Breathing Mask Filter Module Sliding Seat Attachment

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing respirator masks are limited in their ability to easily replace and attach filter modules of different sizes and shapes, restricting flexibility and compatibility.

Innovation Solution

A respirator mask design featuring a cup-shaped receiving recess with guide webs and grooves allows for lateral insertion of filter modules, providing a secure and adjustable attachment system with elastic sealing and latching mechanisms, enabling the use of variously sized and shaped filter modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a plug-in frame design is used for filter module attachment, then the filter module is fully received and secured, but the filter module design is limited to the frame shape and different sized filter modules cannot be attached

Engineering Contradiction:

Improvecompatibility of different filter module sizesVSAvoiddesign complexity of receiving recess

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The receiving recess is segmented into functional zones: guide webs for alignment, a base for support, and an open front for insertion. This segmentation allows the filter module to be received only in the necessary regions while leaving the front portion exposed for different designs and sizes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The receiving recess structure serves multiple functions: it guides the filter module during insertion via guide webs, secures the filter module in the correct position, and accommodates various filter module sizes and shapes. This universal design allows different filter modules to be attached to the same respirator mask.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a tight seal is required for filter module attachment, then the filter module must be fully received and secured, but this limits the filter module design to the receiving recess shape

Engineering Contradiction:

Improvesealing quality of filter module attachmentVSAvoidvariety of filter module shapes and sizes

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The receiving recess provides localized sealing and securing only in the regions where guide webs and base contact the filter module, rather than requiring complete enclosure. This local quality approach ensures reliable attachment while allowing the exposed front portion of the filter module to have varied designs.

Inventive Principle:

Principle #3Local quality

3Ease of operation

If filter modules are easily replaceable with simple insertion, then the attachment mechanism is simplified, but secure fixation and tight seal may not be achieved

Engineering Contradiction:

Improveease of filter module replacementVSAvoidsecurity of filter module attachment

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The guide webs are pre-positioned in the receiving recess to guide the filter module during insertion. This preliminary guiding action ensures that the filter module is automatically aligned and secured in the correct position during the simple insertion process, achieving both ease of operation and reliable fixation.

Inventive Principle:

Principle #10Preliminary action

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 easy replacement and secure attachment of filter modules of different sizes and shapes, ensuring a tight seal and comfortable use while maintaining air purity and reducing back pressure.

Implementation Method 1

the filter module base is designed to be elastic, at least in some areas, in order to ensure that the filter module is prestressed in the receiving recess, which serves to lock the filter module in place

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

the guide webs and/or the guide grooves run at least in sections inclined towards a bottom of the receiving recess, so that the filter module is moved in the direction of the bottom of the receiving recess when it is pushed in

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentEP2913083B1Breathing mask with push fit device

Publication Date: 2017.04.12 MOLDEX METRIC AG & CO KG

AI summary

The invention relates to a respiratory mask (1) with a mask body (2) with at least one exhalation valve (5) and with at least one inhalation valve (7, 8), with at least one filter module (9, 10) associated with the inhalation valve (7, 8) and with a sliding seat device (38, 39) for detachably attaching the filter module (9, 10) to the mask body (2), which has a receiving recess (13, 14) for receiving the filter module (9, 10) at least partially.It is provided that the receiving recess (13,14) is essentially cup-shaped and has at least one guide rib (25-28) projecting into the receiving recess on each of two opposite side walls (21,12;23,24), wherein the guide ribs (25-28) run parallel to each other, and that the filter module (9,10) has at least one guide groove (36,37) of the sliding seat device (38,39) on each of two opposite side wall sections (34,35) for receiving one of the guide ribs (25-28).