Removable Stroller Seat Attachment System

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Solution Overview

Problem

Parents with multiple young children face difficulties in transporting them efficiently due to the limitations of permanently fixed double seat strollers, which are cumbersome and pose safety hazards when not in use, and existing adjustable stroller solutions are either permanently affixed or lose detachable covers.

Innovation Solution

A removable seat attachment system for strollers that converts a single stroller into a double stroller by attaching a second seat, featuring connector portions, seat support elements, and a wheel support frame, allowing for easy conversion between single and double configurations while maintaining safety and convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a permanently fixed double seat stroller is used, then two children can be transported simultaneously, but the stroller becomes substantially larger and more difficult to maneuver through doorways and aisles

Engineering Contradiction:

Improvecapacity to transport multiple childrenVSAvoidmaneuverability through doorways and aisles

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The stroller system is divided into separate modular components: a base single seat stroller and a detachable second seat attachment. This segmentation allows the stroller to be configured as either a single seat or double seat version, enabling easy maneuverability when only one child is present while providing the option to transport two children simultaneously when needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The second seat attachment incorporates a dynamic folding mechanism that allows it to be collapsed into a compact configuration. When not in use, the attachment can be folded down against the stroller frame, reducing its profile and eliminating the space occupation problem while maintaining the option to deploy it when needed.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If a second seat attachment is permanently affixed to the stroller frame, then the attachment mechanism occupies unnecessary space when the second seat is not attached, but creating a safety hazard for children not in the stroller

Engineering Contradiction:

Improveconvertibility between single and double seat configurationsVSAvoidsafety hazard from exposed attachment mechanism

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The attachment mechanism features a dynamic folding design where the second seat attachment can be collapsed into a compact, flush configuration against the stroller frame. This eliminates protruding parts that could pose safety hazards while maintaining the structural integrity and convertibility of the system.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The second seat attachment is designed to nest against the stroller frame when not in use, with folding components that tuck into designated spaces. This nesting arrangement ensures that the attachment mechanism does not create safety hazards by occupying unnecessary space or presenting sharp edges when the second seat is detached.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Ease of operation

If detachable covers are used for the seat attachment mechanism, then access to the mechanism is possible, but the covers can be easily lost when the seat attachment is in use

Engineering Contradiction:

Improveaccess to attachment mechanismVSAvoidretention of covers during use

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The protective covers are integrated directly into the seat attachment mechanism rather than being separate detachable components. This merging ensures that the covers remain securely in place during use while still allowing necessary access to the attachment mechanism when needed.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The covers are designed with differentiated properties: they provide protective coverage over critical mechanical components while incorporating transparent or open sections where access is needed. This local quality variation allows protection where required while maintaining operational access without requiring separate detachable covers that could be lost.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11731682B2Removable seat attachment for a stroller

Publication Date: 2023.08.22 BABY JOGGER II LLC

AI summary

A stroller is provided with the ability to removably couple and decouple a seat from the stroller as needed. The stroller can include a stroller frame. The stroller can also include one or more front wheels attached to the stroller frame and one or more rear wheels attached to the stroller frame. The stroller can also include a first seat coupled to the stroller frame. The stroller can include first and second seat attachment housings. Each of the seat attachment housings can include a cavity for receiving a corresponding one of the first and second seat attachment adapters. Each of the seat attachment housings can also include a door cover to prevent access to the respective cavity when not in use. The seat attachment adapters can be coupled to the respective seat attachment housings and a second seat can be coupled to the seat attachment adapters.