Drivable, steerable platform for lawnmower and the like
Omnidirectional drive system
Control apparatus for omnidirectional, polar coordinated platform for lawnmower and the like Patent #: 4533998
ApplicationNo. 06/770729 filed on 08/29/1985
US Classes:180/7.1, SPECIAL DRIVING DEVICE180/252, HAVING AT LEAST ONE WHEEL BOTH DRIVEN AND STEERABLE180/255, Pivotable portion of means has additional structure of gearlike nature in driving engagement with corresponding structure on wheel74/665C, Nonparallel74/665NSpur
ExaminersPrimary: Love, John J.
Assistant: Diederiks, Everett G. Jr.
Attorney, Agent or Firm
International ClassesB62D 57/00 (20060101)
B62D 7/00 (20060101)
B62D 7/02 (20060101)
AbstractThis invention comprises a driveable, steerable platform for industrial, domestic, entertainment and related uses. A frame member travels on a plurality of wheels which can be turned 360° to steer the platform in a desired direction. Separate endless drive means in the form of gear-driven concentric shafts drive and steer the wheels. The platform travels substantially parallel to the terrain traversed. The entire platform may be housed in a hollow sphere to cause the sphere to selectively roll, providing the platform the ability to move about on radically uneven terrain including the ability to climb steps of height equal to approximately one-half the sphere's diameter. The wheels engage the inner surface of the rolling sphere to drive and steer the rolling sphere.