Respirator Mask Viewing Window Stiffening
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Solution Overview
Problem
Existing mouth guard devices for respiratory protection systems lack usability and comfort, particularly in providing clear visibility of the user's mouth while maintaining respiratory protection.
Innovation Solution
A mouth guard device with a flexible mask base body and a viewing window made of transparent, bending-resistant material, allowing for non-verbal communication and easy replacement, along with a drain valve for pressure regulation, ensuring constant airflow and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the mask base body is made entirely of pliable material to ensure comfort and flexibility, then ease of operation is improved, but structural stability deteriorates
Solution Approach 1:
The patent applies local quality by integrating stiffening elements (34) at specific locations within the mask base body (14) rather than making the entire structure rigid. These stiffening elements are strategically positioned to provide structural support where needed (in the breathing area) while allowing the rest of the mask to remain pliable and comfortable against the user's face.
Solution Approach 2:
The mask base body combines different material properties by integrating stiffening elements into the pliable material matrix. This composite structure allows the mask to exhibit both flexible characteristics (for comfort and conformability) and rigid characteristics (for maintaining breathing area shape and support), resolving the contradiction between softness and structural integrity.
2Ease of operation
If a viewing window is integrated into the mask base body to provide visibility, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The viewing window (26) is merged with the mask base body (14) to form an integrated structure. The window is seamlessly incorporated into the mask's breathing area, allowing visibility functionality to be combined with the protective mask structure without requiring separate attachments or complex mounting mechanisms.
Solution Approach 2:
The viewing window is implemented as a thin, transparent pane that integrates with the flexible mask material. This thin-film approach allows the window to be incorporated into the soft mask structure without significantly increasing bulk or complexity, maintaining the overall simplicity of the device while adding the visibility function.
3Ease of operation
If the viewing window is made of transparent material to ensure visibility, then ease of operation is improved, but reliability deteriorates due to potential deformation
Solution Approach 1:
The stiffening elements (34) are positioned to provide localized support to the viewing window area (26), preventing deformation of the transparent pane while maintaining the overall flexibility of the mask. This targeted reinforcement ensures the window remains stable and reliable for visibility purposes without compromising the pliability of the rest of the mask base body.
Solution Approach 2:
The combination of the transparent viewing window material with the stiffening element structure creates a composite assembly that maintains dimensional stability. The stiffening elements provide the necessary rigidity to prevent window deformation while the integration method maintains the overall flexibility and comfort of the mask structure.
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a face mask for a respiratory protection system (12), in particular a powered air-purifying respirator (PAPR), comprising at least one mask body (14) designed to cover the mouth and/or nose area of a user (16), which at least partially defines a breathing area (18) and which in particular consists at least largely of a flexible material, and comprising at least one breathing air supply line (20) connected to the mask body (14), which defines at least one breathing air channel (22) opening into the breathing area (18) and designed to guide an active breathing airflow (24). It is proposed that the face mask has at least one viewing window (26), wherein the mask body (14) has a recess (28) with at least one receiving area (30) for receiving the viewing window (26).