초록 ▼

A vehicle having drive wheels subject to significant vertical movement is equipped with an endless track system that includes rollers mounted on the main frame ahead of the drive wheels, and track belts extending around the rollers and the main drive wheels. The roller axis is considerably displaced

A vehicle having drive wheels subject to significant vertical movement is equipped with an endless track system that includes rollers mounted on the main frame ahead of the drive wheels, and track belts extending around the rollers and the main drive wheels. The roller axis is considerably displaced from the pivot axis of the beams carrying the drive wheels, and means are provided for accommodating the variations in distance between the pivot axes as the drive wheels change position vertically with respect to the main frame.

대표청구항 ▼

In combination with a vehicle having a frame and at least one wheel supporting member mounted for vertical movement with respect to said frame, and having a drive wheel mounted on said wheel-supporting, an endless track system comprising: a positioning roller rotatably mounted on said frame for rota

In combination with a vehicle having a frame and at least one wheel supporting member mounted for vertical movement with respect to said frame, and having a drive wheel mounted on said wheel-supporting, an endless track system comprising: a positioning roller rotatably mounted on said frame for rotation on an axis parallel to the axis of said drive wheel; endless track means engaging the periphery of said drive wheel and said roller providing an upper and a lower course for said endless track means; track-supporting means disposed above said lower course and mounted on said frame for vertical movement with respect thereto; load-transfer means interconnecting said wheel-supporting member and said track-supporting means for inducing vertical movement of said track-supporting means in response to a corresponding direction of movement of said wheel-supporting member; and a bracket slidably mounted on said frame, said bracket having bearing means supporting said roller, said track-supporting means also being pivotally supported by said bearing means.