http://www.anirudharao.com/index.php?/project/kranium/
Quite neat especially the custom fitting fit after a head scan
more
http://www.wired.com/gadgetlab/2011/06/cardboard-bike-helmet-better-than-plastic/
Bike Forum
Cardboard Helmet
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Posted 11 months ago #
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That's good. I'm beginning to think that this one I made out of bog roll isn't so good. Especially when it's been raining.
Posted 11 months ago # -
paper cuts. ow.
Posted 11 months ago # -
Nice design, use of cardboard has been tried and tested before. It does offer high energy absorption and better controlled deceleration than EPS, but the properties of it over time are questionable, and from the work I have seen before, the thickness of the outer shell tended to be thicker to provide better support to the cardboard matrix and when taking the thickness of this outer layer into account it decreased the protection due to having lower flexibility.
Maybe not as relevant to cycling but it offers very poor intrusion / penetration protection, so your head would be more prown to injuries from things penetrating through. This is more applicable in aerospace though.
Posted 11 months ago # -
That would be right manky after a couple of sweaty rides.
Posted 11 months ago # -
Right I am off home to cut two holes in the box of Krave I finished at breakfast & save myself a fortune.
Posted 11 months ago # -
It makes some good points. Our normal helmets are pretty crap and do tend to leave us feeling more safe than we are.
I used to work for a company that made them and the test they needed to pass the standards was laughable, it in no way represented a normal crash.
Posted 11 months ago # -
I used to work for a company that made them and the test they needed to pass the standards was laughable, it in no way represented a normal crash
yer rubbish standards...they are everywhere..
bit like the BS toilet flush test...toilets must be able to flush away two ping pong balls.... 'realistic'
Japanese on the other mould realistic turds from soya etc and use those for their flush tests
Posted 11 months ago #
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