Flat-fold respirator attachment mechanisms for shape stability
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Solution Overview
Problem
Existing respirators, particularly flat-fold models, face challenges in maintaining a cup-shaped configuration during storage and use, which can lead to reduced breathable volume and increased complexity in re-fitting, as they often collapse when not in use.
Innovation Solution
Incorporating left and right attachment mechanisms between tabs and panels of the mask body, which releasably connect to maintain the cup-shaped configuration both during wear and storage, preventing collapse and simplifying re-fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If flat-fold respirators are designed to be foldable for storage, then storage compactness is improved, but shape stability during use deteriorates
Solution Approach 1:
The mask body is divided into multiple panels (upper panel, lower panel, central panel) that can be independently folded and attached. This segmentation allows the respirator to be collapsed into a compact flat configuration for storage while maintaining the ability to form a stable cup-shaped configuration during use through selective attachment of panels.
Solution Approach 2:
The respirator employs dynamic attachment mechanisms that allow the mask body to transition between a collapsed flat state for storage and an expanded cup-shaped state for use. The attachment mechanisms enable the structure to adapt its configuration based on whether it is being stored or worn, resolving the contradiction between compact storage and shape stability.
2Stability of the object's composition
If attachment mechanisms are added to maintain cup-shaped configuration, then shape stability is improved, but device complexity increases
Solution Approach 1:
The attachment mechanisms are integrated directly into the mask body structure itself, merging the function of shape maintenance with the structural components. The tabs and attachment mechanisms are formed as part of the mask body panels, eliminating the need for separate external fastening devices and reducing overall structural complexity.
Solution Approach 2:
The attachment mechanisms serve multiple functions: they maintain the cup-shaped configuration during use, enable easy folding for storage, and provide structural support. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving shape stability.
3Stability of the object's composition
If weld lines and seams are used to maintain configuration, then shape stability is improved, but manufacturing complexity increases
Solution Approach 1:
The mask body is constructed from separate panels that are attached together through tabs and attachment mechanisms rather than being continuously formed with weld lines. This segmentation allows each panel to be manufactured independently and then assembled, simplifying the manufacturing process while maintaining configuration stability through the attachment mechanisms.
Data Source
AI summary
Various embodiments of a respirator and a method of forming a respirator are disclosed. The respirator can include a mask body having an upper panel, a lower panel, and a central panel disposed between the upper and lower panels. The mask body can also include a left attachment mechanism disposed between a left tab of the mask body and a left portion of at least one of the upper panel and the lower panel when the mask is in an open condition, and a right attachment mechanism disposed between a right tab of the mask body and a right portion of at least one of the upper panel and the lower panel when the mask body is in the open condition.