Motor vehicles – Special wheel base – With means for changing number of supporting wheels – or for...
Patent
1987-10-13
1989-05-30
Rice, Kenneth R.
Motor vehicles
Special wheel base
With means for changing number of supporting wheels, or for...
180906, 180907, 2803041, B62D 6112, B62K 1300
Patent
active
048344095
ABSTRACT:
A personal mobility vehicle includes a main frame unit with front and back ends, both with wheels thereon, a steerable front wheel, an operator's seat and vehicle controls. A pair of spaced rear wheels are mounted at the back end of the vehicle and include moveably mounted axles supporting the rear wheels and connected to arms with mechanisms for selectively angularly moving the axles outwardly and inwardly of the main frame unit to vary wheel base and wheel track. A motor is connected to the wheel support structure for remotely varying the wheel base and wheel track. A separate drive motor is operatively connected to the wheels for movement of the vehicle.
REFERENCES:
patent: 3502165 (1970-03-01), Matsukata
patent: 4570739 (1986-02-01), Kramer
Brochure of Everest and Jennings entitled "Mabie, Premier 3 Wheeler".
1985 Product Catalog from Alpha Unlimited, with Photograph labeled Prior Art Device "A".
Brochure of Ortho Kinetics, Inc. entitled "The Bravo Model 434", with photograph labeled Prior Art Device B.
Brochure of Ortho Kinetics, Inc. entitled "Colt".
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