Simplified flail feedout mechanism for a rotary mower

Cutlery – Cutting tools – With blade moving means

Patent

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Details

30347, A01D 5000

Patent

active

044584199

ABSTRACT:
A convenience improvement for rotary mowers, trimmers and edgers of vegetation that have a rotating body from which one or more flexible cord-like filamentous cutting blades or flails extend radially so that additional flail length can be fed from the device by merely bumping the rotating body on the ground. A pair of disc-shaped cams, preferably having square peripheries, are radially mounted on the centerline of the cutter, oriented at 45.degree. to each other. They interact with a cam follower so that when a first cam is moved axially out of contact with the follower, by bumping of the rotating body on the ground, the other moves axially into engagement with the follower after a 45.degree. rotation. Once the bump is over, the second cam moves axially in the reverse direction, disengaging the cam follower and allowing another 45.degree. of rotation before the first cam, repositioned by the axial movement comes into abutment contact with the cam follower. The 90.degree. rotation allows a predetermined length of flail to be fed out through the body of the device.

REFERENCES:
patent: 4203212 (1980-05-01), Proulx
patent: 4259782 (1981-04-01), Proulx
patent: 4274201 (1981-06-01), Oberg

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