Safety Eyewear With Interjacent Joints For Helmet Mounting
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Solution Overview
Problem
Existing safety eyewear designs for helmets often lack adjustability, are prone to jamming, and interfere with hearing protection, limiting comfort and readiness for use.
Innovation Solution
The safety eyewear features arms with interjacent joints that allow for pivotal movement, enabling stepless adjustment and multiple positioning options, ensuring comfortable fit and compatibility with hearing protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If safety eyewear is disposed on the helmet with arms pivotal at ends only, then the structure is simple, but the eyewear jams when force is not uniformly applied and lacks intermediate stable positions
Solution Approach 1:
The arm is divided into two segments (first arm segment and second arm segment) connected by an interjacent joint, allowing independent movement of each segment. This segmentation enables the eyewear to navigate around obstacles like hearing protectors and provides multiple stable positions without jamming, as each segment can adjust independently to uneven forces applied by the user.
2Adaptability or versatility
If eyewear moves along a predetermined path with limited adjustment, then the structure is stable, but individual adaptation and comfort are reduced
Solution Approach 1:
The arm mechanism transitions from a rigid predetermined path to a dynamic system with an interjacent joint that allows variable positioning. The first and second arm segments can pivot relative to each other, creating multiple stable equilibrium positions that adapt to the user's needs while maintaining mechanical stability through the natural rest positions of the articulated joints.
3Productivity
If eyewear is positioned close to the user's face for continuous use, then readiness for use is improved, but comfort is reduced due to pressure against the face
Solution Approach 1:
The articulated arm with interjacent joint enables the eyewear to be dynamically positioned at multiple distances from the user's face. Users can adjust the eyewear to rest lightly on the face for continuous use or raise it completely when not needed, providing both readiness and comfort through variable positioning capability rather than fixed placement.
Data Source
AI summary
The disclosure relates to safety eyewear disposed in a safety helmet and including a transparent panel for positioning in front of the eyes of the wearer. At each side of the panel, arms are provided which, at their ends are pivotally connected, on the one hand to the panel and, on the other hand, to the helmet. The arms also each have an interjacent joint at a point between their respective ends.The disclosure also relates to a safety helmet provided with safety eyewear in accordance with the foregoing.