Motor vehicles – Special wheel base – Having only three wheels
Patent
1980-07-17
1982-09-28
Bertsch, Richard A.
Motor vehicles
Special wheel base
Having only three wheels
280112A, 280267, B62D 902, B62D 6106, B62K 508
Patent
active
043514103
ABSTRACT:
A wheeled vehicle includes a vehicle frame having at least one wheel at one end of the frame and a hinged parallelogram frame mounted on the other end of the vehicle frame and having a pair of spaced wheels mounted on opposite sides thereof. The parallelogram frame will pivot laterally in first or second opposite lateral directions when the frame leans laterally away from a position of equilibrium in the first or second lateral direction. A sensing device is connected to the vehicle frame and a power source is connected to the sensing means and parallelogram frame whereby initial leaning movement of the parallelogram frame in one direction (caused by conditions of unequilibrium) will cause the sensing device and power source to pivot the parallelogram frame in the opposite direction thereby to laterally pivot the vehicle frame to a position of equilibrium. The sensing device may be a lever pivotally connected to the vehicle frame and the power source may include a pair of extensible and retractable cylinder units for connecting opposite ends of the sensor lever to opposite sides of the parallelogram frame.
REFERENCES:
patent: 2684254 (1954-07-01), Goss
patent: 3746118 (1973-07-01), Altorfer
patent: 3820809 (1974-06-01), Blonar
patent: 3958814 (1976-05-01), Smith
patent: 4020914 (1977-05-01), Trautwein
patent: 4072325 (1978-02-01), Bright et al.
Bertsch Richard A.
McGiehan Donn
Townsend Engineering Company
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