Booster Seat Armrests Nesting in Shell Cavity

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Solution Overview

Problem

Conventional child booster seats with additional features like armrests and cup holders increase their volume, making them less convenient for storage and shipment.

Innovation Solution

The design incorporates armrests and cup holders that can be stored within a compact storage cavity of the seat shell, allowing the booster seat to occupy a smaller volume and be packed in smaller boxes, enabling efficient storage and shipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If armrests and cup holders are added to the booster seat, then the functionality and convenience for children are improved, but the volume of the booster seat increases making storage and shipment less convenient

Engineering Contradiction:
ImprovefunctionalityVSAvoidvolume
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The armrests are designed to nest within the booster seat structure when not in use. The armrests can be positioned inside the seat shell, utilizing the internal cavity space, thereby reducing the external volume of the booster seat for storage and shipment while maintaining full functionality when deployed

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If additional features like armrests are included, then the ease of operation for children is improved, but the device complexity and storage requirements increase

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The booster seat is divided into modular components including the seat shell, armrests, and cup holders that can be independently positioned and stored. The armrests can be detached or repositioned within the seat structure, allowing for simplified storage configuration while maintaining operational simplicity for children during use

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2474441B1Booster seat
Publication Date: 2017.11.01 WONDERLAND NURSERYGOODS CO LTD
  • EP2474441B1 patent drawingFigure 1A
  • EP2474441B1 patent drawingFigure 1B
  • EP2474441B1 patent drawingFigure 1C

AI summary

A child booster seat includes a seat shell, and armrests that can be conveniently placed in an outer envelop of the seat shell. The armrests can be placed in a storage cavity of the seat shell, and deployed outside the storage cavity for use. When the armrests are received in the seat shell, the outer envelop of the booster seat can substantially match with the outer contour shape of the seat shell. The booster seat can thereby occupy a smaller volume.