Leveling apparatus for a cutting head of a mower

Harvesters – Gang – Rotating cutting reel

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Details

56 152, 56249, A01D 5704, A01D 3444

Patent

active

059706902

ABSTRACT:
A leveling apparatus for a reel type cutting head for use on a gang mower. The leveling apparatus includes a linkage which attaches at an inboard end to the frame of the mower and at an outboard end of a control arm. The control arm in turn attaches to the cutting head to pivot the cutting head about a horizontal axis. As the mower is lowered to engage the ground, the linkage pivots the cutting head to maintain the cutting head level as the cutting head is lowered to engage the ground. In a particular embodiment, the linkage comprises a parallel linkage having an upper and a lower link and inboard and outboard control arms which are arranged to form a parallelogram whose shape changes as the mower is raised and lowered. The parallel linkage connects to the cutting head to pivot the cutting head about a horizontal axis and maintains the cutting head substantially level as the cutting head is raised and lowered. The upper and lower links are generally parallel, and the inward and outward control arms are also generally parallel. Further, the inboard and outboard control arms remained in a generally vertical orientation, while the upper and lower links pivot in a generally vertical direction.

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