Diving Mask Lens Assembly With Cam Release and Watertight Sealing

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Solution Overview

Problem

Existing assembly/disassembly systems for diving mask lenses are impractical, often causing damage to the product or operator, requiring significant effort, and are difficult to use without specialized tools.

Innovation Solution

A cam-based locking/unlocking mechanism that produces elastic deformation of the inner frame, allowing the outer frame to be released without tools, using a screwdriver for easier assembly/disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If assembly screws are used to connect the inner frame to the main frame, then watertight integrity is guaranteed, but the assembly process becomes laborious and time-consuming

Engineering Contradiction:
Improvewatertight integrityVSAvoidassembly process
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the traditional screw-based mechanical fastening system with a cam-based locking mechanism. The cam, when rotated, leverages elastic deformation of the inner frame to automatically secure the lens assembly, eliminating the need for multiple screws and significantly simplifying the assembly process while maintaining watertight integrity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention utilizes elastic deformation as a key parameter change mechanism. The inner frame is designed to elastically deform under cam pressure, creating a secure locking state that maintains compression on the gasket for watertight sealing, while allowing reversible deformation for easy assembly and disassembly.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If hooking teeth are used for assembly between the outer frame and inner frame, then assembly is simplified, but disassembly becomes difficult and may damage the plastic parts

Engineering Contradiction:
Improveassembly simplicityVSAvoiddamage to plastic parts
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent employs a dynamic locking mechanism using a cam that can be rotated between locked and unlocked positions. This dynamic system allows easy assembly by rotating the cam to engage, and easy disassembly by rotating it back, eliminating the need for forceful prying that damages traditional hooking tooth designs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention replaces the static hooking teeth mechanical system with a cam-based system that uses elastic deformation and rotational motion. This substitution eliminates the damaging prying action required to disengage hooking teeth while maintaining simple assembly through the elastic engagement mechanism.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If considerable effort is applied to disassemble the mask using traditional systems, then lenses can be replaced, but the operator's fingers may be hurt or parts damaged

Engineering Contradiction:
Improvelens replacement capabilityVSAvoidphysical injury to operator
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces force-intensive mechanical prying systems with a cam-based system that uses rotational motion and elastic deformation. This substitution reduces the disassembly force from damaging levels to minimal levels, eliminating finger injuries while maintaining full lens replacement capability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The cam mechanism is designed to be operated directly by the user's fingers without requiring external tools. The mechanical advantage provided by the cam geometry allows a user to easily unlock and replace lenses through simple rotational motion, making the system self-serviceable and tool-free.

Inventive Principle:
Principle #25Self-service

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

Facilitates simple and damage-free assembly/disassembly of diving mask lenses, reducing physical effort and preventing injuries, while maintaining watertight integrity.

Implementation Method 1

the locking/unlocking means (6) is a cam 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

PatentUS20260091272A1Assembly / disassembly system for lenses of diving masks
Publication Date: 2026.04.02 AQUALUNG CORP
  • US20260091272A1 patent drawing
  • US20260091272A1 patent drawing
  • US20260091272A1 patent drawing

AI summary

The present invention concerns a swimming or diving mask comprising:a pair of side-by-side symmetrical removable lenses (1A,1B) with respect to a vertical axis Y-Y, said lenses being distinct from each other or formed in one piece, wherein said lenses have an inner surface (1C) and an outer surface (1D),an inner frame (2) on which the periphery of the inner surface (1C) of the lenses (1A,1B) rests on,an outer frame (3) configured to be removed from the swimming or the diving mask and localized on the periphery of the outer surface (1D) of said lenses (1A,1B),a skirt (4),at least one sealing means (5) located on said inner frame (2) and sealingly connected to the periphery of the inner surface of said lenses (1A,1B) and adapted to be applied in a watertight fashion onto said lenses (1A,1B),at least one locking/unlocking means (6) located on said outer frame (3), said locking/unlocking means (6) being configured to engage with said inner frame (2) and, when engaged, to secure the lenses (1A,1B) between said outer frame and said inner frame, characterized in that:the locking/unlocking means (6) comprises a cam (6A) which, by rotation, produces an elastic deformation of the inner frame (2), said produced elastic deformation enabling a releasing of the outer frame (3) from the inner frame (2).