Simple flail feedout mechanism for a rotary mower

Details Simple flail feedout mechanism for a rotary mower Simple flail feedout mechanism for a rotary mower

1989-07-07

1990-10-02

Watts, Douglas D.

Cutlery

Cutting tools

With blade moving means

30347, B26B 700

Patent

active

049599046

ABSTRACT:
An improvement for flail cutter heads so that additional flail can be fed from the device by merely bumping its rotating body on the ground. A pair of disc-shaped cams are readily mounted on the centerline of the body on the opposite radial sides of a spool around which the flails are wound. The disc-shaped cams interact with facing cam followers on the inner surfaces of spool covers forming the major portions of the body so that when the lower cam is moved axially out of contact with the lower follower, by bouncing a downwardly biased, axially mounted bumper member on the ground, the other has already moved axially upwardly in position for engagement with the upper follower. This engagement occurs after a predetermined rotation of the spool. Once the bounce is over, the upper cam moves axially in the reverse direction, disengaging the upper cam follower after the lower cam is in position the contact the lower cam followers after another predetermined of rotation. The resulting two stage relative rotation of the spool allows predetermined lengths of flail to be fed out through the body of the head.

REFERENCES:
patent: 4672798 (1987-06-01), Ota

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