Patent ID: 7654065

Claim:
A mechanism for offsetting cutting units for a grass mowing machine, comprising: a lift arm for each cutting unit, each lift arm having a first leg pivotably mounted to the grass mowing machine on a first pivot axis, and a second leg mounted to the cutting unit on a second pivot axis; the first leg of each lift arm rotatable in a first direction on the first pivot axis to lower the cutting unit to a first mowing position offset to the left of the grass mowing machine, rotatable in a second direction on the first pivot axis to lower the cutting unit to a second mowing position offset to the right of the grass mowing machine, and rotatable to an intermediate position between the first and second mowing positions to raise the cutting unit in which the lift arm is generally vertical with the first pivot axis below the second pivot axis; each cutting unit being spaced from the other cutting units; and a mechanism interconnecting between the lift arms to rotate the lift arms in the same direction between the first and the second mowing positions and the intermediate position while in each position maintaining the same spacing of each cutting unit relative to the other cutting units.