Child Carrier Harness Buckle With Parallel-Release Motion
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Solution Overview
Problem
Existing child carrier device harness systems are prone to accidental unfastening due to external pressure on the release button, which can inadvertently unlock the buckle, compromising safety.
Innovation Solution
A harness fastener system featuring movable plugs and a release button that move parallel to the buckle's front surface, allowing for secure engagement and disengagement, with a design that reduces the likelihood of accidental unfastening by ensuring the release button's position is less susceptible to external pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the release button is positioned to be easily accessible for unlocking, then the ease of operation is improved, but the reliability deteriorates due to susceptibility to accidental unfastening from external pressure
Solution Approach 1:
The patent changes the direction of movement from perpendicular to parallel. The release button moves parallel to the front surface of the buckle rather than perpendicular to it. This dimensional change in movement direction allows the button to be easily pressed by finger motion while requiring deliberate action to engage the plug, reducing accidental activation from external pressure on the child.
Solution Approach 2:
The patent inverts the traditional buckle mechanism where the button moves perpendicular to the surface. Instead, the release button moves parallel to the front surface in the same direction as plug insertion. This inversion makes the unlocking action more deliberate and less susceptible to accidental activation while maintaining ease of operation.
2Ease of operation
If the release button moves perpendicular to the front surface for easy actuation, then the ease of operation is improved, but the object-affected harmful factors worsen due to increased susceptibility to external pressure causing accidental unfastening
Solution Approach 1:
The patent changes the movement direction of the release button from perpendicular to parallel relative to the front surface. This dimensional change ensures that external pressure from the child's body does not directly translate into button activation, while finger pressure from the rear can still easily move the button parallel to the surface for intentional unlocking.
3Ease of manufacture
If the plug moves perpendicular to the front surface for traditional engagement, then the ease of manufacture is improved, but the reliability worsens due to increased risk of accidental unfastening
Solution Approach 1:
The patent modifies the engagement direction so that the plug moves parallel to the front surface of the buckle during insertion and engagement. This change in movement direction, while potentially increasing manufacturing complexity, significantly improves reliability by making the engagement less susceptible to accidental unfastening from external pressure on the child.
Data Source
AI summary
A harness fastener system for a child carrier device comprises a first plug, and a buckle including a front surface and a release button. The first plug is movable along a first direction substantially parallel with the front surface for engaging with the buckle, and the release button is movable along a second direction substantially parallel with the front surface for pushing the first plug out of the buckle.