Inusc Posted June 9, 2011 Posted June 9, 2011 Can this be true? My linkDon't believe anything on the Internet it is mostly b*llsh*t!But it is possible....
TNT1 Posted June 9, 2011 Posted June 9, 2011 One Kranium was smashed five times in a row and still passed the British Standard (EN 1078) test.
Minion Posted June 9, 2011 Posted June 9, 2011 More infor at the original link:http://www.anirudharao.com/index.php?/project/kranium/
MTBer wannabee Posted June 9, 2011 Posted June 9, 2011 Is it really cardboard though....that is the question. (check out the comments after the article, man you would swear these guys were from the hub)
patches Posted June 9, 2011 Posted June 9, 2011 reminds me of these hippy-helmets http://www.treehugger.com/topup3.jpg and of course it's used in conjunction with an ebike: http://www.treehugger.com/topup2.jpg
Taps Posted June 9, 2011 Posted June 9, 2011 It's cool! (literally and figuratively). Makes sense to me, many of today's helmets appear to be designed by guys with too much time on their hands trying to do something different with the same limited materials with an object that has limited permutations.Imagine this one, if it gets muddy, chuck it and get another. Should be dirt cheap.
gummibear Posted June 9, 2011 Posted June 9, 2011 What happens when you sweat?Surely the cardboard gets soggy.
brad890 Posted June 9, 2011 Posted June 9, 2011 i've just got one quick question for the designer, what if it rains or you do an intense ride and at the end its all swaety/wet and mushy? how is that going to protect ones head?
brad890 Posted June 9, 2011 Posted June 9, 2011 What happens when you sweat?Surely the cardboard gets soggy. lol dito, you beat me to it
Caerus Posted June 9, 2011 Posted June 9, 2011 you will find its not for your everyday commutin, more like a tourist that wants a bike for a few hours to rent and a cheap helmet, which is more then likely coated in plastic (think Tetra pack) so wont get soggy. You will also find that the design of the helmet, have you seen the furniture they make from cardboard, is such that it can withstand a force of the impact, its not for racing snakes or mtbing.
grb285 Posted June 9, 2011 Posted June 9, 2011 I don't agree with their concept. It might absorb 40% more impact in a lab, but this helmet looks more like the way that rock climbing helmets are designed. There's a space of air between the head and the shell. Cycling helmets are meant to break apart on impact. my 2c
Minion Posted June 9, 2011 Posted June 9, 2011 Cycling helmets are meant to break apart on impact.in order to absorb the energy of the impact. This helmet absorbs the energy by breaking internally. The lab test they used is the same lab test that other cycling helmets have to pass in order to be certified. I'd wager that a lightweight racing helmet (a compromise between weight and strength) passes this test by a much smaller margin than this and other commuter helmets.
grb285 Posted June 9, 2011 Posted June 9, 2011 in order to absorb the energy of the impact. This helmet absorbs the energy by breaking internally. The lab test they used is the same lab test that other cycling helmets have to pass in order to be certified. I'd wager that a lightweight racing helmet (a compromise between weight and strength) passes this test by a much smaller margin than this and other commuter helmets.True. Personally I'd prefer to have poly around my noggin though. It's a great idea nonetheless.
Skylark Posted June 9, 2011 Posted June 9, 2011 (edited) I think the main point of this helmet is the fact it has crumple ability - so it absorbs more energy than a poly helmet ever could - rather like a car crumple zone. Poly helmets distribute the energy over your head surface rather than absorbing it , if the blow becomes very extreme only then do they start absorbing some energy by cracking but that's not very much and its a little to late by then. You guys have limited reading ability? the article mentions the water resistance and your concerns with soggy helmet syndrome : "What about rains and sweat? No problem. Surabhi’s helmets mix the cardboard with a “waterproof acrylic compound” which makes them just as rain-resistant as the helmet you have now." I'd imagine it was designed with standard wood pulp based corrugated cardboard but the cardboard can be made of other materials incl polymers etc Edited June 9, 2011 by SkyLark
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