Earth working – Mounting for pushed tool at end of motor vehicle – Transversely mounted blade
Patent
1979-04-02
1981-02-03
Johnson, Richard J.
Earth working
Mounting for pushed tool at end of motor vehicle
Transversely mounted blade
E02F 376
Patent
active
042483115
ABSTRACT:
A mechanism is disclosed for automatically laterally shifting a dozer blade to the exposed side of the tractor as the blade is angled to thereby keep the blade in front of the tractor and permit the use of a blade which is shorter than conventional angling blades. The lateral shift mechanism includes a slide plate support connected by a universal joint to the center bight portion of a C-shaped frame. The blade is mounted to the slide plate support by guide plates that permit the blade to slidably move along the longitudinal extent of the slide plate support when the blade is angled. A vertical mast support structure at the center of the bight portion of the frame mounts one end of extensible piston-cylinders used for angling, tilting, and pitching the slide plate support and blade. A slider bar is connected between the vertical mast and the blade for laterally shifting the blade when it is angled. One end of the slider bar is pivotally mounted to mounting structure on the mast and the other end is pivotally mounted to the back side of the blade through a cut-out portion in the slide plate support. The slider bar automatically forces the blade to move laterally on the slide plate support to the exposed side of the tractor when the blade is angled, and automatically centers the blade in front of the tractor when the blade is in the straight-ahead position. A piston-cylinder may be used instead of the slider bar when additional lateral movement of the blade is desired.
REFERENCES:
patent: 3002300 (1961-10-01), Turbyfill
patent: 3084461 (1963-04-01), Beckford
patent: 3529678 (1970-09-01), Teasdale
patent: 3670825 (1972-06-01), Asal
patent: 3991832 (1976-11-01), Cooper
Model 850B, Crawler Tractor Parts Catalog pp. 258-261, 6/1977, Case Co., Racine, Wisc.
Frisbee Claude M.
Horsch Rudolf
J. I. Case Company
Johnson Richard J.
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