device for wheels of vehicles or machines intended for rough terrain, for example, the forestry, the establishment of the grip is required for the travel of the vehicle or the machine.if desired, can increase.

摘要

A cross-country vehicle includes a wheel provided with an outer layer of resilient material having a plurality of circumferentially disposed protruding teeth. A track is provided about the wheel and has a plurality of transverse bars connected to one another and separated by gaps which engage the protruding teeth. Studs moveably mounted in radial holes through at least some of the teeth of the wheel project downwardly to extend through the gaps and into engagement with the ground.