Land vehicles – Wheeled – Attachment
Patent
1976-06-04
1977-10-18
Song, Robert R.
Land vehicles
Wheeled
Attachment
182 90, B60R 300
Patent
active
040542980
ABSTRACT:
A step member for attachment to the frame of a tractor. The step member includes a pair of flexible cables each of which has a coupling member at the lower end thereof that extends through an enlarged aperture in a foot supporting portion and serves to connect the latter to the cables so as to permit limited movement of the foot supporting portion relative to the coupling members. The upper ends of the cables are pivotally connected to the frame in a manner that allows the foot supporting portion to swing in a plane parallel to the longitudinal axis of the tractor when the foot supporting portion encounters an obstacle.
REFERENCES:
patent: 199967 (1878-02-01), Elton
patent: 2365012 (1944-12-01), Schneider
patent: 3887216 (1975-06-01), Perry
patent: 3967695 (1976-07-01), Waddell
Biskup Edward J.
General Motors Corporation
Song Robert R.
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