Convertible Harness Booster Seat With Sliding Backrest Separation

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Solution Overview

Problem

Existing child car seats do not easily transition between configurations, such as a backless booster and a backrest booster, and require disassembly of the harness system to change between these modes, which is inconvenient for users.

Innovation Solution

A harness booster car seat design that allows separation into a backless booster and a separate backrest booster, with a sliding connection mechanism through a single opening, enabling transition to a backless non-harness system in a single motion without disassembling the harness system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the car seat is designed as a single integrated unit, then structural stability is improved, but the ability to transition between configurations becomes difficult and requires disassembly

Engineering Contradiction:

Improvestructural stabilityVSAvoidease of configuration transition

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The car seat is divided into distinct modular components including a backless booster portion, a backrest portion, and a harness system that can be independently positioned. These segments connect through a sliding mechanism with opening and closing actions, allowing the seat to transition between integrated and separated configurations without permanent disassembly, thus maintaining structural stability while enabling easy reconfiguration.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the harness system is permanently attached to the backrest, then harness stability is improved, but transitioning to a backless configuration requires disassembly of the harness system

Engineering Contradiction:

Improveharness stabilityVSAvoidcomplexity of configuration change

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The harness system is designed with dynamic attachment capabilities, allowing it to be securely fastened to the backrest when needed for stability during use, yet easily released and repositioned when transitioning to a backless configuration. The sliding connection mechanism enables the harness to move between attached and detached states without requiring complex disassembly procedures, maintaining both harness stability and configuration flexibility.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If multiple car seats are purchased to accommodate different age groups, then adaptability to different needs is improved, but the quantity of equipment and cost increases

Engineering Contradiction:

Improveadaptability to different age groupsVSAvoidquantity of car seats required

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The car seat is designed as a universal multi-functional unit that can serve multiple purposes across different child development stages. By incorporating a sliding connection mechanism that allows the backrest and harness system to be easily attached or detached, a single car seat can function as both a backless booster for younger children and a backrest booster for older children, eliminating the need to purchase multiple separate car seats and reducing overall equipment quantity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10112508B2Harness booster car seat convertible to multiple separately usable configurations

Publication Date: 2018.10.30 EVENFLO CO INC

AI summary

A harness booster car seat that is separable into a separately usable backless booster and a backrest booster that may or may not include a harness thereon.