A snowmobile is provided with airbag systems including airbag bodies expanding from a portion near a steering handle bar respectively, one of the airbag bodies expanding rearward of a handle bar and outward of both the ends of the handle bar, and the other airbag body expanding toward a front side of...http://www.google.com.tw/patents/US7530594?utm_source=gb-gplus-share專利 US7530594 - Snowmobile with airbag system