Swing lock means for an hydraulic excavator

Details Swing lock means for an hydraulic excavator Swing lock means for an hydraulic excavator

1975-01-23

1976-08-03

Wood, Jr., M. H.

Motor vehicles

Steering by driving

Controlled from rotatably mounted superstructure

180 77S, 180 89R, B62D 2706

Patent

active

039723780

ABSTRACT:
An excavator comprises an upper unit rotatably mounted on a tracked undercarriage. A swing gear mechanism is operatively connected between the upper unit and the undercarriage to selectively rotate the upper unit. An operator-controlled locking mechanism is positioned interiorly of the swing gear mechanism to selectively lock the upper unit relative to the undercarriage.

REFERENCES:
patent: 1836056 (1931-12-01), Wright
patent: 1940690 (1933-12-01), Moore
patent: 2281288 (1942-04-01), Hettelsater
patent: 3347558 (1967-10-01), Grims
patent: 3568778 (1971-03-01), Swisher

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