Magnetic Child Harness Buckle for Secure One-Handed Latching
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Solution Overview
Problem
Existing child safety seat harness buckles require complex operations with two hands, complicating the task of securing or removing an infant, especially when the infant is uncooperative.
Innovation Solution
A buckle with a releasable latching mechanism using magnetic elements to urge base and latch parts into engagement during connection and apart during disconnection, featuring a magnetic slide and catch slide with biased movement along parallel axes, allowing single-handed operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex connectors are used to join or separate harness straps, then the connection security is improved, but the ease of operation deteriorates requiring two hands
Solution Approach 1:
The patent replaces complex mechanical connectors with a magnetic latching mechanism. Magnets provide automatic engagement and secure holding without requiring complex mechanical operations, enabling single-handed operation while maintaining connection security.
Solution Approach 2:
The magnetic latching mechanism automatically engages and latches the shoulder harness straps without requiring manual intervention for the latching action itself. The system serves itself by using magnetic attraction to secure the connection, freeing the caregiver's hands.
2Device complexity
If traditional buckles are used, then the structural simplicity is maintained, but the productivity deteriorates due to time-consuming operations
Solution Approach 1:
The patent substitutes traditional mechanical buckling operations with magnetic attraction and latching. The magnets automatically pull the harness straps together and secure them, eliminating the need for manual threading and buckling actions, thus dramatically increasing operation speed.
Solution Approach 2:
The magnetic elements are pre-positioned in the buckle and harness straps so that when brought together, the magnetic attraction immediately engages the latching mechanism. This preliminary positioning of magnetic elements enables instant connection without step-by-step manual operations.
3Ease of operation
If magnetic elements are added to the latching mechanism, then the ease of operation is improved for single-handed use, but the device complexity increases
Solution Approach 1:
The patent uses magnetic fields to replace complex mechanical actuation mechanisms. Instead of requiring springs, levers, or buttons for single-handed operation, simple magnetic elements create automatic engagement and release mechanisms that are easier to operate but add magnetic components to the system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy, secure, and efficient connection and disconnection of the buckle with one hand, providing increased resistance to separation when connected and being durable, inexpensive, low maintenance, and simple to use.
Implementation Method 1
magnetic elements arranged to urge the base part and the latch part into engagement during the connection operation
Implementation Method 2
magnetic elements arranged to urge the base part and the latch part apart during the disconnection operation
Data Source
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AI summary
A buckle (10) for a child safety seat harness having a base part (20) and a latch part (40), the latch part (40) having a releasable latching mechanism that includes a plurality of magnetic elements (62, 63) arranged to urge the base and latch parts into engagement during a connection operation and to urge the base and latch parts apart during a disconnection operation that also releases the latch.