Respiratory Mask Buckle Assembly Pivoting Hook Mechanism

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Solution Overview

Problem

Conventional buckle assemblies for respiratory masks are complex and difficult to operate, lacking a simple and intuitive mechanism for easy attachment and detachment.

Innovation Solution

A buckle assembly featuring a female part with pivot holes and guiding grooves, and a male part with a hook section and pivot protrusions, allowing for easy pivoting between angular positions for secure engagement and disengagement, facilitated by an elastic strap for automatic adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional quick release buckle assembly with insertion slot and catch is used, then the buckle can achieve detachable engagement, but the structure becomes complex and difficult to operate

Engineering Contradiction:

Improveease of operationVSAvoiddevice complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The buckle assembly is divided into distinct male and female parts with specific functional elements (pivot holes, guiding grooves, hook section, curved vertical wall) that work together through a simplified pivoting motion, breaking down the complex engagement process into intuitive rotational movements

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of using a conventional insertion and catching mechanism, the invention inverts the approach by using a pivoting hook section that engages with a curved vertical wall, transforming the linear insertion motion into a rotational pivoting motion that is easier to operate

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If a conventional quick release buckle assembly is used, then detachable engagement is achieved, but the mechanism lacks simplicity and intuitiveness

Engineering Contradiction:

Improveoperational simplicityVSAvoidmechanism complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The hook section and curved vertical wall feature curved geometries that guide the pivoting motion naturally, making the engagement and disengagement movements intuitive and easy to perform without complex mechanisms

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The buckle assembly allows for angular position changes between the male and female parts, enabling smooth transitions between engaged and disengaged states through controlled pivoting motion rather than complex mechanical operations

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10188175B2Buckle assembly and respiratory mask including the same

Publication Date: 2019.01.29 BESMED HEALTH BUSINESS CORP

AI summary

A buckle assembly for a respiratory mask comprises a female part and a male part. The female part includes top and bottom walls and a curved vertical wall. The top wall is formed with a top pivot hole and a top guiding groove. The bottom wall is formed with a bottom pivot hole and a bottom guiding groove. The male part includes a hook section that has a free end formed with top and bottom pivot protrusions that are slidable respectively along the top and bottom guiding grooves into the top and bottom pivot holes, respectively, so as to bring the male part to pivot relative to the female part between a first angular position and a second angular position in which the curved vertical wall and the hook section hook to each other.