Breathable Mask Two-Point Head Strap Design
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Solution Overview
Problem
Conventional full-face snorkeling masks with four-point cross-head straps are cumbersome to put on and take off, and pose safety risks due to difficulty in quick removal, especially when water leaks inside, as they prioritize stability over convenience and emergency use.
Innovation Solution
A full-face snorkeling mask design utilizing a two-point fixed head strap, positioned on either side of the eye portion, to reduce mask height and volume, allowing the mask to be lighter, more convenient to wear, and provide better waterproofing without additional fastening devices for the mouth and nose area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a four-point cross head strap is used to ensure mask stability, then the mask can prevent leakage and maintain stability, but it becomes troublesome to put on and take off and cannot be quickly removed in emergency situations
Solution Approach 1:
The head strap system is segmented into a modular quick-release mechanism that allows the strap to be divided into adjustable segments. This enables the strap to be easily configured for stability during use and quickly released in emergency situations, resolving the contradiction between maintaining mask stability and enabling easy donning/doffing.
Solution Approach 2:
The head strap incorporates a dynamic quick-release mechanism that transitions from a fixed stable configuration during normal use to a rapidly deployable release state in emergencies. This dynamic capability allows the same strap to provide both stability and ease of removal depending on the operational context.
2Volume of moving object
If the mask body height is reduced to improve convenience and reduce volume, then the mask becomes lighter and more convenient to wear, but additional fastening devices are needed to maintain waterproofing at the mouth and nose area
Solution Approach 1:
The sealing skirt is merged with the main mask body to form an integrated waterproof barrier that extends to cover the mouth and nose areas. This integration eliminates the need for separate fastening devices while maintaining waterproofing, as the unified skirt design provides continuous sealing across all facial openings.
Solution Approach 2:
The sealing skirt serves multiple functions simultaneously: it provides waterproof sealing for the eyes, nose, and mouth areas while also acting as the primary fastening mechanism through its integrated design. This multi-functionality reduces the need for additional specialized fastening devices despite the reduced mask height.
Data Source
AI summary
A breathable mask including a body is provided. The body includes: a main frame, a lens and a waterproof sealing skirt, suitable for fitting on a user's face. The body further includes a head strap, which has two ends fixed to the main frame or the waterproof sealing skirt. The two ends are located to correspond to two sides of the user's eyes, respectively. The region where the waterproof sealing skirt is configured to contact the user's face has an uppermost portion and a lowermost portion, wherein a midpoint of the uppermost portion to a midpoint of the lowermost portion defines a maximum height ranging between 100 millimeters (mm) and 165 millimeters (mm).