Kobe, Japan – Sumitomo Rubber Industries Ltd. has developed two tire technologies that offer extended mobility --- a prototype airless tire using resin spokes in place of a pneumatic air chamber and a tire sealant that prevents air loss in the event of a puncture.
Sumitomo is showing prototypes of both technologies at the 2015 Tokyo Motor Show, which opened to the public on 30 Oct.
The “Gyroblade” airless tire/wheel features a tire tread affixed to the circumference of a tire body is attached to the metal wheel hub by special resin spokes. SRI claims this advancement – which bears a resemblance to the Michelin Tweel and similar airless tire designs -- not only removes safety concerns arising from underinflated tires but also contributes to the environment by eliminating the need for spare tires.
The special resin spokes can be produced a various colors, allowing the tire/wheel concept to make a fashion statement.
SRI did not disclose what type of resin is used for the spokes, what the product’s weight-bearing limit is, the speed range in which it’s designed to operate, nor how close it might be to being commercially viable.