Bulldozer blade control

Details Bulldozer blade control Bulldozer blade control

1976-04-28

1978-02-21

Johnson, Richard J.

Earth working

Mounting for pushed tool at end of motor vehicle

Transversely mounted blade

E02F 376

Patent

active

040747697

ABSTRACT:
A bulldozer having a transverse blade and angling cylinders on opposed sides each cylinder having a rod connected to the bulldozer and a forwardly extensible cylinder operably connected to the sides of the blade for hydraulically angling the blade about a vertical axis. The hydraulic control includes a plurality of lines extending in an arch from adjacent the bottom of the front of the bulldozer to the back of the blade. The blade includes a channel-shaped shroud or guard extending from one side of the blade to the other which receives the lines. The lines then extend in opposite directions to the angle cylinders, eliminating the present requirement for hollow rod-trunnion mounted angle cylinders and permitting the use of solid rod piston cylinders.

REFERENCES:
patent: 2678508 (1954-05-01), Reuter
patent: 3157099 (1964-11-01), Ulrich
patent: 3539021 (1970-11-01), Campen
patent: 3645340 (1972-02-01), Frisbee
patent: 3920081 (1975-11-01), Terai

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