Diving Mask Lens Mounting With Cam-Release Inner Frame

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Solution Overview

Problem

Existing systems for assembling and disassembling diving masks are impractical, often requiring significant physical effort, risking damage to the mask components and potential injury to the user.

Innovation Solution

A cam-based locking/unlocking mechanism that induces elastic deformation of the inner frame, allowing the outer frame to be released from the inner frame through rotation, facilitated by a screwdriver for easy assembly and disassembly without damaging the mask components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If interlocking teeth are used to assemble the parts, then the assembly is secure, but it becomes difficult to disassemble and may damage the plastic parts

Engineering Contradiction:
Improveassembly securityVSAvoiddisassembly ease
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The patent employs a dynamic elastic deformation mechanism where the inner frame is temporarily deformed to release the interlocking teeth from their engaged position. This allows the same interlocking structure to provide strong assembly security while enabling easy disassembly through controlled elastic deformation, resolving the contradiction between secure assembly and easy disassembly.

Inventive Principle:
Principle #15Dynamics

2Reliability

If assembly screws are used to tighten the frames, then the seal is watertight, but the assembly process becomes laborious

Engineering Contradiction:
Improvewatertight sealVSAvoidassembly simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent extracts the fastening function from traditional screws and replaces it with an elastic deformation-based locking mechanism. The inner frame's elasticity itself provides the clamping force needed for the watertight seal, eliminating the need for separate fastening components and simplifying the assembly process while maintaining seal reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Strength

If considerable effort is required to disassemble the mask, then the parts may be securely held, but it risks injuring the user's fingers

Engineering Contradiction:
Improvepart retentionVSAvoiduser injury risk
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent introduces elastic deformation as an intermediary mechanism between the user's action and the part retention force. By deforming the elastic inner frame, the user can safely release the locking teeth without applying excessive force directly to the rigid components, thereby maintaining secure part retention while eliminating the risk of finger injury.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 simple and damage-free assembly and disassembly of diving mask lenses, reducing the risk of injury and preserving the integrity of the mask components.

Implementation Method 1

the locking/unlocking means (6) is a cam (6A) which, by rotation, produces an elastic deformation of the inner frame (2), releasing the outer frame (3) from the inner frame (2)

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP4522501B1Diving mask lens mounting/dismounting system
Publication Date: 2026.02.04 AQL HEAD HOLDINGS
  • EP4522501B1 patent drawingFigure 1~2
  • EP4522501B1 patent drawingFigure 3~4
  • EP4522501B1 patent drawingFigure 5~6

AI summary

The present invention relates to a swimming or diving mask characterized in that a locking/unlocking means (6) comprises a cam (6A) which, by rotation, causes elastic deformation of the inner frame (2), said elastic deformation allowing the outer frame (3) to be released from the inner frame (2).