Method and apparatus for supporting a turf mower cutting unit

Details Method and apparatus for supporting a turf mower cutting unit Method and apparatus for supporting a turf mower cutting unit

1995-02-22

1997-05-13

Melius, Terry Lee

Harvesters

Gang

Rotating cutting reel

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.

Affiliated with

Also associated with

Rating

Method and apparatus for supporting a turf mower cutting unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for supporting a turf mower cutting unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for supporting a turf mower cutting unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1378100