Visualizing solutions through sketching, CAD rendering, and physical modeling
Tear Off Solutions
The tear off is the most efficient of the vision clearing systems in motocross. There are opportunities to maintain this efficiency while also reducing the negative impact of the mylar tear offs by using a biodegradable alternative such as cellulose acetate.
When using stacked tear offs, riders can encounter the problem of accidentally pulling all of their tear offs at once. This can ultimately force them into pulling off their goggles , increasing their risk of eye injury from rocks and other debris. A clip that would help riders more easily and efficiently use their tear offs was explored and prototyped.
Testing the frame
An ABS 3D printed model allowed testing of the concept as it relates to a motocross helmet and a rider's face.
The model included a snap in lens change feature designed to ease the process of changing a lens. Flexible snap locks secure to the outer frame while the locking mechanism fits through the lens and into the back of the frame.
No more Tear off
Producing physical models and sketches for biodegradable tear off solutions allowed exploration of form and dimensions for the goggle.
However, the impact of using a biodegradable material as an alternative to mylar did not merit further exploration considering the growing bans on all tear offs around the world.
Therefore the criteria for the project was reevaluated to include the improvement of vision, performance, and interaction, while creating a roll off vision clearing system that can be used on an everyday basis.
improve vision, performance, and interaction
Create every ride roll off system
Current roll off systems allow riders to retain some vision in the worst conditions, however the average field of view is very limited and potentially dangerous to the rider.
Solutions for a roll off system and goggle with unique geometry were developed to allow for a larger field of clear vision.
Studying the overall sizing and nasofrontal angles of the average 50th percentile man, as well as the opening on multiple helmet brands helped to ensure the updated shape would fit.
Lens shape change
Using the dimensional research, the shape of the lens was altered to provide a much larger field of vision. By extending the lens and frame past the bridge of the nose, the new shape also allowed for the ability to use a wider roll off film strip.
Slimming the roll
Existing roll off systems come with film rolls that allow for up to forty pulls. This is important for very wet and muddy conditions, however is unnecessary when used for every day riding. The film roll was reduced to ten pulls based off the average number of tear offs used per moto according to the survey of local riders.
The smaller film roll allows for slimmer canisters and gives the rider a wide, 140° degree view.