Child-Carrier-Triggered Stroller Folding With Lock Release

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Solution Overview

Problem

Existing foldable strollers require independent operations for the stroller frame and seat, making the folding process inconvenient.

Innovation Solution

A baby stroller with a folding mechanism triggered by a child carrier, where the child carrier's pivotal movement releases a locking component to allow the stroller frame to fold, eliminating the need for separate operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the stroller frame and child carrier are folded independently, then the folding mechanism is simple, but the folding operation becomes complex and inconvenient

Engineering Contradiction:

Improvefolding operationVSAvoidfolding mechanism

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines the folding operations of the stroller frame and child carrier into a single integrated mechanism. The locking component is coupled to both the stroller frame and the child carrier, allowing one pivotal movement to simultaneously trigger both folding actions, thereby simplifying the user operation while maintaining mechanical integration.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The locking component serves as an intermediary element that mediates between the child carrier and the stroller frame. When the child carrier pivots, it actuates the locking component, which in turn releases the stroller frame, enabling coordinated folding of both components through a single user action.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the locking component is engaged to restrain folding, then the stroller frame remains stable, but the folding action is prevented

Engineering Contradiction:

Improvestroller frame stabilityVSAvoidfolding action

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The locking component transitions between static (engaged) and dynamic (disengaged) states based on the operational needs. During normal use, the locking component remains engaged to maintain frame stability. During folding, the child carrier's pivotal movement dynamically actuates the locking component to disengage, enabling the folding action while preserving stability during stationary use.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system employs self-service folding where the child carrier's own pivotal movement automatically actuates the locking component to release the stroller frame. The child carrier effectively services the folding function by triggering the locking mechanism through its own motion, eliminating the need for separate manual intervention.

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP4344980B1Baby stroller with a folding mechanism triggered by a child carrier

Publication Date: 2026.02.25 WONDERLAND SWITZERLAND AG

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AI summary

The present invention discloses a baby stroller (1, 1') includes a stroller frame (2, 5), a child carrier (3) which is able to be positioned on the frame, and a locking component (42, 42', 65) is able to lock the frame in an unfolding state. Said child carrier (3) can be rotated relative to the stroller frame (2, 5) and allow a folding action of the frame during a pivotal movement of the child carrier (3) relative to the stroller frame (2, 5). Therefore, present invention allows a user to fold the child carrier (3) and the stroller frame (2, 5) together, which brings convenience in use.