Stroller Locking Mechanism Single Cable Synchronization

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Solution Overview

Problem

Existing child holding devices, such as strollers and child seats, often have complex and error-prone mechanisms for folding and locking, requiring multiple Bowden cables to synchronize the release of locking elements, which can lead to malfunctions and increased costs.

Innovation Solution

A child holding device with a common actuating device that uses a single force transmission means, such as a Bowden cable, to simultaneously actuate both locking devices, ensuring synchronous operation and reducing the risk of malfunctions and costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple Bowden cables are used to synchronize locking elements, then the locking mechanism can be released on both sides of the folding axis, but the device complexity and potential for malfunctions increase

Engineering Contradiction:
Improvelocking mechanism reliabilityVSAvoidnumber of Bowden cables
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple locking operations into a single Bowden cable system. The actuating element on the pusher connects via one Bowden cable to a locking mechanism that simultaneously controls locking elements on both sides of the folding axis. This merging of functions reduces the number of cables from two to one, simplifying the overall device structure while maintaining reliable synchronous locking and unlocking operation.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If two Bowden cables are used to release locking elements synchronously, then the folding operation can be released without catching, but the manufacturing cost and device complexity increase

Engineering Contradiction:
Improvesynchronous folding operationVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent merges the function of two separate Bowden cables into a single cable system. The actuating element connects through one Bowden cable to a locking mechanism that uses a common moving component (such as a cam or lever) to simultaneously release locking elements on both sides of the folding axis. This approach achieves synchronous folding operation while reducing manufacturing complexity and cost by eliminating the need to manufacture, install, and maintain two separate cable systems.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If multiple locking devices are used to secure the stroller state, then the locking is more reliable, but the device complexity and cost increase

Engineering Contradiction:
Improvestate locking reliabilityVSAvoidnumber of locking devices
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs multiple locking elements (such as latches or cam locks) that are mechanically coupled through a common actuating mechanism. When the single Bowden cable is actuated, it moves a central locking component that simultaneously engages or disengages multiple locking elements distributed at different locations. This configuration provides reliable state locking through multiple points of engagement while avoiding the complexity of independently controlling each locking device with separate actuators and cables.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20240227638A9Child holding device, more particularly stroller
Publication Date: 2024.07.11 CYBEX GMBH
  • US20240227638A9 patent drawing
  • US20240227638A9 patent drawing

AI summary

Described is a child holding device, more particularly a stroller and/or child seat, comprising a setting device for setting a state of the child holding device, a locking mechanism comprising a first locking device and at least one second locking device for locking the state, and a manual, actuation device for actuating the first locking device and the at least one second locking device, wherein the actuation device is connected by means of a common force transmission device to the first locking device and the at least one second locking device.