Harvesters – Motorized harvester – With condition-responsive operation
Patent
1994-12-12
1995-12-05
Bagnell, David J.
Harvesters
Motorized harvester
With condition-responsive operation
56 127, 56DIG10, A03D 3466, A03D 3486
Patent
active
054718244
ABSTRACT:
A trimming apparatus comprising a platform, a plurality of wheels and a plurality of cutters. The platform has a kickback capability and is biased into an operable position, but capable of kicking back when the apparatus contacts rigid obstacles during the trimming operation. The cutting elements include a plurality of flexible blades having a cutting radius larger than the guide disks which are provided to contact obstacle and help the invention be steered around such obstacles. Optional bumpers are provided to further enable the device to "ride over" obstacles and uneven ground terrain. An independent power source such as an electrical or combustible engine having a drive shaft connected to a drive pulley which in turn is interconnected with the cutting elements by a cutter pulley and idler pulley arrangement so as to maintain a desired tension on the drive belt during operation of the device. The cutting blades are pivotally mounted to the cutting pulleys so that they may free float and recoil in response to contacting rigid obstacles.
REFERENCES:
patent: 2960811 (1960-11-01), Roesel
patent: 3526083 (1970-09-01), Barry et al.
patent: 5065566 (1991-11-01), Gates
patent: 5167108 (1992-12-01), Bird
patent: 5287683 (1994-02-01), Smith
Bagnell David J.
Wascher Rick R.
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