Material or article handling – Vertically swinging load support – Grab
Patent
1989-12-22
1991-02-19
Olszewski, Robert P.
Material or article handling
Vertically swinging load support
Grab
180 82, 280 528, 901 1, 901 47, B25J 500
Patent
active
049939122
ABSTRACT:
A stair climbing robot and method of operation is described. The robot includes a chassis having powered opposed front wheels and two pairs of rear wheels each pair being rotatably mounted on a beam at opposite ends thereof, and each beam being rotatably mounted on the chassis. A drive motor is provided for driving each pair of wheels in the same direction at a predetermined rotational velocity and a drive means is provided for simultaneously rotating the beams at a predetermined rotational velocity and in a predetermined direction. The method of operation to climb stairs includes the steps of activating the rotation of the beams in a forward direction while causing each pair of rear wheels to rotate in an opposite direction at the same rotational velocity. In this way, forward movement is achieved by action of the front wheels and the rotating beams and the rotational velocity of the rear wheels relative to the terrain will be zero.
REFERENCES:
patent: 2931449 (1960-04-01), King
patent: 3283839 (1965-03-01), Brown et al.
patent: 3299978 (1967-01-01), Spensler
patent: 3348518 (1967-10-01), Forsyth et al.
patent: 3580344 (1971-05-01), Floyd
patent: 4421189 (1983-12-01), Watkins et al.
patent: 4512588 (1985-04-01), Cox
patent: 4621562 (1986-11-01), Carr et al.
patent: 4636137 (1987-01-01), Lemelson
patent: 4709265 (1987-11-01), Silverman et al.
Kahl Leo M.
King Edward G.
Shackelord, Jr. Hilmer H.
Chamberlain MRC, Division of Duchossois Industries, Inc.
Olszewski Robert P.
Underwood Donald W.
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