Offset walking spud

Details Offset walking spud Offset walking spud

1980-07-22

1982-06-15

Pekar, John A.

Motor vehicles

Special driving device

Stepper

180 8E, B62D 5702

Patent

active

043345875

ABSTRACT:
An improved walking mechanism for a drag line excavator. The drag line excavator has a tub intended to rest upon ground with a house and boom rotatable on the tub. Movement of the excavator is accomplished by large spuds at each side of the house each carrying an elongate shoe for ground contact when the spud is lowered by a crank to raise a part of the machine off the ground and drag the rest over the ground in incremental "steps" to move the excavator. The present invention provides a structure allowing the machine to pick up a greater proportion of the excavator weight relative to the weight to be dragged over the ground without changes in the walking mechanism power and drive and without changes affecting the location of the walking center of gravity or the working center of gravity of the excavator.

REFERENCES:
patent: 1577588 (1926-03-01), Phillips
patent: 2290118 (1942-07-01), Page

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