Motor grader with supplementary surface treatment attachment

Details Motor grader with supplementary surface treatment attachment Motor grader with supplementary surface treatment attachment

1984-08-13

1987-02-17

Stouffer, Richard T.

Earth working

Automatic power control

15 82, 172784, A01B 63118, E02F 385

Patent

active

046432612

ABSTRACT:
A rotary broom attachment for a motor grader, which has a mold board and structure to adjust the mold board for vertical elevation, side shift and rotary position about vertical and horizontal axes, is mounted behind and parallel to the mold board and has independent adjustment and control structure for positioning, and side shifting, if desired, of the broom relative to the mold board. Sensors are used to signal automatic shifting of the broom vertically or in side shift to avoid interference with the motor grader structure as well as obstacles in the path of the broom. The downward pressure of the broom is controlled by the proportional lift applied thereto by a hydraulic lift mechanism.

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