Angle-tilt-pitch mechanism for dozer blade

Details Angle-tilt-pitch mechanism for dozer blade Angle-tilt-pitch mechanism for dozer blade

1990-02-20

1991-04-30

Corbin, David H.

Earth working

Mounting for pushed tool at end of motor vehicle

Transversely mounted blade

172831, E02F 376

Patent

active

050109618

ABSTRACT:
An improved mechanism for connecting a ground-engaging blade to the frame of a vehicle is disclosed which allows the blade to tilt, pitch or angle relative to the frame. The disclosed arrangement includes a pair of hydraulic cylinders which control the tilting or pitching of the blade and a single hydraulic cylinder which controls the angling of the blade. The cylinders are all pivotally connected to an intermediate member which is pinned to the blade and guided through an arc on the frame by a guide bar formed on the frame. A single hydraulic circuit is disclosed which powers the pair of hydraulic cylinders to pitch or tilt the blade relative to the frame. The resulting arrangement is both simplified and relatively stable when compared to prior art structures.

REFERENCES:
patent: 2943407 (1960-07-01), Long
patent: 3529678 (1970-09-01), Teasdale
patent: 4201268 (1980-05-01), Frisbee
patent: 4281721 (1981-08-01), Beales
patent: 4405019 (1983-09-01), Frisbee
patent: 4424871 (1984-01-01), Stickney
patent: 4562891 (1986-01-01), Ranner
patent: 4848483 (1989-07-01), Heiple
patent: 4893683 (1990-01-01), Horsch et al.

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