Child Safety Seat Headrest With Synchronized Shoulder Belt Height

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Solution Overview

Problem

Existing child safety seats fail to adjust the height of the shoulder belt in sync with the headrest, leading to poor fit for taller children and inconvenient operation.

Innovation Solution

A child safety seat design featuring a headrest with a shoulder belt hole and adjustable connectors, such as Hook & Loop fasteners or adjustment belts, allowing simultaneous adjustment of the headrest and shoulder belt height.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing child safety seats provide headrest height adjustment, then children can grow into the seat, but the adjustment operation is inconvenient and not flexible enough

Engineering Contradiction:
Improveheadrest height adaptabilityVSAvoidadjustment operation convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent merges the adjustment operations for headrest and shoulder belt into a single action. By adjusting one component, both the headrest and shoulder belt heights are modified simultaneously, significantly improving operational convenience and flexibility.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4215413B1Child safety seat
Publication Date: 2026.02.25 BAMBINO PREZIOSO SWITZERLAND AG
  • EP4215413B1 patent drawingFigure 1
  • EP4215413B1 patent drawingFigure 2
  • EP4215413B1 patent drawingFigure 3

AI summary

The application discloses a child safety seat, which includes: a backrest; a headrest formed with a shoulder belt hole; and a shoulder belt extending through the shoulder belt holes, wherein a back surface of the headrest has a first connector and a front surface of the backrest has a second connector, and the first connector is attached to the second connector in a height adjustable manner. The child safety seat provided by the present application may synchronously adjust the height of the shoulder belt while adjusting the height of the headrest.