Mower deck height adjustment mechanism

Details Mower deck height adjustment mechanism Mower deck height adjustment mechanism

1991-06-14

1992-09-01

Novosad, Stephen J.

Harvesters

Motorized harvester

Having motor on ground-supported carrier

A01D 3474

Patent

active

051428504

ABSTRACT:
A mechanism for selectively adjusting the cutting height of a mower deck. A pivotal lift handle has a laterally extending first end portion for engagement with both of the operator's hands, and the lift handle is coupled with the deck for shifting the deck vertically as the lift handle pivots. A support member having a plurality of laterally spaced and vertically offset steps engagable with the lift handle is slidably carried by the vehicle frame and is selectively shiftable laterally by the operator to support the lift handle at a plurality of heights corresponding to respective lateral positions of the support member. A pivot rod member is pivotally coupled with the vehicle and is coupled with the support member for guiding the support member through a laterally extending arc. The pivot member is engagable by the thumbs of the operator to cause lateral shifting of the support member as the operator grasps and lifts the lift handle. A plurality of indexing means corresponding with respective step means are carried by the frame and engage the support member for blocking the support member from shifting laterally when the lift handle is not being lifted by the operator.

REFERENCES:
patent: 2945338 (1960-07-01), Burrows et al.
patent: 3512344 (1968-05-01), Kortum
patent: 4006580 (1977-02-01), Kalleicher
patent: 4120136 (1978-10-01), Rose
patent: 4577455 (1986-03-01), Amano et al.
patent: 4733522 (1988-03-01), Johansson
patent: 4869057 (1989-09-01), Siegrist
Parts Catalog published by John Deere Horicon Works in Aug. 1990 entitled "STX30 and STX38 Lawn Tractors", pp. 85-2 and 85-3.
Parts Catalog published by John Deere Horicon Works in Oct. 1988 entitled "170, 175, 180 and 185 Lawn Tractors", pp. 85-2 and 85-3.
Parts Catalog published by John Deere Horicon Works in Sep. 1990 entitled "GX70 and GX75 Riders", pp. 85-1.
Parts Catalog published by John Deere Horicon Works in Sep. 1990 entitled "LX172, LX176, LX178 and LX186 Lawn Tractors", pp. 85-12 and 85-13.
Parts Catalog published by John Deere Horicon Works in Jan. 1989 entitled "RX63, RX73, RX75, SX75, RX95, SX95 Riding Mowers", pp. 85-1, 85-2 and 85-6.
"Preliminary Feasibility Study" containing information generated and provided by employees of The Dow Chemical Co. and Deere & Co., pp. 1-205 including 4 (four) sub-lettered pages, co-generated prior to Sep. 1, 1989 and cofidentially shared between Dow and Deere in the U.S.

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