Circle structure of motor grader

Details Circle structure of motor grader Circle structure of motor grader

2005-02-08

2005-02-08

Will, Thomas B. (Department: 3671)

Earth working

Scraper between front and rear ground supports of vehicle

C172S796000

Reexamination Certificate

active

06851485

ABSTRACT:
A circle structure of a motor grader excellent in durability at low maintenance cost. For this purpose, the circle structure includes a drawbar (105), at least one guide shoe (213) attached to the drawbar, an integrated ring-shaped circle gear (211) rotatably supported by the guide shoe, a plurality of circle gear mounting bolts (215) placed at equal pitches on a mounting pitch circle of the circle gear, and a circle (104) which is mounted to the circle gear by the circle gear mounting bolts and rotatable with respect to the drawbar.

REFERENCES:
patent: 3712384 (1973-01-01), Fisher
patent: 3989112 (1976-11-01), Cole et al.
patent: 4004641 (1977-01-01), Hendrickson
patent: 4084644 (1978-04-01), Cole et al.
patent: 4099577 (1978-07-01), Beckham et al.
patent: 4206818 (1980-06-01), Beckham et al.
patent: 5667020 (1997-09-01), Palmer et al.

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