6D Helmets

 

Helmet technology has not significantly advanced in over 55 years when EPS was first used as the energy management material of choice.

Today you have multi-density EPS, but not much more..

 

This changes everything..

Today, helmet technology is stagnant... multi-density EPS is about all weve gotten over many, many years of development... maybe some larger shells, more foam, but that alone will not improve the helmet to the level that our athletes need and deserve.

 

The more we studied the problems, the testing methodologies, and learned about head injury, the more we realized it would require a very creative and completely new approach to build a truly improved helmet. The helmet would need to manage critical angular acceleration issues present in all impacts, as well as reduce low-threshold energy transfer to the brain. We need a softer, more compliant helmet design, but without compromising high-energy performance.

 

This became our challenge and our goal: to develop a revolutionary design concept utilizing creative, forward-thinking technology that would change the market and improve the safety capabilities of the sports helmet.

 

Bob Webber

CEO 6D Helmets

I've been general editor of Australia's national brain injury magazine, Bridge, for 12 years. I've always had an interest in helmet design and safety but actively got involved after a good mate got a serious brain injury two years ago on one of our dirt rides. Since then I've been involved in the push for helmet standards reform within Australia, and also a push for updated helmet standards internationally.

Barry Morris
Cross Training Enduro Skills

Acceleration Force / Time

 

Current technology dictates that the exterior shell and the

corresponding interior liner are tasked with managing all

forces applied to the helmet, be them linear or angular.

 

When force is applied which exceeds the capability of the

helmet's combined resources, the excess force (i.e. energy)

is transferred to the head and brain of the user.

The desired function of helmets is to absorb and dissipate

as much energy as possible, OVER THE GREATEST

AMOUNT OF TIME POSSIBLE.

6D Tech Air Gap Technology
 

6Ds exclusive Air Gap" cooling system incorporates 13 interior transfer ports, 8 intake ports, and 5 exhaust ports.

 

The amount of time and energy devoted to moving air through the 6D helmet is second to none. Extensive front-to-back ventilation channels are fed by 3 large upper eyeport intake ports and 2 aggressive brow intake ports.

 

These intake ports combined with chin bar vent openings channel cool air into the ATR-1s air gap flushing hot air and moisture out the rear of the helmet

Angular Acceleration

 

Thomas A. Gennarelli, M.D. and Lawrence E. Thibault, M.D. concluded that angular acceleration contributes more than linear acceleration to concussive injuries, diffuse axonal injuries, and subdural hematomas.

 

Angular acceleration is the cause of rotational brain injuries. Rotational brain injuries can be serious, long lasting, and life threatening.

 

Experiments conducted by David C. Viano, PhD. M.D. and the Bioengineering Center at Wayne State University confirmed that a helmeted head sustained the same degree of angular acceleration as the un-helmeted head when subjected to identical impacts.

 

So, if angular acceleration is the major cause of brain injury, then how is the brain protected by traditional helmet technology?

 

Unfortunately, in the aspect of angular acceleration, it is not.

The focal point of traditional helmet design has always been directed at providing protection against linear impact energy test compliance. Helmets are tested to standards by dropping them in a vertical plane on very complex test equipment in a controlled environment.

 

This testing assures the public that a level of compliance is achieved before a particular helmet makes it to market. While this is an excellent control method, impacts in a real-world accident are in fact much different, and the impact will almost certainly be an oblique angle strike.

 

This means the helmet will impact an object or the ground at an angle greater or less than 90 degrees to the center of mass (the brain) within the helmet. During this event ( impact ), angular acceleration is transferred to the brain.

 

6Ds goal is to reduce this angular acceleration transfer thereby reducing the potential of brain injury. ODS" achieves this goal. In some test cases, the 6D ATR-1 off-road helmet reduces resultant angular acceleration over traditional helmet design by over 80%, resulting in a truly revolutionary helmet. 

 

6Ds ODS" equipped ATR-1 helmet delivers the best of all worlds; a helmet with great low-threshold energy compliance, mitigation of angular acceleration, and required high-energy performance all in one certified helmet design

Low-Threshold Energy

 

In recent years, research has provided alarming conclusions

surrounding the causes, severity, and long-term effects of

concussions.

 

We now know that even seemingly minor concussions

( Im fine, I just rang my bell ) may have much more serious

effects on the long-term health and well-being of ones brain.

 

It is well documented that concussions occur from impacts

in the range of 60 to 169 Gs* in the adult male

and may be location dependent.

 

This value is less in women and children.

 

Low-Threshold Energy, or low velocity impacts, is qualified

for sake of reference, throughout our documentation as velocity

equal to, or less than, 4m/sec (meters per second) as measured

on traditional linear helmet testing equipment.

 

A 4m/sec impact is equivalent to roughly 120 Gs being transferred to the brain in most current model Snell and ECE approved off-road helmets.

Thats 100% more than the energy necessary to sustain a concussion in an adult male!

Helmets certified to both the DOT FMVSS 218 and Snell 2010 standards

are very strong and have to manage linear drop test velocities of up to

7.75 m/sec to meet the standard in varying arrays of tests.

 

For a traditionally designed helmet to perform at this level, a stiff shell

and EPS combination is required.

 

This combination adds unnecessary weight to the equation, and limits the

capability of the EPS to function adequately at lower threshold

energy demands.

 

This is due in part to the higher density EPS formulation required to pass the combined standards. The alternate solution would be to have a very large

helmet with a lot of soft EPS foam installed, but this solution creates obvious problems as well.

 

Unfortunately, EPS foam just cannot support both ends of the energy demand spectrum at the same time without increasing its thickness by significant

margins and/or being formulated from softer EPS.

 

This is why the industry has evolved to multi-density EPS liners and

larger shell diameters over recent years. While this is an improvement

over single density EPS foam or extra large shells, it is not the ideal solution.

 

And none of this does anything for rotational shearing forces caused by angular accelerations due to oblique impacts. In other words, current helmet technology and design is still seriously lacking adequate protection from lower threshold energy demands.

 

The stiff shell and EPS is not sufficiently active inside this low-threshold energy range and has limited ability to mitigate angular acceleration.

6Ds fully-active ODS" dual-liner suspension system, dramatically improves low-threshold energy compliance while effectively maintaining high-energy protection as well. ODS" also adds a whole new dimension of much needed angular acceleration management, not found in conventional helmets of today.

 

*American Academy of Neurology / Ellen Deibert, MD / Richard Kryscio, PhDÿ

6D Shear-Away Visor Screws

 

Specifically manufactured of engineered plastic rather then aluminium or titanium, to allow the screws the shear in the event of a high-stress impact or snag, improving rider safety.

 

Centre Screw 73-1001

Side Screw Kit 73-1000

Screw Driver Key Kit 73-2000

6D Tech What is ODS?

ODS (Omni-Directional Suspension) ...

 

6Ds revolutionary patent pending ODS" ( Omni-Directional Suspension" )

represents a fully active, in-helmet suspension and kinetic energy

management system.

 

The mechanics, engineering, materials, and manufacturing are very

complicated, but actually, the concept is quite simple.

 

Working with leading research and development experts in the area of

motorcycle helmet safety, design, and advanced product testing, our

goal was simple; design a better performing off-road motorcycle helmet.

 

We applied creative clean-sheet engineering concepts to the problem and

started building prototype helmets for testing.

 

Extensive testing provided data to support a vastly superior proof

of concept design. This design matrix was taken into beta testing for

further evaluation and development, and then on to pre-production testing.

 

To manage kinetic energy ( including linear, angular, and lower-threshold acceleration energy ), the ODS" system starts with an internal EPS liner not unlike traditional helmets; but that is where the similarities end. With the ODS" system, the EPS liner is divided, creating a compound-liner assembly.

 

These two liners are separated by a very specific programmed array of elastomeric isolation dampers creating an air-gap. It is this array of isolation dampers surrounding the entire liner, combined with the air-gap, that affords the free-motion suspension capability of ODS."

 

The unique hourglass shape designed into the elastomeric isolation dampers function with specially designed frusto-conical ramping chambers within the ODS" system to produce a rapidly escalating spring rate under compressive load.

 

These same features allow the split liner system to shear omni-directionally within itself to provide improved performance against oblique impacts and angular acceleration demands.

 

There is no other helmet technology that can offer these combined energy management features.

 

6Ds" innovative ODS" system improves impact force management within the helmets interior environment.

 

Omni-Directional Suspension" ( ODS" ) technology is designed to protect your head over a broader range of energy transfer; especially angular acceleration in low and high velocity impacts, than traditional helmet designs. In testing, ODS" has shown to significantly reduce the energy transferred to the head.

 

This can reduce the likelihood of a concussion or brain injury over a traditional helmet.

Po Box 1064 Braeside, Melbourne, Vic, 3195     Tel:  03 - 9587 1466

© 2019 Steve Cramer Products

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