Self-propelled vehicle

Details Self-propelled vehicle Self-propelled vehicle

1990-12-07

1993-05-25

Focarino, Margaret A.

Motor vehicles

With means for controlling operation responsive to...

Having controlling means adapted to interact with stationary...

180212, B62D 6106

Patent

active

052131769

ABSTRACT:
A self-propelled vehicle capable of all directional movement over a floor surface and adapted to be guided along a path such as a semiconductor processing line. The vehicle is provided with at least three wheels having a construction enabling rotational movement in a rotational plane of the wheel and in a direction orthogonal thereto. When at least four wheels are provided, the vehicle is provided with a suspension mechanism for mounting the wheels and a mechanism for maintaining a parallel relationship of the suspension mechanism and a chassis of the vehicle so that slanting of the vehicle body during travel is avoided. Also, the vehicle is provided with a vibration preventing base interposed between the vehicle and a substance mounting base for controlling the proper vibration frequency of the vibration presenting base to be lower than 1/.sqroot.2 of the proper vibration frequency of the vehicle.

REFERENCES:
patent: 4223753 (1980-09-01), Bradbury
patent: 4237990 (1980-12-01), La
patent: 4486694 (1984-12-01), Ohba et al.
patent: 4576246 (1986-03-01), Stieber et al.
patent: 4657104 (1987-04-01), Holland
patent: 4715460 (1987-12-01), Smith

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