US 6,718,747 B2 · Rotary cutter parking stand

Abstract

A towed rotary cutter includes a self-leveling hitch equipped with a parking stand mounted in a centered position beneath the hitch. Through the operation of the leveling links, the hydraulic lift cylinder that is used for raising and lowering the ground wheels of the cutter relative to the cutter frame is also used to manipulate the hitch, once the parking stand is placed in its park position, so as to remove the weight of the hitch from the tractor drawbar when unhitching the tractor from the rotary cutter, or to place the hitch clevis at the correct height for connecting it to the tractor drawbar when hitching the cutter to the tractor. In a first embodiment, the parking stand is constructed for use with a hitch having a feature for automatically maintaining the clevis in a horizontal attitude. In a second embodiment, the parking stand includes a clevis support which is oriented for supporting the clevis in a horizontal attitude when the parking stand is in its park position, but is moved so as to permit free pivotal movement of the clevis when the parking stand is in its stored position.

Claims4

Dependent claims

In combination with a towed rotary cutter having a frame supported at its rear on at least one ground wheel mounted to an axle for being selectively swung vertically, through operation of an extensible and retractable hydraulic cylinder, so as to adjust the cutter frame to selected heights between, and including, fully raised and lowered positions, a leveling arrangement extending between the axle and a hitch mounted on the front of the cutter frame for maintaining the hitch in a level attitude as the wheel is swung vertically, a parking stand arrangement comprising:

only one parking stand member having a first end pivotally mounted to said hitch at a first location about which said parking stand member is pivotable between a fore-and-aft extending, raised stored position beneath an uppermost structure of said hitch and a vertically extending park position;
and a retaining arrangement including a first hole arrangement in said hitch approximately vertically below said first location;
a second hole arrangement in said hitch spaced forward of said first hole arrangement at a height which is just below said parking stand member when the latter is in said stored position;
and a retaining pin being selectively received in said first and second hole arrangements for selectively securing said parking stand member in its stored and park positions.

1 more element

first and second parking stand members;
said second parking stand member having a first end coupled to said hitch by said clevis mounting pin and having a second end pivotally attached to one end of said first parking stand member;
a coupling arrangement associated with said first parking stand member and said hitch for selectively securing said first parking stand member to said hitch in a park position, wherein said first parking stand member is substantially vertical, and a stored position, wherein said first parking stand member is folded to extend alongside said second parking stand member and has a location adjacent said one end of said first parking stand member.

Dependencies are inferred from the claim text.

Rotary cutter parking stand

Life of this patent

Rotary cutter parking stand

Life of this patent

Abstract

Claims4