Patent ID: 7976064
Filing Date: 2011-07-12
Classification: B62D

Abstract:
1. A device for facilitating movement of a vehicle across the ground, including a surface for contacting the ground, the surface being mounted on a body, and a connector for attaching the body to an underside of the vehicle, wherein: a. the surface is movable independently of movement of the vehicle in at least a reverse direction relative to the vehicle's direction of movement, b. friction-reducing components are provided between the surface and the body, c. the friction-reducing components being arranged to be able to: d. the body has at least one guide channel, e. the surface has hooks for co-operating with the guide channel, each hook including a pair of rollers, at least one of the pair of rollers having a rotational axis extending from the ground-contacting surface in an at least substantially perpendicular direction.