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Four wheel drive, four wheel steering vehicle

  • US 6,659,215 B1
  • Filed: 03/29/2001
  • Issued: 12/09/2003
  • Est. Priority Date: 09/01/1998
  • Status: Expired due to Fees
First Claim
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1. A vehicle principally for use in rugged terrain, comprising at least one beam or frame (6, 7) extending centrally in the vehicle'"'"'s longitudinal direction, where the beam or frame (6, 7) is provided with a first and a second rotatable device (3, 5), each of which devices (3, 5) can rotate about an axis perpendicular to the vehicle'"'"'s longitudinal axis (16), and that at least one of the rotatable devices (3, 5) is rotatably mounted relative to the beam or frame (6, 7) about the vehicle'"'"'s longitudinal axis (16) and that on each of the rotatable devices (3, 5) there are mounted rigid differential axles (2, 4), the differential axles (2, 4) are provided with synchronised drive devices (23) driven by a power source and the vehicle is provided with one or more steering synchronizing devices which rotate the differential axles (2, 4) on the rotatable devices (3, 5) in a relatively opposing relationship, and that the vehicle is provided with a steering device (13, 9) for steering the vehicle, characterized in that the synchronised drive devices (23) are T-drives aligned longitudinally with an interconnecting axle (24) and above a center of said rotatable devices.

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