Crawler vehicle transmission-steering assembly
AssigneeNew Holland North America, Inc.
InventorAntimo Massimiliano Andriani
Life of this patent
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Abstract
A transmission-steering assembly for a crawler vehicle has a propeller shaft and two output shafts extending along a transverse axis of the vehicle. The two output shafts drive respective tracks of the vehicle, and are driven by the propeller shaft via the interposition of respective identical reduction units. A power-steering device is interposed between the output shafts to vary the relative angular speed of the output shafts. The assembly has a single service brake for exerting, in use, a braking action on the propeller shaft, and a single auxiliary parking brake associated with the steering device.
Claims11
In a transmission-steering assembly for a crawler vehicle having two lateral tracks;
- a transmission axis;
- a propeller shaft extending along said transmission axis;
- two output shafts extending along said transmission axis and each for driving a respective said lateral track;
- two reduction units, each interposed between said propeller shaft and a respective said output shaft;
- a power steering apparatus interposed between said output shafts to vary the relative angular speed of the output shafts;
- and a braking device for braking said output shafts, the improvement comprising:
- said braking device including a single service brake exerting, in use, a braking action on said propeller shaft.
Dependencies are inferred from the claim text.