Earth working – With drive means for tool or cleaner – With specific relationship of mast-type hitch to implement
Patent
1990-11-15
1991-08-20
Corbin, David H.
Earth working
With drive means for tool or cleaner
With specific relationship of mast-type hitch to implement
172125, 172273, 74 1563, 474113, A01B 7106, A01B 5906
Patent
active
050406159
ABSTRACT:
The power-take-off conversion unit of this invention is adapted for attachment to a vehicle with a driving pulley rotatable in a generally vertical plane and driving an elastic belt, wherein the vehicle has two mounting brackets located beneath the pulley. The unit has a frame with an arm that extends rearwardly from a rear portion of the frame. Two pins extending from the arm are adapted to engage within the mounting brackets on the vehicle to allow the frame to rotate about a horizontal axis. The frame has a planar locking surface extending therefrom and a cam surface which extends downwardly and outwardly from the locking surface. A driven pulley is rotatively mounted within the frame to engage with and be driven by the elastic belt of the vehicle. A belt-tensioning bar is rotatively mounted to the vehicle about a horizontal axis which is located above the locking surface of the frame. The bar has a portion which is downwardly offset to engage with the cam surface of the frame and cause the frame to rotate such that a desired tension will be applied to the belt. A driveshaft extends from the driven pulley and is adapted for driving engagement with an implement attached to the vehicle. A releasable lock is located on the belt-tensioning bar to selectively fix the position of the bar with respect to the vehicle.
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John Deere Lawn and Garden Tractors, 300-400 Series.
Corbin David H.
Support Services International, Inc.
Thompson Jeffrey L.
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