may be configured such that a child seat is releasably couplable to them.