Method and apparatus for supporting a turf mower cutting unit

Harvesters – Gang – Rotating cutting reel

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56249, 56294, A01D 3444

Patent

active

056281692

ABSTRACT:
One aspect of the invention relates to a cutting unit joint (22) which can be located between a lift arm (18) and a cutting unit (20). Cutting unit joint (22) includes a four-bar linkage preferably including pairs of pivoting links (46 and 48) which create a "virtual pull point" at any desired location. With regard to one embodiment, a cutting unit (20), the virtual pull point is even located below ground, when the cutting unit (20) is generally level. This configuration reduces or eliminates cutting unit "bobbing." In another embodiment, in connection with a cutting unit (20'), the virtual pull point is located roughly at the centerline of the reel, to maintain a good "seal" between the cutting unit (20') and a lift arm supported grass basket (52'). Another aspect of the present invention relates to a self-contained damper (76) connected to lift arm (18), the damper (76) resisting upward movement at a velocity or frequency consistent with cutting unit "bobbing."

REFERENCES:
patent: 1014663 (1912-01-01), Mustin
patent: 1069736 (1913-08-01), Shorman
patent: 1164305 (1915-12-01), Nilson
patent: 2335054 (1943-07-01), Godwin
patent: 2724227 (1955-06-01), Godwin
patent: 2763977 (1956-09-01), Spencer, Jr. et al.
patent: 3063226 (1962-11-01), Pfauser
patent: 3077065 (1963-02-01), Samways et al.
patent: 3608288 (1971-09-01), Heth et al.
patent: 3624988 (1971-12-01), Aldred
patent: 3646738 (1972-03-01), Tiura
patent: 3665689 (1972-05-01), Richardson
patent: 3795094 (1974-03-01), Mollen et al.
patent: 3910019 (1975-10-01), Schlittler
patent: 4026093 (1977-05-01), Knusting
patent: 4162606 (1979-07-01), Weichel
patent: 4203277 (1980-05-01), Kaetzel
patent: 4218865 (1980-08-01), Chaumont et al.
patent: 4286423 (1981-09-01), Caldwell et al.
patent: 4301643 (1981-11-01), Bailey et al.
patent: 4343138 (1982-08-01), Neuerburg
patent: 4353422 (1982-10-01), Benett, Jr.
patent: 4438619 (1984-03-01), Heim et al.
patent: 4691505 (1987-09-01), Browne
patent: 4747255 (1988-05-01), Roden
patent: 4864805 (1989-09-01), Hager
patent: 4907400 (1990-03-01), Roden
patent: 4926621 (1990-05-01), Torras
patent: 4972661 (1990-11-01), Rodan
patent: 4998948 (1991-03-01), Osterling
patent: 5042236 (1991-08-01), Lamusga et al.
patent: 5193330 (1993-03-01), Nusser
patent: 5293729 (1994-03-01), Curry et al.
patent: 5297378 (1994-03-01), Smith
patent: 5343680 (1994-09-01), Reichen et al.
Kongskilde, "Germinator, Seedbed Cultivator", 1985, pp. 1-6.
Toro brochure entitled "Reelmaster.RTM. 5100-D with Automated Control Electronics,".COPYRGT. 1992.
Section 8.11, entitled "Free-Link Operation of Three-Point Hitches," pp. 185,186, Principles of Farm Machinery, third edition, R. A. Kepner et al, AVI Publishing Company, Inc.,.COPYRGT. 1978.

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