Sunday, February 24, 2013 - Digest Number 3519

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Digest #3519


Sun Feb 24, 2013 8:34 am (PST) . Posted by:

"-::eSpAcE9808::-" rienacom

Laporan asal Yanko

konsep Discolor Tyre rekaan Gao Fenglin dan Zhou Buyi. Bunga pada tayar dibuat menggunakan getah dengan dua warna berbeza. Apabila bunga sudah haus dan tiba masa untuk ditukar, lapisan getah bewarna akan kelihatan.

When your tyre shows orange, it's time to be replaced!

A tyre, which is made of rubber, doesn't last forever. Over time, the tread (the outer surface with the blocks cut in a pattern) wears down as the tyre rolls over the road. As the tread blocks wear down, the grooves or channels between them which help to drain water from under the tyre start to become shallower. This reduces grip on wet roads as water cannot be drained out fast enough and there is a danger of skidding, especially during cornering. Aquaplaning can also occur easily and this is a condition where the tyre 'rides' on top of the film of water and steering control is lost.

In most countries, including Malaysia, there are laws which make it illegal to use tyres that are worn down to less than 3 mm. There are instruments to measure tread depth but an easier way is to look for the Tread Wear Indicator (TWI) which appears when the tyre is worn down to an unsafe level. The TWI (which can be located by marking along the sidewall) is a small 'bridge' of rubber across the channels and when it is visible, then you should change the tyres. [Click here to see an image of the TWI]

Goodyear Malaysia also came up with an even simpler way many decades ago – the 20 sen test. Just insert a 20 sen coin into the groove and if you can see the word 'SEN' in full, it's time to replace the tyres. [Click here for an image of the test]

Gao Fenglin and Zhou Buyi have also proposed an interesting idea to determine when it's time to be replaced. Their concept, known as the Discolor Tyre adds a layer of bright orange rubber within the tyre tread. This layer is embedded at the level where the legal minimum depth is and like the TWI, it starts to appear only after a certain period of usage.

It's a clever simple idea which was entered in the 2012 iF Design Talents competition and hopefully, one of the tyre giants will pick up the idea.

Images: Gao Fenglin/Zhou Buyi via Yanko Design

'Discolor Tyre' Turns Orange When Tread is Gone
Luke Vandezande

Gimmickry drapes over the auto industry these days like Snuggies on impulsive Christmas shoppers. Sometimes they're useful, but in other cases, it's too much bull to bear.

Nissan marketed its 2013 Altima last year with an ad campaign suggesting how much easier life would be if there were a horn to toot just before you went too far with something. Of course, that was meant to promote the car's feature which does just that as you refill your tire pressure — useful, no? Enter the latest in idiot-proof tire technology.

It's called the "Discolor Tyre" and it does exactly what you've already guessed. As drivers wear their rubber to the nub, a differently-colored material shows through. You know it's time to change them once the color is showing.

The tires are estimated to last about 12,400 miles before the orange tread begins to show, and while most drivers will probably balk at the notion that this is necessary technology, it does have other merits. For example, having differently-colored core rubber makes finding leaks easier.

Colored Tiers Are Safer

The Discolor Tyre is a concept where the age and durability of the car tire is indicated and communicated through its color. Basically a tire is good for around 20,000 kilometers, and then its kinds worn out. With the Discolor Tyre, the tire takes on a bright orange hue once it is worn out and requires immediate replacement. It saves you the trouble of keeping a constant check and acts as a good warning system to keep your travels safe.

The Discolor Tyre is a 2012 iF Design Talents entry.

Designers: Gao Fenglin & Zhou Buyi

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