Face Mask Forehead Support Hinged Adjustment
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Solution Overview
Problem
The forehead support on existing face mask assemblies is complex in structure, making it inconvenient for users to adjust to fit different forehead heights, affecting wearing comfort and usability.
Innovation Solution
A face mask assembly design featuring a connecting member hinged to an air intake port, allowing the forehead support to swing and adjust to various forehead heights, with limiting parts preventing rotation and ensuring secure attachment, enabling easy and quick height adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a forehead support is added to the face mask assembly, then the wearing comfortability is improved by distributing pressure to the forehead, but the device complexity increases and adjustment convenience deteriorates
Solution Approach 1:
The forehead support is divided into separate functional parts: a fitting part that contacts the forehead, a mounting part that attaches to the frame, and a connecting part that enables adjustment. This segmentation allows each part to perform its specific function efficiently while keeping the overall structure manageable and adjustable.
Solution Approach 2:
The connecting part incorporates a hinged connection between the air intake port and connecting member, allowing the forehead support to swing and adjust dynamically to different forehead heights. This dynamic mechanism replaces complex fixed structures with a simple, adaptable joint that provides continuous adjustment capability.
2Adaptability or versatility
If the forehead support structure is made complex to provide adjustment capability, then adaptability to different forehead heights is improved, but ease of operation deteriorates due to adjustment difficulty
Solution Approach 1:
The hinged connection enables the connecting member to swing freely, allowing the forehead support to adapt to different forehead heights through simple swinging motion. This dynamic joint provides continuous adjustment range without requiring complex mechanisms or multiple fixed positions.
Solution Approach 2:
The forehead support structure allows users to easily adjust the position by simply swinging the connecting member to the appropriate angle. The self-adjusting capability eliminates the need for complex locking mechanisms or tool-assisted adjustments, making the adaptation process intuitive and user-friendly.
3Reliability
If limiting parts are added to prevent rotation, then reliability of attachment is improved, but device complexity increases
Solution Approach 1:
The limiting function is separated into distinct components: a first limiting part on the air intake port and a second limiting part on the connecting member. These limiting parts work together as a paired system to constrain rotation, providing reliable attachment stability through simple geometric constraints rather than complex locking mechanisms.
Data Source
AI summary
A face mask assembly, including: a frame, including a frame body, the frame body being provided with an air intake port; a connecting member, including a first end hingedly connected to the air intake port and a second end having a forehead support fixedly mounted thereon; the second end of the connecting member is used for communication with an air intake tube; the forehead support include a fitting part that fits to the forehead, a mounting part fixedly mounted on the second end of the connecting member, and a connecting part connecting the fitting part and mounting part.