Mower deck lift handle mechanism

Details Mower deck lift handle mechanism Mower deck lift handle mechanism

1991-06-14

1993-02-23

Melius, Terry Lee

Harvesters

Motorized harvester

Having motor on ground-supported carrier

56 149, A01D 3474

Patent

active

051879255

ABSTRACT:
A mechanism for selectively adjusting the cutting height of a mower deck carried by a vehicle having a frame. A laterally extending lift handle formed of a plastic material is engagable by the hand of the operator, and is pivotally coupled with the vehicle for pivoting motion about a generally horizontal axis as the operator lifts the first end portion. A pair of laterally spaced and generally spherical sockets are formed integral with the lift handle between the lift handle's first and second end portions. Each socket pivotally supports a ball member. Link members are provided having first portions coupled with respective ball members, and second portions pivotally coupled with the mower deck for vertically shifting the deck relative to the vehicle as the lift handle pivots. A four bar linkage is coupled between the vehicle and the deck for maintaining the deck in a generally level position throughout the deck's vertical range of motion.

REFERENCES:
patent: 4120136 (1978-10-01), Rose
patent: 4577455 (1986-03-01), Amano et al.
patent: 4733522 (1988-03-01), Johansson
patent: 4809489 (1989-03-01), Johansson
patent: 4869057 (1989-09-01), Siegrist
patent: 4882898 (1989-11-01), Samejima et al.
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", p. 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 80-6.
"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 1 Sep. 1989 and confidentially shared between Dow and Deere in the U.S.

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