초록 ▼

A vehicle such as a combine harvester or the like includes a main frame and a first and second undercarriages for supporting the main frame and individually having front and rear wheel assemblies and a track encircling the wheel assemblies. A suspension structure therefore includes a laterally space

A vehicle such as a combine harvester or the like includes a main frame and a first and second undercarriages for supporting the main frame and individually having front and rear wheel assemblies and a track encircling the wheel assemblies. A suspension structure therefore includes a laterally spaced apart pair of pivot joints adjacent the front wheel assemblies for pivotally connecting the undercarriages to the main frame, and a coupling assembly adjacent the rear wheel assemblies for centrally supporting the main frame on the undercarriages. A hydraulic motor powerably rotates each of the rear wheel assemblies and an inside support device is provided therefor that includes a stabilizing beam. The coupling assembly includes an equalizer bar having outer ends, and the stabilizing beam extends rearwardly beyond the driven rear wheel assemblies for connection to the outer ends. Also, an outside support device releasably clamps the rear wheel assemblies to the undercarriages.

대표청구항 ▼

In a vehicle of the type including a main frame having first and second ends, first and second undercarriages individually having a track roller frame, first and second wheel assemblies and a ground-engaging track encircling the wheel assemblies, a suspension structure for connecting the main frame

In a vehicle of the type including a main frame having first and second ends, first and second undercarriages individually having a track roller frame, first and second wheel assemblies and a ground-engaging track encircling the wheel assemblies, a suspension structure for connecting the main frame to the undercarriages, comprising: pivot means for pivotally connecting each of the undercarriages to the first end of the main frame and permitting pivotal movement thereof about a generally horizontal and transversely oriented axis, the supporting pivot means being located elevationally below the main frame and adjacent the second wheel assemblies; coupling means for centrally supporting the second end of the main frame on the undercarriages and preventing uncontrolled lateral spreading of the undercarriages, the coupling means including a stabilizing beam connected to each of the track roller frames, an equalizer bar centrally connected to the main frame and having opposite outer ends, and a coupling joint connecting each of the outer ends of the equalizer bar to the respective stabilizing beam, the coupling means being located adjacent the first wheel assemblies; and drive means for independently powerably rotating the first wheel assemblies including a motor mounted on each of the undercarriages away from the pivot means.