Child Safety Seat Tether Retraction With Fixation Feedback

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Solution Overview

Problem

Existing child safety seats face operational complexity and safety hazards due to varying connection methods as children grow, scattered tethers when not in use, and lack of indication for proper TOP TETHER connector fixation.

Innovation Solution

A child safety seat with a telescopically connected tether that automatically retracts, featuring a retractor assembly with a driving member and restore member to trigger a switch for alarm notification, and a unified connection method across different usage levels, ensuring tidy storage and secure installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a tether is extended for use, then the child safety seat can be securely connected, but the tether becomes scattered and messy when not in use

Engineering Contradiction:
Improveconnection securityVSAvoidtether arrangement
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The tether is wound and stored within the retractor assembly housing, nesting the flexible tether inside a fixed structure. When not in use, the tether is completely contained within the retractor bracket, eliminating scattering while maintaining quick accessibility when needed

Inventive Principle:
Principle #7Nested doll (Nesting)

2Device complexity

If manual tether extension and retraction is used, then the structure can be simple, but the operation becomes complex and prone to misoperation

Engineering Contradiction:
Improveretractor structureVSAvoidtether operation
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The retractor assembly automatically performs both extension and retraction functions without user intervention. When the tether is pulled, the driving member automatically triggers the switch and activates the alarm, while the restore member automatically returns the driving member to its initial position, making the system self-operating and eliminating manual retraction steps

Inventive Principle:
Principle #25Self-service

3Device complexity

If no indication mechanism is provided, then the device can be simpler, but it is difficult to detect whether the TOP TETHER connector is properly fixed

Engineering Contradiction:
Improvealarm systemVSAvoidconnector fixation status
Core Design Contradiction:
Device complexityVSDifficulty of detecting and measuring

Solution Approach 1:

The switch provides immediate feedback when the TOP TETHER connector is properly fixed by triggering an alarm notification. The alarm serves as a clear signal to the user that the connection is secure, creating a feedback loop that confirms proper installation without requiring the user to visually inspect or manually verify the connection

Inventive Principle:
Principle #23Feedback

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 simplifies operation, prevents tether scattering, and enhances safety by providing an automatic retraction mechanism and alarm notification, allowing for consistent and secure use across different child weight levels.

Implementation Method 1

an elastic member connected to the retractor bracket and the retractor, and applying a torsion force to the retractor

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

an elastic member connected to the retractor bracket and the retractor, and applying a torsion force to the retractor

Methodology Applied
Scientific EffectTorsion spring: Torsion Spring

Implementation Method 3

a restore member fixed to the base and applying a pressure to the driving member, wherein the tether bypasses and contacts the driving member

Methodology Applied
Scientific EffectElastic recovery: Elastic Recovery

Data Source

PatentUS20240001822A1Child safety seat
Publication Date: 2024.01.04 BAMBINO PREZIOSO SWITZERLAND AG
  • US20240001822A1 patent drawing
  • US20240001822A1 patent drawing
  • US20240001822A1 patent drawing

AI summary

The present disclosure discloses a child safety seat, which includes: a base, a rear portion of which is formed with a top rod protruding upwardly; a seat rotatably fixed on the base; and a tether telescopically connected to the base, wherein, the tether can be automatically retracted when it is extended relative to the base. The child safety seat of the present disclosure has an advantage of convenient connection and is not easy to misuse.