Pet Stroller Carrier Attachment Mechanism

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Solution Overview

Problem

Existing pet strollers have an unstable combination of the pet carrier and stroller body, posing safety risks during transport on rough roads or in emergencies, and lack easy detachment for user portability.

Innovation Solution

A pet stroller design featuring a pet carrier with a base and engaging portion that can be securely and easily attached to and detached from the stroller body using a controlling assembly with an adjusting wire and cam mechanism, allowing for quick removal and portability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the pet carrier is fastened on the stroller body using webbing or fastener, then the pet carrier can be attached to the stroller body, but the combination is unstable and may endanger pet safety when moving on rough roads

Engineering Contradiction:
Improvestability of pet carrier attachmentVSAvoiddifficulty of secure attachment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the soft webbing or fastener-based mechanical fastening system with a rigid tube-and-plate engagement system. The landing tubes on the stroller body engage with the plate structure of the pet carrier, providing stable mechanical support that prevents movement on rough roads while maintaining ease of attachment through simple engagement motions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If the pet carrier is securely fastened to the stroller body, then the pet carrier stability is improved, but the user cannot easily remove the pet carrier for portability

Engineering Contradiction:
Improvestability of pet carrier attachmentVSAvoidtime required to attach and detach pet carrier
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent creates a dynamic attachment system where the pet carrier can transition between two stable states: securely attached for transport and easily detached for portability. The tube-and-plate engagement mechanism allows the carrier to be firmly fixed during movement while enabling quick release when needed, optimizing both stability and operational flexibility.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the pet carrier is designed to be detachable from the stroller body, then the user can carry the pet carrier separately, but the combination of pet carrier and stroller body becomes unstable

Engineering Contradiction:
Improveportability of pet carrierVSAvoidstability of pet carrier attachment
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the attachment system into separate functional components: the landing tubes on the stroller body and the engagement plate on the pet carrier. This segmentation allows the pet carrier to be easily detached and carried separately when needed, while ensuring stable attachment when engaged with the stroller body through the tube-plate connection mechanism.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS7568450B2Pet stroller having a portable pet carrier
Publication Date: 2009.08.04 WONDERLAND NURSERYGOODS CO LTD
  • US7568450B2 patent drawing
  • US7568450B2 patent drawing
  • US7568450B2 patent drawing

AI summary

A pet stroller includes a pet carrier having a base and an engaging portion formed on the base and a stroller body having two landing tubes configured to support the pet carrier and two holding portions connected with the landing tubes. The engaging portion of the pet carrier being selectively engaging and disengaging with the holding portions of the stroller body to enable the pet carrier to be detachably attached to the stroller body. In addition, the pet stroller further includes a controlling assembly for removing the pet carrier from the stroller easily and quickly and fastening the soleplate on the holding portions.