Abstract A tractor provided with three sets of twin pneumatic tires mounted on wheels on each side of the tractor, a track being received around three, in one embodiment and two in the other embodiment, pneumatic tires. In each embodiment only the rearmost set of wheels is powered. The track is a belt composed of a flexible material which in the first embodiment has a plurality of traction members secured thereto by bolts extending through the belt which are secured on the inner side by a strip opposite the traction members, such strip having a V-shaped portion which is received between the twin tires to retain the track in place. Each traction member includes a part flush to the belt through which the bolts are received, a further part extending from the first part outwardly and normally to the belt and a ground-engaging part extending from the second part in a direction parallel to the belt. The traction member in cross-section thus may appear as an inverted U with outwardly extending flanges or as a "C" with square sides or as an inverted "T" or the like whereby, in other embodiments, the ground engaging portion of the traction member has at least one flange extending away from the second part of the traction member. In operation, the traction members tend to become biased when under the tire wherein they first meet the ground whereby their ground engaging parts converge relative to the ground towards the relative direction of movement of the track.
A vehicle included in the group which comprises tractors, motorcars, soil cultivating machines, trucks, wagons and the like, wherein the vehicle comprises a frame and ground engaging wheels mounted on said frame, a track arranged around at least two of said ground engaging wheels, said track comprising a continuous belt of flexible material, said belt being provided with profiles which include parts extending substantially parallel to the belt at the circumference of said belt and further parts spaced at a distance therefrom, said parts and further parts connected by other parts extending substantially normally to said belt whereby said profiles have a cross-section which comprises two U-shaped cross-sections on their sides back-to-back whereby said cross-sections appear to have an I-shaped configuration.
Claim 2
Dependent Claim
121 words
A vehicle included in the group which comprises tractors, motorcars, soil cultivating machines, trucks, wagons and the like, wherein the vehicle comprises a frame and ground engaging wheels mounted on said frame, a track arranged around at least two of said ground engaging wheels, said track comprising a continuous belt of flexible material, said belt being provided with profiles which include parts extending substantially parallel to the belt at the circumference of said belt and further parts spaced at a distance therefrom, said parts and further parts connected by other parts extending substantially normally to said belt whereby said profiles have a cross-section which comprises two U-shaped cross-sections on their sides back-to-back whereby said cross-sections appear to have an I-shaped configuration.